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        1762-UM001B-EN-P, MicroLogix 1200 Programmable Controllers
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1.                                   Catalog Number  n A B nxA nxB  Number of Device Current Requirements Calculated Current  Modules at 5V dc  mA  at 24V dc  mA    at5V dc  mA    at 24V dc  mA    1762 1A8 50 0   1762 108 50 0   1762 1016 60 0   1762 0A8 115 0   1762 0B8 115 0   1762 0B16 175 0   1762 OW8 80 90   1762 OW16 120 140   1762 IF20F2 40 105   1762 IF4 40 50   Total Modules  6 maximum   Subtotal 2                  1  Refer to your expansion 1 0 Installation Instructions for Current Requirements not listed in this table     Table F 7 Validating Systems using 1762 L24AWA or 1762 L24BXB    Maximum Allowable Values    Calculated Values             Current  Current  Subtotal 1 from Table F 5   Subtotal 2 from Table F 6     400 mA at 5V de 350 mA at 24V de mA at 5V de mA at 24V de  System Loading  System Loading      mA x 5V     mA x 24V     mW   mW    mW  10 4 Watts   W    Publication 1762 UM001B EN P    System Loading and Heat Dissipation F 5    Table F8 Validating Systems using 1762 L24BWA                   Maximum Allowable Values Calculated Values  Current for Devices Connected to the  24V de Sensor   Sum of all sensor currents  Supply  Include 1761 NET AIC here rather than in TableF 5  if it is powered externally by  the sensor supply  250 mA at 24V de mA at 24V de  Current for MicroLogix Accessories and Expansion 1 0    Current  Subtotal 1 from Table F 5   Subtotal 2 from Table F 6    400 mA at 5V de 350 mA at 24V de mA at 5 V de mA at 24V de  System Loading  System L
2.                      VDC   DC  OP ee  A  ourz          r         OUT 4 pil  CR   r    cR     OUT6 ee  OUT7   CR  Lon 24V dc  source   OUT 9  t    or     OUT 11 sAm ca      rae OUT 12       OUT 14 A   A outis  Decon        4  Y i             Figure 3 27 1762 0W8 Wiring Diagram                                                                            Wat VAC VDC 17 L1 VACI    OUTO  ouri HERH L2 Det con  CAH oure YY  Ne  ours HCR  Lt VACo                  vac voce  our  Hah   op  Z  L2 DC2COM  AH ours  O OUTS  N     OF  out                       ol                Publication 1762 UM001B EN P    3 20 Wiring Your Controller    Publication 1762 UM001B EN P    Figure 3 28 1762 OW16 Wiring Diagram                                                                         1    VAC VDC L1  N 4  ri a OUT 0 0   12     OUT 1  HCR  OUT2               OUT 3  cr   HOH outa  gt   L OUT5 TEH  OUT 6  T     OUT              VAC VDCG    DC  de    1O outs  OUT 9 Lor   De  OUT 10                  OUT 14         tO  our 12  ca OUT 13                             Analog Wiring  System Wiring Guidelines    Consider the following when wiring your analog modules     e The analog common  COM  is not connected to earth ground inside  the module  All terminals are electrically isolated from the system     e Channels are not isolated from each other   e Use Belden    8761  or equivalent  shielded wire     e Under normal conditions  the drain wire  shield  should be connected  to the metal mounting panel  earth
3.                 1761 CBL AP00 or 1761 CBL PM02  Port 4 D    Port 3  Port 2 RS 485 connector  DB 9 RS 232   6  6 1 cable straight D connector  clo  678 i he  et 3   Be e  8 E a 4 3 o o o   o    com  9 O 5 4 f   CET  1 2 2 LA   CHS GND  1  Table 4 7 AIC  Terminals  Pin  Port 1  DB 9 RS 232 Port 2 2    1761 CBL PM02 Port 3  RS 485  cable  Connector  1  received line signal detector  24V dc chassis ground   DCD   2  received data  RxD  ground  GND  cable shield  3  transmitted data  TxD  request to send  RTS  signal ground  4  DTE ready  DTR  received data  RxD     DH485 data B  5  signal common  GND  received line signal detector  DH485 data A   DCD   6  DCE ready  DSR     clear to send  CTS     termination  7  request to send  RTS  transmitted data  TxD  not applicable  8  clear to send  CTS  ground  GND  not applicable  9 fnot applicable not applicable not applicable    1  On port 1  pin 4 is electronically jumpered to pin 6  Whenever the AIC  is powered on  pin 4 will match the  state of pin 6     2  An 8 pin mini DIN connector is used for making connections to port 2  This connector is not commercially  available  If you are making a cable to connect to port 2  you must configure your cable to connect to the  Allen Bradley cable shown above     3  In the 1761 CBL PM02 cable  pins 4 and 6 are jumpered together within the DB 9 connector     Publication 1762 UM001B EN P    Communication Connections 4 15    Safety Considerations    This equipment is suitable for use in Class I  
4.               25 Pin   9 Pin  TXD   2 3  RXD   3 2  GND   7 5  DCD  8 1  DTR  20 4  DSR  6 6  CTS  5 8  RTS  4 7                Publication 1762 UM001B EN P    4 6 Communication Connections    Connecting to a DF1 Half Duplex Network    Use this diagram for DF1 Half Duplex Master Slave protocol without  hardware handshaking     SLC 5 03 processor    MicroLogix 1200   en a    A   AEE Loo   DF1 i   Master                Jo                                                                    1761 CBL AMOO or 1761 CBL HM02 4          1 CBL APOO or 1761 CBL PM021  DF1 Slave    radio modem  or lease line                     J  straight 9 25 pin cable    straight 9 25  pin cable                   MicroLogix 1200 MicroLogix 1200   fo  Q    2     i     IJ ie          Vl ai pag    1761 CBL AMOO or                     Ja 1761 CBL HM02 to   4     761 CBL APOO or    i DFI  1761 CBL PM02 to controller      controller    1761 CBL AP00 or  1761 CBL PM02 to   4     1761 CBL AMO0 or  1761 CBL HM02 to   4     controller controller    RS 485 DF1 Half Duplex RS 485 DF1 Half Duplex     1  DB 9 RS 232 port   2  mini DIN 8 RS 232 port   3  RS 485 port     4  Series C or higher cables are required     Publication 1762 UM001B EN P    Connecting to a DH485    Network    Communication Connections 4 7    The following illustration shows how to connect to a DH485 network     MicroLogix DH485 Network  MicroLogix 1200                      connection from port 1 or  port 2 to MicroLogix    1761 CBL AMOO  or 176
5.          VAC   VAC  OUT 0f OUT 1  OUT 2  VAC JOUT 5  OUT 6  OUT 8  L1   NEUT DC 3   VAC   VAC   OUT 3  OUT 4  VAC   OUT 7  OUT 9  DC1   DC2 DC 4     E      es  oD           DCa Lila L1b L2b L2c Lid    Figure 3 13 1762 L24BXB Output Wiring Diagram     DCa  DCb  DCc Lid        DCa  DCb  DCc  DCc    1762 L40AWA  1762 L40BWA and 1762 L40BXB Wiring Diagrams    Figure 3 14 1762 L40AWA Input Wiring Diagram    Lla L1b Lic                                                          NC                                                             Publication 1762 UM001B EN P    3 14 Wiring Your Controller    Figure 3 15 1762 L40BWA Sinking Input Wiring Diagram     DCb  DCb              DC 4DCa  DCb  DCc    Figure 3 16 1762 L40BWA Sourcing Input Wiring Diagram                                                                                                                 DCb  DCb      DCa  DCc  Ai nh     DC  ee      i         can IN 0 IN 2 ae IN 5 IN 7 IN8    IN10  IN12  IN14  IN 16  IN 18   IN 20   IN 22  24 COM COM  COM 0 IN 1 IN 3 IN 4 IN 6 2 INQ  IN11  IN13   IN15   IN17    IN 19   IN 21   IN 23  l l l l l l l      NY A i   YN i  e  ADC _  gt   gt    gt    gt   gt   Dea ee    Dc   DCa  DCc    Figure 3 17 1762 L40BXB Sinking Input Wiring Diagram    eee eee a  ee no   m2  OM N10 Jin a2 N14 N16  N18  IN20   IN22  NOT   COM COM     O Ley   GA A OA    Dla  DCa 4DCb  DCc     DCa  DCb  DCb           Publication 1762 UM001B EN P    Wiring Your Controller 3 15       Figure 3 18 1762 L40BXB Sourcin
6.    6 1747 CP3 or 1761 CBL AC00            24V de                   MicroLogix 1200 provides power to the AIC  or an  external power supply may be used      1  Series C or higher cables are required     Publication 1762 UM001B EN P    4 4 Communication Connections    Publication 1762 UM001B EN P    Using a Modem    You can use modems to connect a personal computer to one MicroLogix  1200 controller  using DF1 Full Duplex protocol    to multiple controllers   using DF1 Half Duplex protocol   or Modbus RTU Slave protocol  as  shown in the following illustration  Do not attempt to use DH485 protocol  through modems under any circumstance   See Appendix E for  information on types of modems you can use with the micro controllers      Personal Computer  Modem Cable    a  Init                      eeseooo    Modem NS                MicroLogix 1200       Protocol Options                       e DF1 Full Duplex protocol  to 1 controller   e DF1 Half Duplex protocol  to multiple controllers   e Modbus RTU Slave protocol       Optical Isolator   recommended                                CA    Modem E    We recommend using an AIC   catalog number 1761 NET AIC  as your  optical isolator  See page 4 11 for specific AIC  cabling information     Isolated Modem Connection    Using an AIC  to isolate the modem is illustrated below     24V dc    MicroLogix 1200 provides power to the AIC  or an external power    supply may be used  See Appendix F  System Loading and Heat  Dissipation     MicroL
7.    Mounting 1762  Expansion 1 0 A During panel or DIN rail mounting of all devices  be sure  that all debris  metal chips  wire stands  etc   is kept from  falling into the module  Debris that falls into the module  could cause damage when the module is under power   DIN Rail Mounting    The module can be mounted using the following DIN rails  35 x 7 5 mm   EN 50 022   35 x 7 5  or 35 x 15 mm  EN 50 022   35 x 15      Before mounting the module on a DIN rail  close the DIN rail latch  Press    the DIN rail mounting area of the module against the DIN rail  The latch  momentarily opens and locks into place     Publication 1762 UM001B EN P    2 18 Installing Your Controller    Use DIN rail end anchors  Allen Bradley part number 1492 EA35 or  1492 EAH35  for vibration or shock environments  The following  illustration shows the location of the end anchors     End Anchor       NOTE 1762 expansion I O must be mounted horizontally as    illustrated     NOTE For environments with greater vibration and shock    concerns  use the panel mounting method described  below  instead of DIN rail mounting     Panel Mounting    Use the dimensional template shown below to mount the module  The  preferred mounting method is to use two M4 or  8 panhead screws per  module  M3 5 or  6 panhead screws may also be used  but a washer is  needed to ensure a good mechanical contact  Mounting screws are  required on every module                                                                               
8.    e Bulleted lists such as this one provide information  not procedural  steps     e Numbered lists provide sequential steps or hierarchical information     o Italic type is used for emphasis     Rockwell Automation offers support services worldwide  with over 75  Sales Support Offices  512 authorized Distributors and 260 authorized  Systems Integrators located throughout the United States alone  plus  Rockwell Automation representatives in every major country in the world     Local Product Support    Contact your local Rockwell Automation representative for   e sales and order support  e product technical training  e warranty support       support service agreements    Technical Product Assistance    If you need to contact Rockwell Automation for technical assistance   please review the information in the Troubleshooting appendix first  Then  call your local Rockwell Automation representative     Your Questions or Comments on this Manual    If you find a problem with this manual  or you have any suggestions for  how this manual could be made more useful to you  please contact us at  the address below     Rockwell Automation   Control and Information Group  Technical Communication  Dept  A602V  P O  Box 2086   Milwaukee  WI 53201 2086    or visit our internet page at  http   www ab com micrologix    Publication 1762 UM001B EN P    Publication 1762 UM001B EN P    Chapter 1       Hardware Features    Hardware Overview    The Bulletin 1762  MicroLogix 1200 programmable controll
9.    no n aana 24448485 2 17   Mounting 1762 Expansion I O    noaua aoaaa aeea 2 17  DIN Rail Mounting    aaua aaa 2 17  Panel Montgri Heal aKa eR pea EEO SeA 2 18   Connecting Expansion W O     aana basa ee a hh 4 A Se oie ds 2 19   Chapter 3   Wiring Requirements               00 2000 eee eee 3 1  Wiring Recommendation     Riki hs cath he i es 3 1   Using Surge Suppressors    Foc US ba SSS ESO OT ES Ss 3 3  Recommended Surge Suppressors                  3 5   Grounding the Controller     o   n anaoa aaa 3 6   Wining DiagtanS Da eae eae P44 ON OS EE SN E 3 7  Terminal Block Layouts 2  524  a ohn ae ehh ew Beds 3 7  Terminal Groupings      sasaaa aaa aiyhce  ded Got a iatig Seok Oe 3 9   Sinking and Sourcing Wiring Diagrams                 3 10  1762 L24AWA  1762 L24BWA and 1762 L24BXB Wiring  DiaStains i 4 sox tar cate bE Oh anc be  EA ee Ee Aes 3 11  1762 L40AWA  1762 L40BWA and 1762 L40BXB Wiring  Diastase aa eee dasa Goatees aot bed oe bo and ee 3 13   Controller I O Wiring 5 06 2 osaa Bhs cb ee SOR SOREL 3 16  Minimizing Electrical Noise      403 nnno anaana 3 16   Expansion I O Wiring    n e saaa 3 16  Discrete Wiring Diagrams               000000050  3 16  Analog WiN S io ecei pied  oe Geta Goa ke eer a ES Ce 3 20   Chapter 4   Default Communication Configuration                 4 1   Using the Communications Toggle Push Button          4 2   Connecting to the RS 232 Port    osanaan oe ate 5 EGS 4 2  Making a DF1 Point to Point Connection             4 3  sine a Modeni n
10.   150V Working Voltage  IEC  Class 2 reinforced insulation        Expansion 1 0  Specifications    Discrete 1 0 Modules    Table A 12 General Specifications  Specification  Dimensions    Specifications A 7    Value  90 mm  height  x 87 mm  depth  x 40 4 mm  width   height including mounting tabs is 110 mm    3 54 in   height  x 3 43 in   depth  x 1 59 in   width   height including mounting tabs is 4 33 in        Storage Temperature     40  C to  85  C   40  F to  185  F        Operating Temperature    0  C to  55  C   32  F to  131  F                    Operating Humidity 5  to 95  non condensing   Operating Altitude 2000 meters  6561 feet    Vibration Operating  10 to 500 Hz  5G  0 030 in  max  peak to peak   2 hours per axis  Relay Operation  1 5G   Shock Operating  30G panel mounted  3 pulses per axis  Relay Operation  7G  Non Operating  50G panel mounted  3 pulses per axis   40G DIN Rail mounted    Agency Certification C UL certified  under CSA    22 2 No  142     UL 508 listed  CE compliant for all applicable directives       Hazardous Environment Class    Class    Division 2  Hazardous Location  Groups A  B  C  D   UL 1604  C UL under CSA C22 2 No  213        Radiated and Conducted Emissions    EN50081 2 Class A       Electrical  EMC     The module has passed testing at the following levels        ESD Immunity  IEC1000 4 2     4 kV contact  8 kV air  4 kV indirect       Radiated Immunity  IEC1000 4 3     10 V m  80 to 1000 MHz  80  amplitude modulation   900  MHz keyed 
11.   Publication 1762 UM001B EN P    Figure 3 3 1762 L24BXB  Group 0 Group 1    Pl Pee  a oo   24   VDC   OUT f OUT f OUT f OUT J OUT   VAC f OUT  VDC  NEUT  0 1 2 4 6 DC 3 8  AAA   VAC f VAC J VDC f OUT   OUT   COM   OUT   OUT     DCO  DCi 2 3 5 2 7 g                 g gQ g g  Figure 3 4 1762 L40AWA  Group 0 Group 1 Group 2  Inputs  VAC   VAC H ou a  Outputs u au       VAC  DC 2       VAC   VAC  DCO  DC1  X S     gt  d  S F    Figure 3 5 1762 L40BWA  Group 0 Group 1 Group 2    tee   wo  wee IN10  IN 12  IN14  IN 16  IN 18  IN 20  IN 22  24  COM COM  Pgarnprra N11   IN13 finas fin a7 fin 19 f iN 21   IN23  vac   vac   out   out  out   vac   our  our  out   out   vac   out   our  ut  neut  o   4   2 Joos  5   71 8   to Joos  t3   15  vac   vac   vac   out   out  out   vac J out   our  outl our  pcoloc1 oc2  3   4   6 Jocs  9   ul 2  44  o nN y o gt   amp   g g g g g    Q  Ss Ss    S          Inputs       Outputs    Dg    S S S  S S S  S S S    Co        Na OIE The 24V dc sensor supply of the 1762 L40BWA should  not be used to power output circuits  It should only    be used to power input devices  e g  sensors   switches   See Master Control Relay on page 2 8 for  information on MCR wiring in output circuits        Figure 3 6 1762 L40BXB  Group 0 Group 1 Group 2     ne   wo  majo pogr IN 10   IN 12   IN 14   IN 16   IN 18   IN 20   IN 22           Inputs  pant anmrmrmimmE  Outputs  24   VDC a oe ce an g ae coN OUT   VAC   OUT   OUT  VDC  NEUT 10 foca  13   15    VAC   VAC oe ee P
12.  300  600  1200  2400  4800  9600  19 2K  and 38 4K  1200    Parity Toggles between None  Odd  and Even  None          Termination 1  Specifies the first termination character  The termination character defines the one or two character   d  sequence used to specify the end of an ASCII line received  Setting the first ASCII termination  character to undefined   ff  indicates no ASCII receiver line termination is used        Termination 2  Specifies the second termination character  The termination character defines the one or two  ff  character sequence used to specify the end of an ASCII line received  Setting the second ASCII  Termination character to undefined   ff  and the first ASCII Termination character to a defined value    d  indicates a single character termination sequence        Control Line   Toggles between No Handshaking  Half Duplex Modem  and Full Duplex Modem No Handshaking    Delete Mode  The Delete Mode allows you to select the mode of the    delete    character  Toggles between Ignore   Ignore  CRT  and Printer    Delete Mode affects the characters echoed back to the remote device  When Delete Mode is enabled   the previous character is removed from the receive buffer    In CRT mode  when a delete character is encountered  the controller echos three characters to the  device  backspace  space  and backspace  This erases the previous character on the terminal    In Printer Mode  when a delete character is encountered  the controller echos the slash characte
13.  7200 mW       8500 mW    8 50 Watts    Publication 1762 UM001B EN P    System Loading and Heat Dissipation F 3    Table F 4 Validating Systems using 1762 L24BWA    Maximum Allowable Values Calculated Values    Current for Devices Connected to the  24V de   Sum of all sensor currents                Sensor Supply   250 mA at 24V de 140 mA at 24V dc  example sensor value   Current for MicroLogix Accessories and Current Values  Subtotal 1 from Table F 1   Subtotal 2 from Table F 2    Expansion I 0   400 mA at 5V de 350 mA at 24V de 0 mA   260 mA   260 mA at 5V de 120 mA   180 mA   300 mA at 24V de  System Loading  System Loading      140 mA x 24V     260 mA x 5V     300 mA x 24V      3360 mW     1300 mW     7200 mW     11 860 mW  12 Watts   11 9 Watts  System Loading The tables below are provided for system loading validation  See System  Loading Example Calculations  24 Point Controller  on page F 1   Worksheet  Current Loading    Table F 5 Calculating the Current for MicroLogix Accessories    Catalog Number Device Current Requirements   Calculated Current  at 5V dc  mA    at24Vdc  mA    at5Vdce mA    at24V dc  mA        1761 NET AIC  when powered by the base unit  communications port  selector switch in the up position    Subtotal 1               1  This is an optional accessory  Current is consumed only if the accessory is installed     Publication 1762 UM001B EN P    F 4 System Loading and Heat Dissipation    Table F 6 Calculating the Current for Expansion 1 0               
14.  AMO00  or 1761 CBL HM02             RJ45 port    1761 CBL ASO9          or 1761 CBL AS03                               1747 CP3 or 1761 CBL AC00       NOTE This 3 node network is not expandable     Networked Operator Interface Device and MicroLogix Controllers       PanelView    AlC                                                                                     AIC   DH485 Network  AIC  AIC   5    3  A   go J  H  MicroLogix 1000    Publication 1762 UM001B EN P                                                                                                                                                                                                 SLC 5 04  AIC   BS Personal  TE fa Computer  Sy    MicroLogix 1200 MicroLogix 1500    Understanding the Communication Protocols E 15    MicroLogix Remote Packet Support    MicroLogix 1200 controllers can respond and initiate with  communications  or commands  that do not originate on the local DH485  network  This is useful in installations where communication is needed  between DH485 and DH  networks     The example below shows how to send messages from a device on the  DH  network to a MicroLogix controller on the DH485 network  This  method uses an SLC 5 04 processor as the bridge connection     When using this method  as shown in the illustration below      e PLC 5 devices can send read and write commands to MicroLogix 1200  controllers     e MicroLogix 1200 controllers can respond to MSG instructions received     e The Mi
15.  EN P    C 8 Troubleshooting Your System    Publication 1762 UM001B EN P    Preparing for Upgrade    Appendix D    Using Control Flash to Upgrade Your Operating  System    The operating system  OS  can be upgraded through the communication  port on the controller  In order to download a new operating system  you  must have the following     e ControlFlash    Upgrade Kit containing the new OS    e a Windows 95    Windows 98   or Windows NT    based computer to  run the download software   The ControlFlash    Upgrade Kit includes   e the operating system upgrade to be downloaded    e the ControlFlash programming tool  along with its support drivers and  on line help    e a readme first file explaining how to upgrade the operating system    Before upgrading the controller   s operating system  you must   e install ControlFlash software on your personal computer    e prepare the controller for updating    IMPORTANT Installing a new operating system deletes the user  program  After the operating system upgrade is    successful  you must transfer your control program  back to the controller  The communication parameters  are described on Table 4 1 on page 4 1     Install ControlFlash Software    Double click the 1762 LSC_FRNxx exe file to install the operating system  upgrade  where xx is the firmware revision number      Prepare the Controller for Updating    Controller Configuration  The controller must be configured for default communications  use    communications toggle push b
16.  For more than 2 modules   number of modules   1  x 40 mm  1 58 in    1454    40 4   z  0 57  reti   H DE fey      2 I   2  100 90 icrologx 13  S S   3 94   3 54  1200        UT A W he w N  A   95 86mm  3 774 in   h n 40 4  1762 L24AWA  1762 L24BWA  1762 L24BXB B 1 59                    B   145 8 mm  5 739 in      1762 L40AWA  1762 L40BWA  1762 L40BXB NOTE  All dimensions are in mm     inches   Hole spacing tolerance    0 4 mm  0 016 in       Publication 1762 UM001B EN P    Connecting  Expansion 1 0    Installing Your Controller 2 19    The expansion I O module is attached to the controller or another I O  module by means of a flat ribbon cable after mounting  as shown below        Pull Loop  NOTE Use the pull loop on the connector to disconnect  modules  Do not pull on the ribbon cable     NOTE Up to six expansion I O modules can be connected to a    controller depending upon the power supply loading        ATTENTION Remove power before removing or inserting an I O    module  When you remove or insert a module with  power applied  an electrical arc may occur  An electrical  arc can cause personal injury or property damage by   e sending an erroneous signal to your system   s field  devices  causing the controller to fault    e causing an explosion in a hazardous environment    Electrical arcing causes excessive wear to contacts on  both the module and its mating connector  Worn contacts  may create electrical resistance  reducing product  reliability       WARNING   EXPLOSIO
17.  Heat Dissipation F 9    Table F 16 Validating Systems using 1762 L40BWA                   Maximum Allowable Values Calculated Values  Current for Devices Connected to the  24V de Sensor   Sum of all sensor currents  Supply  Include 1761 NET AIC here rather than in Table F 13  if it is powered externally by  the sensor supply  400 mA at 24V de mA at 24V de  Current for MicroLogix Accessories and Expansion 1 0    Current  Subtotal 1 from Table F 13   Subtotal 2 from page Table F 14     600 mA at 5V de 500 mA at 24V de mA at 5 V de mA at 24V de  System Loading  System Loading      mA x 24V      mA x 5V     mA x 24V     mW   mW   mW    mW  16 Watts   W    Publication 1762 UM001B EN P    F 10 System Loading and Heat Dissipation    Calculating Heat  Dissipation    Table F 17 Heat Dissipation    Catalog Number    Use the following table when you need to determine the heat dissipation  of your system for installation in an enclosure  For System Loading  take  the value from the appropriate system loading worksheets on pages F 3     F 5  F 7 or F 9     Heat Dissipation                                                                                     Equation or Constant Calculation Sub Total  1762 L24AWA 15 2W    0 4 x System Loading  15 2W  0 4x_ ss W  W  1762 L24BWA 15 7W    0 4 x System Loading  15 7W  0 4x_ ss W  W  1762 L24BXB 17 0W    0 3 x System Loading  17 0W   0 3x___ W  W  1762 L40AWA 21 0W    0 4 x System Loading  210W   0 4x___ W W  1762 L40BWA 22 0W    0 4 x System Lo
18.  Layout    IN 0     IN 1     IN 2       IN 3       co          co             NOTE Grounding the cable shield at the module end only    usually provides sufficient noise immunity  However  for  best cable shield performance  earth ground the shield at  both ends  using a 0 01pF capacitor at one end to block  AC power ground currents  if necessary     Figure 3 34 Sensor Transmitter Types    2 Wire Transmitter Transmitter    Transmitter    Supply Signal    Transmitter  Signal        1  All power supplies rated N E C  Class 2     Publication 1762 UM001B EN P    Chapter 4       Default Communication  Configuration    Communication Connections    This chapter describes how to communicate to your control system  The  method you use and cabling required to connect your controller depends  on what type of system you are employing  This chapter also describes  how the controller establishes communication with the appropriate  network  Topics include     e default communication configurations   e using communications toggle push button  e connecting to RS 232 port   e connecting to DH485 network   e connecting to AIC     e DeviceNet communications    The MicroLogix 1200 has the following default communication  configuration     NOTE The default configuration is present when     e The controller is powered up for the first time     e The communications toggle push button specifies  default communications  the DCOMM LED is on      e An OS upgrade is completed     See Appendix E for more 
19.  Off Module Fault Cycle power  If condition persists  replace the  module  Call your local distributor or Allen Bradley  for assistance              Critical and Non Critical Errors    Non critical module errors are recoverable  Channel errors  over range or  under range errors  are non critical  Non critical error conditions are  indicated in the module input data table  Non critical configuration errors  are indicated by the extended error code  See Table C 5 on page C 6     Critical module errors are conditions that prevent normal or recoverable  operation of the system  When these types of errors occur  the system  leaves the run mode of operation  Critical module errors are indicated in  Table C 5 on page C 6     Troubleshooting Your System   C 5    Module Error DefinitionTable    Analog module errors are expressed in two fields as four digit Hex format  with the most significant digit as    don   t care    and irrelevant  The two  fields are    Module Error    and    Extended Error Information     The structure  of the module error data is shown below     Table C 3 Module ErrorTable     Don t Care    Bits Module Error Extended Error Information  15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0    0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0  Hex Digit 4 Hex Digit 3 Hex Digit 2 Hex Digit 1                                                          Module Error Field    The purpose of the module error field is to classify module errors into   three distinct groups  as described in the table below 
20.  Parameters                    Devices that use the DH485 Network                Important DH485 Network Planning Considerations      Example DH485 Connections  sei 9545 eee Cees   Modbus Communication Protocol                2      System Loading and Heat  Dissipation    Appendix F    System Loading Limitations               System Loading Example Calculations     24 Point Controller                 System Loading Worksheet              Current Loading  4 2 4  64 5 524 64 4 426 0    System Loading Example Calculations     40 Point Controller                 System Loading Worksheet              Calculating Heat Dissipation               Glossary    Index    Table of Contents v    Publication 1762 UM001B EN P    Table of Contents vi    Publication 1762 UM001B EN P    Preface       Read this preface to familiarize yourself with the rest of the manual  It  provides information concerning     e who should use this manual   e the purpose of this manual   e related documentation   e conventions used in this manual       Rockwell Automation support    Who Should Use this Use this manual if you are responsible for designing  installing   M l programming  or troubleshooting control systems that use MicroLogix     anua 1200 controllers     You should have a basic understanding of electrical circuitry and  familiarity with relay logic  If you do not  obtain the proper training  before using this product     Purpose of this Manual This manual is a reference guide for MicroLogix 1200 con
21.  RM Relays ac coil None Required  Bulletin 700 Type R Relay 12V dc 199 FSMA9  Bulletin 700 Type RM Relay 12V de  Bulletin 700 Type R Relay 24V de 199 FSMA9  Bulletin 700 Type RM Relay 24V de  Bulletin 700 Type R Relay 48V dc 199 FSMA9  Bulletin 700 Type RM Relay 48V de  Bulletin 700 Type R Relay 115 125V de 199 FSMA10  Bulletin 700 Type RM Relay 115 125V de  Bulletin 700 Type R Relay 230 250V de 199 FSMA11  Bulletin 700 Type RM Relay 230 250V de  Bulletin 700 Type N  P  or PK Relay 150V max  acorDC   700 N242  Miscellaneous electromagnetic 150V max  acorDC   700 N24 2  devices limited to 35 sealed VA        1  Varistor     Not recommended for use on relay outputs    2  RC Type     Do not use withTriac outputs     Publication 1762 UM001B EN P    3 6 Wiring Your Controller    Grounding the Controller 10 solid state control systems  grounding and wire routing helps limit the    Publication 1762 UM001B EN P    effects of noise due to electromagnetic interference  EMD  Run the ground  connection from the ground screw of the controller to the ground bus  prior to connecting any devices  Use AWG  14 wire  For AC powered  controllers  this connection must be made for safety purposes     ATTENTION All devices connected to the RS 232 channel must be  referenced to controller ground  or be floating  not    referenced to a potential other than ground   Failure to  follow this procedure may result in property damage or  personal injury     e For 1762 L24BWA and 1762 L40BWA controllers    
22.  The COM of the sensor supply is also connected to  chassis ground internally  The 24V dc sensor power  source should not be used to power output circuits  It  should only be used to power input devices     e For 1762 L24BXB and 1762 L40BXB controllers     The VDC NEUT or common terminal of the power  supply is also connected to chassis ground internally        This product is intended to be mounted to a well grounded mounting  surface such as a metal panel  Refer to the Industrial Automation Wiring  and Grounding Guidelines  publication 1770 4 1  for additional  information  Additional grounding connections from the mounting tab or  DIN rail  if used  are not required unless the mounting surface cannot be  grounded     NOTE It is recommended to use all four mounting positions for    panel mounting installation                                            Grounding Stamping      gt         ATTENTION  Remove the protective debris strip before applying    power to the controller  Failure to remove the strip  may cause the controller to overheat     Wiring Your Controller 3 7       Wiring Diagrams    The following illustrations show the wiring diagrams for the MicroLogix  1200 controllers  Controllers with dc inputs can be wired as either sinking  or sourcing inputs   Sinking and sourcing does not apply to ac inputs    Refer to Sinking and Sourcing Wiring Diagrams on page 3 10    The controller terminal block layouts are shown below  The shading on  the labels indicates how the te
23.  The type of error  determines what kind of information exists in the extended error  information field  These types of module errors are typically reported in   the controller   s I O status file  Refer to the MicroLogix 1200 and 1500    Programmable Controllers Instruction Set Reference Manual  publication  1762 RM001C EN P for more information     Table C 4 Module ErrorTypes          Error Type Module Error Description  Field Value  Bits 11 through 09   Binary   No Errors 000 No error is present  The extended error field holds no  additional information   Hardware Errors  001 General and specific hardware error codes are specified  in the extended error information field   Configuration 1010 Module specific error codes are indicated in the extended  Errors error field  These error codes correspond to options that    you can change directly  For example  the input range or  input filter selection              Extended Error Information Field    Check the extended error information field when a non zero value is  present in the module error field  See Table C 5 on page C 6     NOTE If no errors are present in the module error field  the  extended error information field is set to zero     Publication 1762 UM001B EN P    C 6 Troubleshooting Your System    Hardware Errors    General or module specific hardware errors are indicated by module error  code 2  See Table C 5     Configuration Errors  If you set the fields in the configuration file to invalid or unsupported  values  
24.  a period of time  Both of these  conditions are considered to be a loss of power for the system     For most applications  normal convective cooling keeps the controller  within the specified operating range  Ensure that the specified  temperature range is maintained  Proper spacing of components within an  enclosure is usually sufficient for heat dissipation     In some applications  a substantial amount of heat is produced by other  equipment inside or outside the enclosure  In this case  place blower fans  inside the enclosure to assist in air circulation and to reduce    hot spots     near the controller     Additional cooling provisions might be necessary when high ambient  temperatures are encountered     NOTE Do not bring in unfiltered outside air  Place the controller    in an enclosure to protect it from a corrosive atmosphere   Harmful contaminants or dirt could cause improper  operation or damage to components  In extreme cases   you may need to use air conditioning to protect against  heat build up within the enclosure     Publication 1762 UM001B EN P    2 8 Installing Your Controller       Master Control Relay    Publication 1762 UM001B EN P    A hard wired master control relay  MCR  provides a reliable means for  emergency machine shutdown  Since the master control relay allows the  placement of several emergency stop switches in different locations  its  installation is important from a safety standpoint  Overtravel limit switches  or mushroom head push button
25.  amp  Allen Bradley    MicroLogix    1200  Programmable  Controllers    Bulletin 1762 Controllers and  Expansion 1 0    User Manual    a  et ee ee ee mm    Automation              Important User Information    Because of the variety of uses for the products described in this  publication  those responsible for the application and use of this  control equipment must satisfy themselves that all necessary steps  have been taken to assure that each application and use meets all  performance and safety requirements  including any applicable laws   regulations  codes and standards     The illustrations  charts  sample programs and layout examples shown  in this guide are intended solely for purposes of example  Since there  are many variables and requirements associated with any particular  installation  Rockwell Automation does not assume responsibility or  liability  to include intellectual property liability  for actual use based  upon the examples shown in this publication     Rockwell Automation publication SGI 1 1  Safety Guidelines for the  Application  Installation and Maintenance of Solid State Control   available from your local Rockwell Automation office   describes  some important differences between solid state equipment and  electromechanical devices that should be taken into consideration  when applying products such as those described in this publication     Reproduction of the contents of this copyrighted publication  in whole  or part  without written permission o
26.  and plan the network     Number of Devices and Length of Communication Cable    The maximum length of the communication cable is 1219m  4000 ft   This  is the total cable distance from the first node to the last node in a  segment  However  two segments can be used to extend the DH485  network to 2438m  8000 ft   For additional information on connections  using the AIC   refer to the Advanced Interface Converter  AIC   User  Manual  publication 1761 6 4     Planning Cable Routes    Follow these guidelines to help protect the communication cable from  electrical interference        Keep the communication cable at least 1 52m  5 ft  from any electric  motors  transformers  rectifiers  generators  arc welders  induction  furnaces  or sources of microwave radiation     e If you must run the cable across power feed lines  run the cable at  right angles to the lines     e If you do not run the cable through a contiguous metallic wireway or  conduit  keep the communication cable at least 0 15m  6 in   from ac  power lines of less than 20A  0 30m  1 ft  from lines greater than 20A   but only up to 100K VA  and 0 60m  2 ft  from lines of 100K VA or  more     Publication 1762 UM001B EN P    E 12 Understanding the Communication Protocols       Publication 1762 UM001B EN P    e If you run the cable through a contiguous metallic wireway or  conduit  keep the communication cable at least 0 08m G in   from ac  power lines of less than 20A  0 15m  6 in   from lines greater than 20A   but on
27.  ground   Keep the shield  connection to earth ground as short as possible     e To ensure optimum accuracy for voltage type inputs  limit overall  cable impedance by keeping all analog cables as short as possible   Locate the I O system as close to your voltage type sensors or  actuators as possible     e The module does not provide loop power for analog inputs  Use a  power supply that matches the input transmitter specifications     1762 IF20F2 Input Type Selection    Select the input type  current or voltage  using the switches located on the  module   s circuit board and the input type range selection bits in the    Wiring Your Controller 3 21    Configuration Data File  Refer to MicroLogix 1200 and 1500  Programmable Controllers Instruction Set Reference Manual  publication  number 1762 RM001C EN P  You can access the switches through the  ventilation slots on the top of the module  Switch 1 controls channel 0   switch 2 controls channel 1  The factory default setting for both switch 1  and switch 2 is Current  Switch positions are shown below     PA Switch Location 4 A Voltage  OFF   pm    VSS O  P SS 1 2     ON  Default                      1762 IF20F2 Output Type Selection    The output type selection  current or voltage  is made by wiring to the  appropriate terminals  Iout or Vout  and by the type range selection bits  in the Configuration Data File  Refer to MicroLogix 1200 and 1500  Programmable Controllers Instruction Set Reference Manual  publication  number 17
28.  i Eon VAC   OUT  OUT   OUT  DC 0   DC1 DC3  11 12   14    G  tog  Sou  Cr  KE  Cr  Up 9  Gr  Uog    Wiring Your Controller 3 9    Terminal Groupings    Table 3 3 Input Terminal Grouping                                                                                                                                                 Controller inputs  Input Group Common Terminal   Input Terminal  Group 0 AC COM 0 1 0 through 1 3  ise AAW Group 1 AC COM 1 1 4 through 1 13  Group 0 DC COM 0 1 0 through 1 3  Mee ete Group 1 DC COM 1 1 4 through 1 13  Group 0 DC COM 0 1 0 through 1 3  1762  L2ABXB Group 1 DC COM 1 1 4 through 1 13  Group 0 AC COM 0 1 0 through 1 3  1762 L40AWA Group 1 AC COM 1 1 4 through   7  Group 2 AC COM 2 1 8 through 1 23  Group 0 DC COM 0 1 0 through 1 3  1762 L40BWA Group 1 DC COM 1 1 4 through   7  Group 2 DC COM 2 1 8 through 1 23  Group 0 DC COM 0 1 0 through 1 3  1762 L40BXB Group 1 DC COM 1 1 4 through   7  Group 2 DC COM 2 1 8 through 1 23  Table 3 4 Output Terminal Grouping  Outputs  Controller Output Group   Voltage Terminal Output Terminal  Group 0 VAC VDC 0 0 0  Group 1 VAC VDC 1 0 1  1762 L24AWA Group 2 VAC VDC 2 0 2 through 0 3  Group 3 VAC VDC 3 04 through 0 5  Group 4 VAC VDC 4 0 6 through 0 9  Group 0 VAC VDC 0 0 0  Group 1 VAC VDC 1 0 1  1762 L24BWA Group 2 VAC VDC 2 0 2 through 0 3  Group 3 VAC VDC 3 0 4 through 0 5  Group 4 VAC VDC 4 0 6 through 0 9  Group 0 VAC VDC 0 0 0  Group 1 VAC VDC 1 0 1  eee Group 2 VDC 2 VDCCOM2  0 2 through 0 6  Gro
29.  insulation        Output Group to  Backplane Isolation    Verified by one of the following dielectric tests  1836V ac for 1 second  or 2596V dc for 1 second       265V ac Working Voltage  IEC Class 2 reinforced insulation         Output Group to Output  Group Isolation    Verified by one of the following dielectric tests  1836V ac for 1 second  or 2596V dc for 1 second          265V ac Working Voltage  basic insulation  150V Working Voltage  IEC  Class 2 reinforced insulation        Table A 11 Working Voltage  1762 L24BXB  1762 L40BXB     Description    Input Group to  Backplane Isolation and  Input Group to Input  Group Isolation    1762 L24BXB  1762 L40BXB    Verified by one of the following dielectric tests  1200V ac for 1 second  or 1697V dc for 1 second       75V de Working Voltage  IEC Class 2 reinforced insulation        FET Output Group to  Backplane Isolation    Verified by one of the following dielectric tests  1200V ac for 1 second  or 1697V dc for 1 second       75V de Working Voltage  IEC Class 2 reinforced insulation        Relay Output Group to  Backplane Isolation    Verified by one of the following dielectric tests  1836V ac for 1 second  or 2596V dc for 1 second       265V ac Working Voltage  IEC Class 2 reinforced insulation         Relay Output Group to  Relay Output Group and  FET Output Group  Isolation    Verified by one of the following dielectric tests  1836V ac for 1 second  or 2596V dc for 1 second          265V ac Working Voltage  basic insulation
30.  is the load level section of the electrical distribution system  At this level transient voltages   are controlled and do not exceed the impulse voltage capability of the product s insulation     3  Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commission  IEC  designations     Installing Your Controller 2 15    DIN Rail Mounting    The maximum extension of the latch is 14 mm  0 55 in   in the open  position  A flat blade screwdriver is required for removal of the controller   The controller can be mounted to EN50022 35x7 5 or EN50022 35x15 DIN  rails  DIN rail mounting dimensions are shown below                                A    27 5 mm   1 08 in    90 mm   3 5 in    27 5mm  l  1 08 in    Y                      To install your controller on the DIN rail     1  Mount your DIN rail   Make sure that the placement of the controller  on the DIN rail meets the recommended spacing requirements   see Controller and Expansion I O Spacing on page 2 13  Refer to the  mounting template inside the back cover of this document      2  Close the DIN latch  if it is open   3  Hook the top slot over the DIN rail     4  While pressing the controller down against the top of the rail  snap  the bottom of the controller into position     5  Leave the protective debris shield attached until you are finished  wiring the controller and any other devices     Publication 1762 UM001B EN P    2 16 Installing Your Controller    To remove your controller from the DI
31.  more information on    Real Time Clock Function    File    and    Memory Module Information File    refer to  the MicroLogix 1200 and 1500 Programmable  Controllers Instruction Set Reference Manual   publication 1762 RM001C EN P     Three modules with different levels of functionality are available for use  with the MicroLogix 1200 controller           Catalog Number Function   1762 RTC Real Time Clock   1762 MM 1 Memory Module   1762 MM1RTC Memory Module and Real Time Clock          Removal Insertion Under Power    At power up and when the controller enters a run or test mode  the  controller determines if a real time clock module  RTC  is present  If an  RTC is present  its values  date  time and status  are written to the RTC  Function File in the controller     The RTC module can be installed or removed at any time without risk of  damage to either the module or the controller  If an RTC is installed while  the MicroLogix 1200 is in a run or test mode  the module is not  recognized until either a power cycle occurs or until the controller is  placed in a non executing mode  program mode  suspend mode or fault  condition      Removal of the RTC during run mode is detected within one program    scan  Removal of the RTC while in run mode causes the controller to write  zeros to the RTC Function File     Publication 1762 UM001B EN P    6 2 Using Real Time Clock and Memory Modules    Publication 1762 UM001B EN P    The following table indicates the accuracy of the RTC for var
32.  port 2 on another AIC  port2   yes external  ion switch should be set to cable                                                                                                                    TA s wmn B  1761 CBL AC00 Di  Cable Length Connections from to AIC    External Power  Power Supply   Selection  Required   Switch  Setting    1747 CP3 3m  9 8 ft  SLC 5 03 or SLC 5 04 processor  channel 0   port 1 yes external   CBL   1  4 1771  1761 CBL ACOO Sen in  PC COM port port 1 yes external  PanelView 550 through NULL modem port 1 yes external  adapter  DTAM Plus   DTAM Micro    port 1 yes external  Port 1 on another AIC  port 1 yes external   1  External power supply required unless the AIC  is powered by the device connected to port 2  then the selection switch should be set to cable   Ee ia  CS fa  oe a N l  ier      ser supplied cable  lt  IL  Cable Length Connections from to AIC    External Power  Power Supply   Selection  Required   Switch  Setting    straight 9 25 pin       modem or other communication device external           1  External power supp       y required unless the AIC  is powered by the device connected to port 2  then the selection switch should be set to cable     Publication 1762 UM001B EN P    Cable    1761 CBL ASO3  1761 CBL ASO9       Length    3m  9 8 ft   9 5m  31 17 ft                                            Communication Connections       4 13                    1  External power supply required unless the AIC  is powered by the device connect
33.  power cycle occurs  or until the  controller is placed in a non executing mode  program mode  suspend  mode or fault condition         Appendix A                                                                Specifications  Controller  Specifications  Table A 1 General Specifications  Description 1762   L24AWA L24BWA L24BXB L40AWA L40BWA L40BXB  Dimensions Height  90 mm  Height  90 mm  104 mm  with DIN latch open  104 mm  with DIN latch open   Width  110 mm  Depth  87 mm Width  160 mm  Depth  87 mm  Shipping Weight 0 9 kg  2 0 Ibs  1 1 kg  2 4 Ibs   Number of   0 14 inputs and 10 outputs 24 inputs  16 outputs  Power Supply 100 to 240V ac 24V de 100 to 240V ac 24V de     15    10     15   10       15    10      15    10    at 47 to 63 Hz Class 2 at 47 to 63 Hz Class 2  SELV SELV  Heat Dissipation See Appendix F  Power Supply Inrush  120V ac  25A for 8 ms 24V de  120V ac  25A for 8 ms 24V de   240V ac  40A for 4 ms 15A for 240V ac  40A for 4 ms 15A for  20 ms 30 ms  Power Supply Usage  68 VA 70 VA 27W 80 VA 82 VA 40W  Power 5V de 400 mA 400 mal 400 mA 600 mA 600 mal2  600 mA  l  a 24V de 1350 mA 350 mA 350 mA 500 mA 500 maa  500 mA  Sensor Power Output none 250 mA at 24V dc  none none 400 mA at 24V de  none  AC Ripple  lt  500 mV AC Ripple  lt  500 mV  peak to peak peak to peak  400 uF max  400 uF max  2  Input Circuit Type 120V ac 24V dc 24V dc 120V ac 24V de 24V dc  sink source sink source sink source sink source  Output Circuit Type Relay Relay Relay FET Relay Relay Relay 
34.  to the positive side   V  of the field supply are sourcing field devices     Publication 1762 UM001B EN P    Common  of the field power supply are    Table A 14 Output Specifications    Specifications A 9                                                             Specification  1762 0A8 1762 0B8 1762 0B16 1762 OW8 1762 OW16  Approximate 215g  0 48 Ibs   210g  0 46 Ibs   235g  0 52 Ibs   228g  0 50 Ibs   285g  0 63lbs    Shipping  Weight   With Carton   Voltage 100 to 240V ac 24V de 24V de AC DC normally open  AC DC normally open  Category relay relay  Operating 85V ac to 265V ac   47 to  20 4V de to 26 4V de    20 4V de to 26 4V de  5 to 265V ac 5 to 265V ac  Voltage Range  63 Hz 5 to 125V de 5 to 125V de  Number of 8 8 16 8 16  Outputs  Bus Current 115 mA at 5V de 115 mA at 5V de 175 mA at 5V de 80 mA at 5V de 120 mA at 5V de  Draw  max    1 0 575W   0 575W   0 88W   0 40W   0 60    90 mA at 24V de 140 mA at 24V de    2 16W   3 36W   Heat 2 9 Watts 1 61 Watts 2 9 Watts at 30  C 2 9 Watts 5 6 Watts  Dissipation  86  F    max   2 1 Watts at 55  C    131  F    Signal Delay  On Delay  1 2 cycle On Delay  0 1 ms On Delay  0 1 ms On Delay  10 ms On Delay  10 ms   max   F Off Delay  1 2 cycle Off Delay  1 0ms Off Delay  1 0 ms Off Delay  10 ms Off Delay  10 ms  resistive load  Off State 2 mA   132V  1 0 mA 1 0 mA OmA OmA  Leakage  max    2 5 mA   265V  On State 10 mA 1 0 mA 1 0 mA 10 mA 10 mA  Current  min    On State 1 5V 0 5A 1 0V de 1 0V de Not Applicable Not Applicable  Volta
35.  worksheet F 3  system loading and heat dissipation F 1    T    terminal Glossary 8  terminal block layouts  1762 IF20F2 3 22  1762 IF4 3 24  controllers 3 7  terminal groupings 3 9  terminal groupings 3 9  throughput Glossary 8  Trim Pot Information Function File 5 7  trim pot operation 5 7  trim pots 5 7  adjustment 5 7  error conditions 5 2  location 5 1  troubleshooting C 7  contacting Rockwell Automation for assistance P 3  true Glossary 8    U    upload Glossary 8   using communications toggle push button 4 2  using emergency stop switches 2 9   using memory modules 6 1   using real time clock 6 1   using trim pots 5 7    Index 5    WwW   wiring diagram  1762 IA8 3 16  1762 IF20F2 differential sensor 3 22  1762 IF20F2 single ended sensor 3 23  1762 1016 3 17  1762 108 3 17  1762 L24AWA input 3 77  1762 L24AWA output 3 73  1762 L24BWA output 3 13  1762 L24BWA sinking 3 77  1762 L24BWA sourcing 3 12  3 14  1762 L24BXB output 3 13  1762 L24BXB sinking 3 12  1762 L24BXB sourcing 3 12  1762 L40AWA output 3 75  1762 L40BWA output 3 15  1762 L40BXB output 3 75  1762 L40BXB sinking 3 14  1762 L40BXB sourcing 3 15  1762 0A8 3 18  1762 0B16 3 19  1762 OB8 3 18  1762 OW16 3 20  1762 OW8 3 19  L1762 L40AWA input 3 73  terminal block layouts 3 7  3 22  3 24   wiring diagrams 3 7   wiring recommendation 3 1   wiring your controller 3 7   workspace Glossary 8   write Glossary 8    Publication 1762 UM001B EN P    6 Index    Publication 1762 UM001B EN P       Reach us now at www rockwel
36. 1    1       Product Type Code    10    10       Product Code       75    67        1     2    input signal      3    ground     Repeatability is the ability of the input module to register the same readi    Table A 18 Input Specifications    Specification  Number of Inputs    1762 IF20F2  2 differential  unipolar     The over  or under range flag comes on when the normal operating range  over under  is exceeded  The module  continues to convert the analog input up to the maximum full scale range        ng in successive measurements for the same    Rated working voltage is the maximum continuous voltage that can be applied at the terminals with respect to earth    1762 IF4  4 differential  bipolar           Update Time  typical  2 5 ms 130  250  290  450  530 ms   selectable   A D Converter Type Successive approximation Successive approximation       Common Mode Voltage  Rangel      27V     27V          Common Mode  gt  55 dB at 50 and 60 Hz  gt  55 dB at 50 and 60 Hz  Rejection   Non linearity  in percent   0 1   0 1     full scale        Typical Overall  Accuracy       0 5  full scale at 0 to 55  C   0 3  full scale at 25  C     0 3  full scale at 0 to 55  C   0 24  full scale at 25  C       Input Impedance    Voltage Terminal  200KQ  Current Terminal  250Q       Voltage Terminal  200KQ  Current Terminal  275Q          Table A 18 Input Specifications    Specifications    A 13       Specification 1762 IF20F2 1762 IF4  Current Input Protection   32 mA  32 mA  Voltage Input Pr
37. 1 CBL HM02               1761 CBL APOO  or 1761 CBL PMo2 4                          r    PC           lt            ZA             S    1761 CBL AP00  or 1761 CBL PM02             PC to port 1  or port 2                              AIC    3      24V de Belden  shielded  i   user supply required if Port 2 is   twisted paircable  4  T S  not connected to a controller   see table below    or 1761 CBL ACOO   1  DB 9 RS 232 port 24V de        2  mini DIN 8 RS 232 port   3  RS 485 port     4  Series C or higher cables are required     Recommended Tools     user supplied     To connect a DH485 network  you need tools to strip the shielded cable  and to attach the cable to the AIC  Advanced Interface Converter  We  recommend the following equipment  or equivalent      Table 4 3 Working with Cable for DH485 Network    Description Part Number                Manufacturer  Shielded Twisted Pair Cable   3106A or  9842 Belden  Stripping Tool 45 164 Ideal Industries  1 8    Slotted Screwdriver Not Applicable Not Applicable       Publication 1762 UM001B EN P    4 8 Communication Connections    Publication 1762 UM001B EN P    DH485 Communication Cable    The suggested DH485 communication cable is either Belden  3106A or   9842  The cable is jacketed and shielded with one or two twisted wire  pairs and a drain wire     One pair provides a balanced signal line and one additional wire is used  for a common reference line between all nodes on the network  The  shield reduces the effect of electr
38. 200 15600  AmA to 20mA  4 0mA 6240 3120  0 0mA 0 0                Publication 1762 UM001B EN P    A 14 Specifications    Controller Dimensions See Controller Mounting Dimensions on page 2 13     Expansion 1 0 See 1762 Expansion I O Dimensions on page 2 17   Dimensions    Publication 1762 UM001B EN P    MicroLogix 1200  Replacement Kits    Appendix B    Replacement Parts    Controllers Replacement Doors    Catalog Number 1762 RPLDR1    The controller door kit consists of   e Two memory module doors  e Two RS 232 communication port doors    e Two expansion bus doors    Controller Replacement Door Labels    Catalog Number 1762 RPLTLBL 1    The controller terminal door label kit consists of     e Four labels each for all available controllers    Controller Replacement DIN Latches    Catalog Number 1762 RPLDIN1    The controller DIN latch kit consists of     e Five DIN latches for controllers    Controller 40 Point Replacement Terminal Blocks    Catalog Number 1762 RPLRTB40    The 40 point controller removable terminal blocks kit consists of   e one 25 point double row terminal block       one 29 point double row terminal block     Both terminal blocks for a 40 point controller      Publication 1762 UM001B EN P    B 2 Replacement Parts    1762 Expansion   0    Publication 1762 UM001B EN P    Controller 24 Point Terminal Doors    Catalog Number 1762 RPLTDR24    The 24 point controller terminal door kit consists of   e Four terminal doors    e Four sub terminal covers    Enough door
39. 3 Hz   16 000 14 000 16 000 14 000 16 000 31 Hz                       1  This is the default setting                                                              Specifications A 5  Table A 7 Normal DC Input Filter Settings  Inputs 4 and higher   Nominal ON Delay  ms  OFF Delay  ms  Maximum  Sank  ms  Minimum Maximum   Minimum Maximum a ae  0 500 0 090 0 500 0 020 0 500 1 0 kHz  1 000 0 500 1 000 0 400 1 000 0 5 kHz  2 000 1 100 2 000 1 300 2 000 250 Hz  4 000 2 800 4 000 2 700 4 000 125 Hz  8 gog 1  5 800 8 000 5 300 8 000 63 Hz  16 000 11 000 16 000 10 000 16 000 31 Hz   1  This is the default setting   Table A 8 Relay Contact Ratings  Maximum Volts  Amperes Amperes Volt Amperes  Make Break Continuous Make Break  240V ac 7 5A 0 75A 9 5A   1800 VA 180 VA  120V ac 15A 1 5A 2 5A   1800 VA 180 VA  125V dc  2  1 0A  24V de a 2 0A a                 1  1 5A above 40  C      2  For de voltage applications  the make break ampere rating for relay contacts can be determined by dividing 28 VA by  the applied dc voltage  For example  28 VA 48V dc   0 58A  For de voltage applications less than 14V  the make break  ratings for relay contacts cannot exceed 2A     Table A 9 Working Voltage  1762 L24AWA  1762 L40AWA     1762 L24AWA  1762 L40AWA    Verified by one of the following dielectric tests  1836V ac for 1  second or 2596V dc for 1 second    265V ac Working Voltage  IEC Class 2 reinforced insulation     Description    Power Supply Input to  Backplane Isolation          Input Group to B
40. 4 16 Communication Connections    Set the DC Power Source selector switch to EXTERNAL before connecting  the power supply to the AIC   The following illustration shows where to  connect external power for the AIC      Bottom View          ATTENTION Always connect the CHS GND  chassis ground     terminal to the nearest earth ground  This connection  must be made whether or not an external 24V dc  supply is used        Power Options  Below are two options for powering the AIC      e Use the 24V dc user power supply built into the MicroLogix 1200  controller  The AIC  is powered through a hard wired connection  using a communication cable  1761 CBL HM02  or equivalent   connected to port 2     e Use an external DC power supply with the following specifications       operating voltage  24V dc   15   20        output current  150 mA minimum        rated NEC Class 2  Make a hard wired connection from the external supply to the screw terminals  on the bottom of the AIC      ATTENTION  If you use an external power supply  it must be 24V    de   15   20    Permanent damage results if  miswired with the wrong power source           Publication 1762 UM001B EN P    DeviceNet  Communications    Communication Connections 4 17    You can connect a MicroLogix 1200 to a DeviceNet network using the  DeviceNet Interface  DND  catalog number 1761 NET DNI  For additional  information on using the DNI  refer to the DeviceNet Interface User  Manual  publication 1761 6 5  The following figure shows 
41. 40 VA 1440 VA  Maximum Continuous Current   Current per Group Common BA 75A BA BA  Current per Controller  at 150V max  30A or total of per point loads  whichever is less   at 240V max  20A or total of per point loads  whichever is less   Relay Outputs  Turn On Time Turn Off Time 10 msec  minimum    Load Current 10 mA  minimum            1  scan time dependent    Table A 4 BXB FET Output Specifications    Description    Power Supply Voltage    General Operation    24V dc    15    10      High Speed Operation         Output 2 Only        On State Voltage Drop   eat maximum load current  eat maximum surge current    1V dc    2 5V de    e Not Applicable  e Not Applicable       Current Rating per Point  e maximum load   e minimum load   e maximum leakage    e See graphs below   e1 0mA  e1 0mA         100 mA    10mA    1 0mA          Maximum Output Current  temperature dependent      FET Current per Point   1762 L24BXB and L40BXB          1 5A  30  C  86  F     1 0A  55  C  131  F     Current  Amps     10C 30c 50  C 70  C   50  F   86  F   122  F   158  F   Temperature    FET Total Current     1762 L40       Current  Amps     30    86      10  C   50  F     BXB only     8A  30  C  86  F        C 50  C 70  C  F    122  F    158  F     Temperature    5 5A  55  C  131  F        Publication 1762 UM001B EN P    A 4 Specifications    Publication 1762 UM001B EN P    Table A 4 BXB FET Output Specifications                Description General Operation   High Speed Operation      Output 2 O
42. 485  specification     End of Line Termination    Jumper                 Belden  3106A or  9842 Cable NTR  1219 m  4000ft  Maximum       The AIC   catalog number 1761 NET AIC  enables a MicroLogix 1200 to  connect to a DH485 network  The AIC  has two RS 232 ports and one  isolated RS 485 port  Typically  there is one AIC  for each MicroLogix  1200  When two MicroLogix controllers are closely positioned  you can  connect a controller to each of the RS 232 ports on the AIC      The AIC  can also be used as an RS 232 isolator  providing an isolation  barrier between the MicroLogix 1200 communications port and any  equipment connected to it G e  personal computer  modem  etc       Communication Connections    4 11    The following figure shows the external wiring connections and  specifications of the AIC      Item    AIC  Advanced Interface Converter     1761 NET AIC     Description  Port 1   DB 9 RS 232  DTE                                                                                                          Port 2   mini DIN 8 RS 232 DTE       Port 3   RS 485 Phoenix plug       e  wy  N    DC Power Source selector switch   cable   port 2 power source     external   external power source connected to item 5        Terminals for external 24V dc power supply and chassis ground          For additional information on connecting the AIC   refer to the Advanced    Interface Converter  AIC   User Manual  publication 1761 6 4     Cable Selection Guide        Cable Length  1761 CBL A
43. 500 Programmable Controllers Instruction Set Reference Manual   Publication 1762 RM001C EN P for more information     Publication 1762 UM001B EN P    6 4 Using Real Time Clock and Memory Modules    Publication 1762 UM001B EN P    Data File Download Protection    The memory module supports data file download protection  This allows  user data to be saved  not overwritten  during a download     NOTE Data file download protection is only functional if the  processor does not have a fault  size of all protected data    files in the memory module exactly match the size of  protected data files within the controller  and all protected  data files are of the same type  See    Protecting Data Files  During Download    in the MicroLogix 1200 and 1500  Programmable Controllers Instruction Set Reference  Manual  Publication 1762 RMO01C EN P     Memory Module Write Protection    The memory module supports write once  read many behavior  Write  protection is enabled using your programming software     Mattei Once set  write protection cannot be removed  A change  cannot be made to the control program stored in a write    protected memory module  If a change is required  use a  different memory module        Removal Insertion Under Power    The memory module can be installed or removed at any time without risk  of damage to either the memory module or the controller  If a memory  module is installed while the MicroLogix 1200 is executing  the memory  module is not recognized until either a
44. 62 RM001C EN P     Analog outputs may fluctuate for less than a second  ATTENTION   ee  when power is applied or removed  This characteristic is    common to most analog outputs  While the majority of  loads will not recognize this short signal  it is  recommended that preventive measures be taken to  ensure that connected equipment is not affected        Publication 1762 UM001B EN P    3 22 Wiring Your Controller    1762 IF20F2 Wiring    The following illustration shows the 1762 IF2OF2 analog expansion I O  terminal block     Figure 3 29 1762 IF20F2Terminal Block Layout      Common connected    internally              Publication 1762 UM001B EN P    Wiring Your Controller 3 23    Figure 3 31 Single ended Sensor Transmitter Types    2 Wire Transmitter       Transmitter  Module    Transmitter    Supply Signal    ransmitter  Signal     1  All power supplies rated N E C  Class 2     1762 IF4 Input Type Selection    Select the input type  current or voltage  using the switches located on the  module   s circuit board and the input type range selection bits in the  Configuration Data File  Refer to MicroLogix 1200 and 1500  Programmable Controllers Instruction Set Reference Manual  publication  number 1762 RM001C EN P  You can access the switches through the  ventilation slots on the top of the module     Cho Chi Ch2 Ch3    sla imm     4 Current  ON Default                             Publication 1762 UM001B EN P    3 24 Wiring Your Controller    Figure 3 32 1762 IF4Terminal Block
45. B Terminal Screw Torque    0 791 Nm  7 in lb  rated        1  Do not allow the total load power consumed by the 5V de  24V dc  and se   2  Do not allow the total load power consumed by the 5V dc  24V dc  and se    BH See Appendix F for system validation worksheets     Publication 1762 UM001B EN P       Table A 2 Input Specifications    Description    On State Voltage  Range    1762 L24AWA  1762 L40AWA    79 to 132V ac    nsor power outputs to exceed 12W     nsor power outputs to exceed 16W     1762 L24BWA   L24BXB   L40BWA   L40BXB    Inputs 0 through 3    14 to 24V de    10  at 55  C 131  F     25  at 30  C 86  F     Inputs 4 and higher    10 to 24V de    10  at 55  C 131  F     25  at 30  C 86  F                             Off State Voltage   0 to 20V ac 0 to 5V de   Range   Operating 47 Hz to 63 Hz 0 Hz to 20 kHz 0 Hz to 1 kHz  Frequency  scan time dependent   On State Current    e minimum 5 0 mA at 79V ac 2 5 mA at 14V de   2 0 mA at 10V dc  enominal 12 mA at 120V ac e7 3 mA at 24V dc   8 9 mA at 24V dc  e maximum 16 0 mA at 132V ac   12 0 mA at 30V dc 12 0 mA at 30V dc  Off State Leakage   2 5 mA max  1 5 mA min    Current   Nominal 12KQ at 50 Hz 3 3KQ 2 7KQ  Impedance 10KQ at 60 Hz   Inrush Current 250 mA Not Applicable     max   at 120V ac                                        Specifications A 3   Table A 3 Output Specifications   General  Description 1762    L24AWA  L24BXB  L40AWA  L40BXB    L24BWA  L40BWA  Relay and FET Outputs  Maximum Controlled Load 1440 VA   14
46. Division 2  Groups A  B  C  D  or non hazardous locations only       WARNING   EXPLOSION HAZARD   AIC  must be operated from    an external power source     This product must be installed in an enclosure  All  cables connected to the product must remain in the  enclosure or be protected by conduit or other means     See Safety Considerations on page 2 4 for additional information     Installing and Attaching the AIC     1  Take care when installing the AIC  in an enclosure so that the cable  connecting the MicroLogix 1200 controller to the AIC  does not  interfere with the enclosure door     2  Carefully plug the terminal block into the RS 485 port on the AIC  you  are putting on the network  Allow enough cable slack to prevent  stress on the plug     3  Provide strain relief for the Belden cable after it is wired to the  terminal block  This guards against breakage of the Belden cable  wires     Powering the AIC     In normal operation with the MicroLogix 1200 programmable controller  connected to port 2 of the AIC   the controller powers the AIC   Any  AIC  not connected to a controller requires a 24V dc power supply  The  AIC  requires 120 mA at 24V dc     If both the controller and external power are connected to the AIC   the  power selection switch determines what device powers the AIC      ATTENTION  If you use an external power supply  it must be 24V    dc   15   20    Permanent damage results if a higher  voltage supply is used        Publication 1762 UM001B EN P    
47. E 18 Understanding the Communication Protocols    Publication 1762 UM001B EN P    Appendix F    System Loading and Heat Dissipation    System Loading When you connect MicroLogix accessories and expansion I O  an  Limitations electrical load is placed on the controller power supply  This section   shows how to calculate the load and validate that the system will not  exceed the capacity of the controller power supply     The following example is provided to illustrate system loading validation   The system validation procedure accounts for the amount of 5V dc and  24V dc current consumed by controller  expansion I O  and user supplied  equipment  Use the System Loading Worksheet on page F 3 to validate  your specific 24 point controller configuration  Use the System Loading  Worksheet on page F 8 to validate your specific 40 point controller     Current consumed by the processor  memory modules  and the real time    clock modules has already been factored into the calculations  A system is  valid if the current and power requirements are satisfied     System Loading Example Calculations  24 Point Controller        Current Loading  Table F 1 Calculating the Current for MicroLogix Accessories  Catalog Number Device Current Requirements  Calculated Current  at5V dc  mA   at24V dc  mA  lat 5V dc  mA   at24V dc  mA     oO    1761 NET AIC    when powered by the base unit communications 120 0 120  port  selector switch in the up position    Subtotal 1  0 120     1  This is an optiona
48. FET  Operating Temp   0  C to  55  C   32  F to  131  F  ambient  Storage Temp   40  C to  85  C   40  F to  185  F  ambient       Operating Humidity    5  to 95  relative humidity  non condensing        Vibration    Operating  10 to 500 Hz  5G  0 030 in  max  peak to peak  2 hours each axis    Relay Operation  1 5G       Shock       Operating  30G  3 pulses each direction  each axis    Relay Operation  7G    Non Operating  50G panel mounted  40G DIN Rail mounted   3 pulses each direction  each axis       Publication 1762 UM001B EN P    A 2 Specifications    Table A 1 General Specifications    Description    Agency Certification    1762        eUL  eC     eCl    L24AWA    508   UL under CSA C22 2 no  142   ass    Div  2  Groups A  B  C  D   UL 1604  C UL under CSA C22 2 no  213     L24BWA L24BXB L40AWA L40BWA L40BXB    e CE C Tick compliant for all applicable directives       Electrical EMC    The controller has passed testing at the following levels     elE  elE  elE    C1000 4 2  4 kV contact  8 kV air  4 kV indirect  C1000 4 3  10V m  80 to 1000 MHz  80  amplitude modulation   900 MHz keyed carrier  C1000 4 4  2 kV  5 kHz  communications cable  1 kV  5 kHz       elE    C1000 4 5  communications cable 1 kV galvanic gun    1 0  2 kV CM  common mode   1 kV DM  differential mode   AC Power Supply  4 kV CM  common  DC Power Supply  500V CM  common    e  EC1000 4 6  10V  communications cab    e3V    mode   2 kV DM  differential mode   mode   500V DM  differential mode           
49. N HAZARD    In Class I  Division 2 applications  the bus connector must  be fully seated and the bus connector cover must be  snapped in place        In Class I  Division 2 applications  all modules must be  mounted in direct contact with each other as shown on  page 2 19  If DIN rail mounting is used  an end stop must  be installed ahead of the controller and after the last 1762  I O module        Publication 1762 UM001B EN P    2 20 Installing Your Controller    Publication 1762 UM001B EN P    Chapter 3       Wiring Requirements    Wiring Your Controller    This chapter describes how to wire your controller and expansion I O   Topics include        wire requirements      using surge suppressors      grounding the controller   e wiring diagrams   e sinking and sourcing wiring diagrams  e controller I O wiring    e expansion I O wiring    Wiring Recommendation    ATTENTION    Before you install and wire any device  disconnect power  to the controller system           ATTENTION Calculate the maximum possible current in each power    and common wire  Observe all electrical codes dictating  the maximum current allowable for each wire size   Current above the maximum ratings may cause wiring to  overheat  which can cause damage     United States Only  If the controller is installed within a  potentially hazardous environment  all wiring must  comply with the requirements stated in the National  Electrical Code 501 4  b         e Allow for at least 50 mm   2 in   between I O wirin
50. N rail     1  Place a flat blade screwdriver in the DIN rail latch at the bottom of the  controller     2  Holding the controller  pry downward on the latch until the latch  locks in the open position     3  Repeat steps 1 and 2 for the second DIN rail latch   4  Unhook the top of the DIN rail slot from the rail                                                                                                        O s A  I    gt  3 kK   gt  1   gt n y    closed t  open    Panel Mounting    Mount to panel using  8 or M4 screws  To install your controller using  mounting screws     1  Remove the mounting template from inside the back cover of the  MicroLogix 1200 Programmable Controllers Installation Instructions   publication 1762 IN006C MU P     2  Secure the template to the mounting surface   Make sure your  controller is spaced properly  See Controller and Expansion I O  Spacing on page 2 13        Drill holes through the template     Remove the mounting template       Mount the controller     Av mB U      Leave the protective debris shield in place until you are finished  wiring the controller and any other devices   Debris Shield       Mounting Template                225                            Publication 1762 UM001B EN P    Installing Your Controller 2 17                                                                      1762 Expansion   0  Dimensions  A  A  Y z  ai  Table 2 2  Dimension Expansion I O Module  A 90 mm  3 5 in    B 40 mm  1 57 in    C 87 mm  3 43 in 
51. Poo 2  45 cm  17 7 in   2m  6 5 ft     1761 CBL Plo2 2                ee                                                                            1761 CBL APoo  1761 CBL PM02      Connections from to AIC    External Power  Power Supply   Selection  Required   Switch  Setting    SLC 5 03 or SLC 5 04 processors  chO   port 2 yes external  MicroLogix 1000  1200  or 1500 port 1 yes external  PanelView 550 through NULL modem   port 2 yes external  adapter  DTAM Plus   DTAM Micro port 2 yes external  PC COM port port 2 yes external                       1  External power supply required unless the AIC  is powered by the device connected to port 2  then the selection switch should be set to cable      2  Series C or higher cables are required     Publication 1762 UM001B EN P    4 12    Cable    1761 CBL Aloo2   1761 CBL Hi02 2     Communication Connections    Length    2m  6 5 ft                                                                       45 cm  17 7 in                          SS eS    See                                                                       1  External power supply required unless the AIC  is powered by the device connected to port 2  then the select     2  Series C or higher cables are required                                                                       e ge    1761 CBL HM02     1761 CBL AMoo     Connections from to AIC    External Power  Power Supply   Selection  Required   Switch Setting  MicroLogix 1000  1200  or 1500 port2   no cable  to
52. Wiring Your Controller 3 3    Wiring with Spade Lugs    The diameter of the terminal screw head is 5 5 mm  0 220 in    The input  and output terminals of the MicroLogix 1200 controller are designed for a  6 35mm  0 25 in   wide spade  standard for  6 screw for up to 14 AWG  or  a 4 mm  metric  4  fork terminal     When using spade lugs  use a small  flat blade screwdriver to pry the  finger safe cover from the terminal blocks as shown below  Then loosen  the terminal screw        Inductive load devices  such as motor starters and solenoids  require the  use of some type of surge suppression to protect and extend the  operating life of the controllers output contacts  Switching inductive loads  without surge suppression can significantly reduce the life expectancy of  relay contacts  By adding a suppression device directly across the coil of  an inductive device  you prolong the life of the output or relay contacts   You also reduce the effects of voltage transients and electrical noise from  radiating into adjacent systems     Publication 1762 UM001B EN P    3 4 Wiring Your Controller    The following diagram shows an output with a suppression device  We  recommend that you locate the suppression device as close as possible to  the load device      dc or L1    Suppression  Device        ac or dc  Outputs             dc COM or L2       If the outputs are dc  we recommend that you use an 1N4004 diode for  surge suppression  as shown below  For inductive dc load devices  a  diod
53. a table Glossary 2  default communication configuration 4 7  DeviceNet Communications 4 17  DeviceNet network  connecting 4 17  selecting cable 4 17  DF1 Full Duplex protocol  configuration parameters    2  connecting 4 2  4 3  description F 7  example system configuration E 2  using a modem 4 4  F 6  DF1 Half Duplex protocol  description    3  DH485 communication protocol  configuration parameters F 9  DH485 network  configuration parameters F 12  connecting 4 7  description E 8  devices that use the network F 9  example system configuration F 73  installation 4 7  planning considerations    70  protocol    8  token rotation F 8    Publication 1762 UM001B EN P    DIN rail Glossary 2   disconnecting main power 2 5   download Glossary 2   DTE  Data Terminal Equipment  Glossary 2    E    Electronics Industries Association  EIA  E 7   EMC Directive 2 2   EMI Glossary 2   encoder Glossary 2   error recovery model C 3   errors  configuration C 6  critical C 4  extended error information field C 5  hardware C 6  module error field C 5  non critical C 4   European Union Directive compliance 2 2  EMC Directive 2 2  low voltage directive 2 2   executing mode Glossary 2   expansion   0  1762 IF20F2 input type selection 3 20  1762 IF2OF2 output type selection 3 27   expansion   O mounting 2 17  2 18  mounting on DIN rail 2 17   expansion   0 wiring 3 76  1762 IA8 wiring diagram 3 16  1762 IF20F2 wiring 3 22  1762 IF4 terminal block layout 3 24  1762 1016 wiring diagram 3 17  1762 108 wi
54. ackplane    Isolation    Verified by one of the following dielectric tests 1517V ac for 1 second  or 2145V dc for 1 second       132V ac Working Voltage  IEC Class 2 reinforced insulation        Input Group to Input    Group Isolation    Verified by one of the following dielectric tests 1517V ac for 1 second  or 2145V dc for 1 second       132V ac Working Voltage  basic insulation        Output Group to  Backplane Isolation    Verified by one of the following dielectric tests  1836V ac for 1  second or 2596V dc for 1 second       265V ac Working Voltage  IEC Class 2 reinforced insulation        Output Group to Output    Group Isolation    Verified by one of the following dielectric tests  1836V ac for 1  second or 2596V dc for 1second          265V ac Working Voltage  basic insulation  150V ac Working Voltage   IEC Class 2 reinforced insulation         Publication 1762 UM001B EN P    A 6 Specifications    Publication 1762 UM001B EN P    Table A 10 Working Voltage  1762 L24BWA  1762 L40BWA     Description    Power Supply Input to  Backplane Isolation    1762 L24BWA  1762 L40BWA    Verified by one of the following dielectric tests 1836V ac for 1 second  or 2596V dc for 1 second       265V ac Working Voltage  IEC Class 2 reinforced insulation        Input Group to  Backplane Isolation and  Input Group to Input  Group Isolation    Verified by one of the following dielectric tests  1200V ac for 1 second  or 1697V dc for 1 second       75V de Working Voltage  IEC Class 2 reinforced
55. ading  22 00W  0 4x_ ss W  W  1762 L40BXB 27 9W    0 3 x System Loading  27 9W   0 3x___ W W  1762 1A8 2 0W x number of modules 2 0W x W  1762 108 3 7W x number of modules 3 7W x W  1762 1016 5 3W x number of modules 5 3W x W  1762 0A8 2 9W x number of modules 2 9W x W  1762 0B8 1 6W x number of modules 1 6W x W  1762 0B16 2 9W x number of modules 2 9W x W  1762 OW8 2 9W x number of modules 2 9W x W  1762 OW16 5 6W x number of modules 5 6W x W  1762 IF20F2 2 6W x number of modules 2 6W x W  1762 IF4 2 0W x number of modules 2 0W x W  Add Sub Totals to determine Heat Dissipation W    Publication 1762 UM001B EN P       Glossary       The following terms are used throughout this manual  Refer to the  Allen Bradley Industrial Automation Glossary  Publication Number  AG 7 1  for a complete guide to Allen Bradley technical terms     address   A character string that uniquely identifies a memory location  For  example  I 1 0 is the memory address for the data located in the Input file  location word1  bit 0     AIC  Advanced Interface Converter  A device that provides a communication link between various networked  devices   Catalog Number 1761 NET AIC      application   1  A machine or process monitored and controlled by a controller   2  The use of computer  or processor based routines for specific  purposes     baud rate  The speed of communication between devices  All devices must  communicate at the same baud rate on a network     bit  The smallest storage location in memory th
56. apter 4 Communication Connections for information about  required network devices and accessories     The communications port on the MicroLogix 1200 utilizes an RS 232  interface  RS 232 is an Electronics Industries Association  EIA  standard  that specifies the electrical and mechanical characteristics for serial binary  communication  It provides you with a variety of system configuration  possibilities   RS 232 is a definition of electrical characteristics  it is nota  protocol      One of the biggest benefits of an RS 232 interface is that it lets you  integrate telephone and radio modems into your control system  using the  appropriate DF1 protocol only  not DH485 protocol      DF1 Full Duplex protocol provides a point to point connection between  two devices  DF1 Full Duplex protocol combines data transparency   American National Standards Institute ANSI   X3 28 1976 specification  subcategory D1  and 2 way simultaneous transmission with embedded  responses  subcategory F1      The MicroLogix 1200 controllers support the DF1 Full Duplex protocol via  RS 232 connection to external devices  such as computers  or other    controllers that support DF1 Full Duplex     DF1 is an open protocol  Refer to DF1 Protocol and Command Set  Reference Manual  publication 1770 6 5 16  for more information     Publication 1762 UM001B EN P    E 2 Understanding the Communication Protocols    DF1 Full Duplex Operation    DF1 Full Duplex protocol  also referred to as DF1 point to point proto
57. at contains either a 1  ON  or a  0  OFF      block diagrams  A schematic drawing     Boolean operators   Logical operators such as AND  OR  NAND  NOR  NOT  and Exclusive OR  that can be used singularly or in combination to form logic statements or  circuits  Can have an output response of T or F     branch  A parallel logic path within a rung of a ladder program     communication scan  A part of the controller   s operating cycle  Communication with other  devices  such as software running on a personal computer  takes place     controller  A device  such as a programmable controller  used to monitor input  devices and control output devices     controller overhead    An internal portion of the operating cycle used for housekeeping and  set up purposes     Publication 1762 UM001B EN P    G 2 Glossary       Publication 1762 UM001B EN P    control profile  The means by which a controller determines which outputs turn on under  what conditions     counter   1  An electro mechanical relay type device that counts the occurrence of  some event  May be pulses developed from operations such as switch  closures or interruptions of light beams    2  In controllers  a software counter eliminates the need for hardware  counters  The software counter can be given a preset count value to count  up or down whenever the counted event occurs     CPU  Central Processing Unit   The decision making and data storage section of a programmable  controller     data table  The part of processor memo
58. ble F 13 Calculating the Current for MicroLogix Accessories    Catalog Number Device Current Requirements   Calculated Current  at5Vdc mA    at24Vdc  mA    at5Vdce mA    at 24V dc  mA                   1761 NET AIC    when powered by the base unit  communications port  selector switch in the up position    Subtotal 1               1  This is an optional accessory  Current is consumed only if the accessory is installed     Publication 1762 UM001B EN P    F 8 System Loading and Heat Dissipation    Table F 14 Calculating the Current for Expansion 1 0                                                 Catalog Number  n A B nxA nxB  Number of Device Current Requirements Calculated Current  Modules at 5V dc  mA  at 24V dc  mA    at5V dc  mA    at 24V dc  mA    1762 1A8 50 0   1762 108 50 0   1762 1016 60 0   1762 0A8 115 0   1762 0B8 115 0   1762 0B16 175 0   1762 OW8 80 90   1762 OW16 120 140   1762 IF20F2 40 105   1762 IF4 40 50   Total Modules  6 maximum   Subtotal 2                  1  Refer to your expansion 1 0 Installation Instructions for Current Requirements not listed in this table     Table F 15 Validating Systems using 1762 L40AWA or 1762 L40BXB    Maximum Allowable Values    Current     Calculated Values    Current  Subtotal 1 from Table F 13   Subtotal 2 from Table F 14          600 mA at 5V de 500 mA at 24V de    System Loading     System Loading        15 Watts    Publication 1762 UM001B EN P          mA x 5V     mA x 24V   E mW   mW     mW   z Ww    System Loading and
59. ble cause and  recommended action                status     Yes          Refer to page C 2 for  probable cause and  recommended action        Check power            Is an input LED  accurately showing    No       Refer to page C 2 for  probably cause and  recommended action        Publication 1762 UM001B EN P    C 4 Troubleshooting Your System    Analog Expansion 1 0  Diagnostics and  Troubleshooting    Publication 1762 UM001B EN P    Module Operation and Channel Operation    The module performs operations at two levels   e module level  e channel level    Module level operations include functions such as power up   configuration  and communication with the controller     Internal diagnostics are performed at both levels of operation  Both  module hardware and channel configuration error conditions are reported  to the controller  Channel over range or under range conditions are  reported in the module   s input data table  Module hardware errors are  reported in the controller   s I O status file  Refer to the MicroLogix 1200  and 1500 Programmable Controllers Instruction Set Reference Manual   publication 1762 RM001C EN P for more information     When a fault condition is detected  the analog outputs are reset to zero   Power up Diagnostics    At module power up  a series of internal diagnostic tests are performed     Table C 2 Module Status LED State Table       If module Indicated Corrective action    status LED is  condition    On Proper Operation   No action required   
60. c 63 Hz    2 0 mA min  at 10V de  8 0 mA nominal at 24V dc  12 0 mA max  at 30V de    2 0 mA min  at 10V de  8 0 mA nominal at 24V dc  12 0 mA max  at 30V de       Inrush Current  max      250 mA    Not Applicable    Not Applicable             Nominal Impedance 12K Q at 50 Hz 3K Q 3K Q  10K Q at 60 Hz   Power Supply Distance Rating   6  The module may not be located more than 6 modules away from the power supply     IEC Input Compatibility Type 1  Type 1  Type 1        Isolated Groups    Group 1  inputs 0 to 7  internally  connected commons     Group 1  inputs 0 to 7  internally  connected commons     Group 1  inputs 0 to 7  Group 2   inputs 8 to 15          Input Group to Backplane  Isolation    Verified by one of the following  dielectric tests  1517V ac for 1 sec   or 2145V dc for 1 sec    132V ac working voltage  IEC Class  2 reinforced insulation     Verified by one of the following diel  1697V dc for 1 sec        ectric tests  1200V ac for 1 sec  or    75V de working voltage  IEC Class 2 reinforced insulation        Vendor I D  Code    1       Product Type Code       Product Code       114    96    97           1  Sinking Sourcing Inputs   Sourcing sinking describes the current flow between the 1 0 module and the field device  Sourcing 1 0 circuits supply  source  current to sinking    field devices  Sinking 1 0 circuits are driven by a current sourcing field device  Fie       d devices connected to the negative side  DC    sinking field devices  Field devices connected
61. carrier       Fast Transient Burst  IEC1000 4 4     2 kV  5 KHz       Surge Immunity  IEC1000 4 5     2 kV common mode  1 kV differential mode          Conducted Immunity  IEC1000 4 6     10V  0 15 to 80 MHz             1  Conducted Immunity frequency range may be 150 kHz to 30 MHz if the Radiated Immunity frequency range is 30 MHz    to 1000 MHz     Publication 1762 UM001B EN P    A 8 Specifications    Table A 13 Input Specifications          Specification 1762 1A8 1762 108 1762 1016   Approximate Shipping Weight 209g  0 46 Ibs  200g  0 44 tbs  280g  05TIbs    With Carton    Voltage Category 100 120V ac 24V de  sink source     24V dc  sink source       Operating Voltage Range 79V ac to 132V ac at 47 Hz to 63 Hz  10 to 30V dc at 30  C  86  F  10 to 30V de at 30  C  86  F     10 to 26 4V de at 55  C  131  F     10 to 26 4V de at 55  C  131  F              Number of Inputs 8 8 16   Bus Current Draw  max   50 mA at 5V de  0 25W  50 mA at 5V de  0 25W  60 mA at 5V de  0 3W    Heat Dissipation  max   2 0 Watts 3 7 Watts 4 2 Watts at 26 4V  5 3 Watts at 30V       Signal Delay  max      On Delay  20 0 ms  Off Delay  20 0 ms    On Delay  8 0 ms  Off Delay  8 0 ms    On Delay  8 0 ms  Off Delay  8 0 ms             Off State Voltage  max   20V ac 5V de 5V de  Off State Current  max   2 5mA 1 5 mA 1 5 mA  On State Voltage  min   79V ac  min   132V ac  max   10V de 10V de       On State Current    5 0 mA  min   at 79V ac 47 Hz  12 0 mA  nominal  at 120V ac 60 Hz  16 0 mA  max   at 132V a
62. cause    e Calculated Current Values  lt  Maximum Allowable Current Values       Calculated System Loading  lt  Maximum Allowable System Loading    Table F 11 Validating Systems using 1762 L40AWA or 1762 L40BXB    Maximum Allowable Values    Current     Calculated Values    Current  Subtotal 1 from Table F 9   Subtotal 2 from Table F 10         B 600 mA at SV de  B System Loading     500 mA at 24V de 0 mA  395 mA   395 mA at 5V de 120 mA   245 mA   365 mA at 24V de    System Loading        15 Watts    Publication 1762 UM001B EN P       395 mA x 5V     365 mA x 24V      1975 mW     8760 mW      10 735 mW     10 74 Watts    System Loading and Heat Dissipation F 7    Table F 12 Validating Systems using 1762 L40BWA    Maximum Allowable Values Calculated Values    Current for Devices Connected to the  24V de   Sum of all current sensors             Sensor Supply   400 mA at 24V de 150 mA at 24V dc  example sensor value   Current for MicroLogix Accessories and Current  Subtotal 1 from Table F 9   Subtotal 2 from Table F 10    Expansion I 0   600 mA at 5V de 500 mA at 24V de 0 mA   395 mA   395 mA at 5V de 120 mA   245 mA   365 mA at 24V de  System Loading  System Loading      150 mA x 24V     395 mA x 5V     365 mA x 24V      3600 mW     1975 mW     8760 mW     14335 W  16 Watts   14 34 Watts  System Loading The tables below are provided for system loading validation  See System    Loading Example Calculations  40 Point Controller  on page F 5     Worksheet    Current Loading    Ta
63. col   is useful where RS 232 point to point communication is required  DF1  protocol controls message flow  detects and signals errors  and retries if  errors are detected     When the system driver is DF1 Full Duplex  the following parameters can  be changed     Table E 1 DF1 Full Duplex Configuration Parameters                                  Parameter Options Default  Baud Rate 300  600  1200  2400  4800  9600  19 2K  38 4K 19 2K  Parity none  even none  Source ID  Node Address  0 to 254 decimal 1   Control Line no handshaking  Full Duplex modem handshaking no handshaking  Error Detection CRC  BCC CRC  Embedded Responses auto detect  enabled auto detect  Duplicate Packet  Message  Detect enabled  disabled enabled  ACK Timeout 1 to 65535 counts  20 ms increments  50 counts  NAK retries 0 to 255 3 retries  ENQ retries 0 to 255 3 retries  Stop Bits not a setting  always 1 1             Example DF1 Full Duplex Connections    For information about required network connecting equipment  see  chapter 3  Connecting the System   1761 CBL AM00 or 1761 CBL HM02    Personal Computer       Je             EES                                           E MicroLogix 1200     Optical  Personal Computer IMT 5  Isolator             b   M Modem cable  EEE Cp                     icroLogix 1200                                     We recommend using an AIC   catalog number 1761 NET AIC  as your  optical isolator     Publication 1762 UM001B EN P    DF1 Half Duplex  Protocol    Understanding the C
64. croLogix 1200 controllers can initiate MSG instructions to  devices on the DH  network     e PC can send read and write commands to MicroLogix 1200 controllers     e PC can do remote programming of MicroLogix 1200 controllers     AIC  AIC                        PanelView     iif  a   m  a                      ie  I        O00              0 0000                    PanelView 550                                      SLC 5 04         DH485 Network       AIC  AIC                       e    i         fe  ul                SLC 5 04         MicroLogix 1000 MicroLogix 1200 MicroLogix 1500       DH  Network                Personal Computer SLC 5 04 PLC 5    Publication 1762 UM001B EN P    E 16    Understanding the Communication Protocols    Modbus Communication Modbus is a Half Duplex  master slave communications protocol  The  Modbus network master reads and writes coils and registers     Protocol    Modbus protocol allows a single master to communicate with a maximum  of 255 slave devices     For more information on the MicroLogix 1200 configuration parameters  for Modbus Slave RTU  Remote Terminal Unit transmission mode   protocol  refer to the MicroLogix 1200 and 1500 Programmable  Controllers Instruction Set Reference Manual  publication  1762 RMO001C EN P  For more information about the Modbus Slave  protocol  see the Modbus Protocol Specifications  available from http       www modicon com techpubs     Table E 5 Modbus to MicroLogix Memory Map                      Modbus Addres
65. dems  or the DH485 network for data 1746 RMO001A US P  collection   1785 KAS DH  M DH485  1771   PLC   Provides communication between stations on the PLC 5    DH    1785 6 9 5  Gateway Chassis and SLC 500  DH485  networks  Enables communication and data   1785 1 21  transfer from PLC   to SLC 500 on DH485 network  Also enables  programming software programming or data acquisition across  DH  to DH485   2760 RB Flexible Interface   1771 PLC       Provides an interface for SLC 500  using protocol cartridge 1747 KE  Module Chassis 2760 SFC3  to other A B PLCs and devices  Three configurable   2760 ND001  channels are available to interface with Bar Code  Vision  RF   Dataliner     and PLC systems   1784 KTX  PC DH485 IM IBM XT AT   Provides DH485 using RSLinx  1784 6 5 22   KTXD Computer  Bus  1784 PCMK  PCMCIA IM PCMCIA slot   Provides DH485 using RSLinx  1784 6 5 19  in computer  and  Interchange  1747 PT1 Hand Held NA Provides hand held programming  monitoring  configuring  and   1747 NP002  Terminal troubleshooting capabilities for SLC 500 processors                    Publication 1762 UM001B EN P    E 10    Understanding the Communication Protocols    Table E 4 Allen Bradley Devices that Support DH485 Communication    Catalog  Number    Description    Installation    Function    Publication       1747 DTAM   2707 L8P1    L8P2   L40P1    L40P2    V40P1    V40P2    V40P2N    M232P3  and   M485P3    DTAM  DTAM Plus   and DTAM Micro  Operator  Interfaces    Panel Mount    Provi
66. des electronic operator interface for SLC 500 processors     1747 6 1  2707 800   2707 803       2711 K5A2    B5A2   K5A5    B5A5   K5A1    B5A1   K9AZ    T9A2   K9A5    T9A5   K9A1   and  T9A1       PanelView 550 and  PanelView 900  Operator Terminals       Panel Mount       Provides electronic operator interface for SLC 500 processors        2711 802  2711 816       Publication 1762 UM001B EN P    NA   Not Applicable    Important DH485 Network Planning Considerations    Carefully plan your network configuration before installing any hardware   Listed below are some of the factors that can affect system performance     e amount of electrical noise  temperature  and humidity in the network  environment    e number of devices on the network    e connection and grounding quality in installation    e amount of communication traffic on the network       type of process being controlled    e network configuration    The major hardware and software issues you need to resolve before  installing a network are discussed in the following sections     Understanding the Communication Protocols E 11    Hardware Considerations    You need to decide the length of the communication cable  where you  route it  and how to protect it from the environment where it will be  installed     When the communication cable is installed  you need to know how many  devices are to be connected during installation and how many devices  will be added in the future  The following sections help you understand 
67. dley representative if   LEDs on the error persists    eae Loose Wiring Verify connections to the  controller    Power LED   Application fault Hardware Software   For error codes and Status File   on and Major Fault Detected   information  see MicroLogix   FAULT LED 1200 and 1500 Programmable   flashing Controllers Instruction Set  Reference Manual  Publication  1762 RMO001C EN P    RUN Operating system Missing or Corrupt See Missing Corrupt OS LED   FORCE fault Operating System Pattern on page D 2    FAULT   LEDs all   flashing                Troubleshooting Your System  C 3       Controller Error  Recovery Model         Identify the error code and  description        Refer to page C 2 for  probable cause and  recommended action           Clear Fault        Correct the condition  causing the fault        Return controller to RUN or  any of the REM test modes     Test and verify system  operation           Use the following error recovery model to help you diagnose software  and hardware problems in the micro controller  The model provides  common questions you might ask to help troubleshoot your system  Refer  to the recommended pages within the model for further help        Is the error  hardware related          Are the wire  connections tight          Yes    Is the Power No    LED on            Yes    Is the RUN No    LED on           Yes       Is the Fault  LED on                  Does the  controller have  power supplied     No        Yes    Refer to page C 2 for  proba
68. e is suitable  A 1N4004 diode is acceptable for most applications  A  surge suppressor can also be used  See Table 3 2 for recommended  suppressors  As shown below  these surge suppression circuits connect  directly across the load device     24V dc       Relay or Solid  State dc Outputs    A IN4004 Diode    A surge suppressor  can also be used            24V dc common       Suitable surge suppression methods for inductive ac load devices include  a varistor  an RC network  or an Allen Bradley surge suppressor  all shown  below  These components must be appropriately rated to suppress the  switching transient characteristic of the particular inductive device  See the  table on page 3 5 for recommended suppressors     Surge Suppression for Inductive ac Load Devices    Output Device Output Device Output Device             Surge  Suppressor                Varistor RC Network    Publication 1762 UM001B EN P    Wiring Your Controller 3 5    Recommended Surge Suppressors    Use the Allen Bradley surge suppressors shown in the following table for  use with relays  contactors  and starters     Table 3 2 Recommended Surge Suppressors                                                          Device Coil Voltage Suppressor Catalog  Number  Bulletin 509 Motor Starter 120V ac 599 K04     Bulletin 509 Motor Starter 240V ac 599 KAg4     Bulletin 100 Contactor 120V ac 199 FSMA1 2   Bulletin 100 Contactor 240V ac 199 FSMA 212  Bulletin 709 Motor Starter 120V ac 1401 N10 2  Bulletin 700 Type R 
69. e product must remain in the  enclosure or be protected by conduit or other means     e All wiring must comply with N E C  article 501 4 b         Use only the following communication cables in Class I  Division 2  hazardous locations     Communication Cables  1761 CBL PMO02 Series C or later  1761 CBL HM02 Series C or later  1761 CBL AMO0 Series C or later  1761 CBL APOO Series C or later  2707 NC8 Series A or later  2707 NC9 Series B or later  2707 NC10 Series B or later  2707 NC11 Series B or later    Environment Classification  Class    Division 2 Hazardous Environment                               Installing Your Controller 2 5       Disconnecting Main Power      WARNING   Explosion Hazard   Do not replace components or    disconnect equipment unless power has been switched  off           The main power disconnect switch should be located where operators  and maintenance personnel have quick and easy access to it  In addition  to disconnecting electrical power  all other sources of power  pneumatic  and hydraulic  should be de energized before working on a machine or  process controlled by a controller     Safety Circuits    Explosion Hazard   Do not connect or disconnect  connectors while circuit is live           Circuits installed on the machine for safety reasons  like overtravel limit  switches  stop push buttons  and interlocks  should always be hard wired  directly to the master control relay  These devices must be wired in series  so that when any one device open
70. e same time  a brief sag in the  power source voltage typically will not affect any equipment     Preventing Excessive  Heat    Installing Your Controller 2 7    Loss of Power Source    The power supply is designed to withstand brief power losses without  affecting the operation of the system  The time the system is operational  during power loss is called    program scan hold up time after loss of  power     The duration of the power supply hold up time depends on the  type and state of the I O  but is typically between 10 milliseconds and 3  seconds  When the duration of power loss reaches this limit  the power  supply signals the processor that it can no longer provide adequate dc  power to the system  This is referred to as a power supply shutdown  The  processor then performs an orderly shutdown of the controller     Input States on Power Down    The power supply hold up time as described above is generally longer  than the turn on and turn off times of the inputs  Because of this  the  input state change from    On    to    Off    that occurs when power is removed  may be recorded by the processor before the power supply shuts down  the system  Understanding this concept is important  The user program  should be written to take this effect into account     Other Types of Line Conditions    Occasionally the power source to the system can be temporarily  interrupted  It is also possible that the voltage level may drop substantially  below the normal line voltage range for
71. e serado a en BR REE ese an ea 2 2  Low Voltage Directive      nnna aana 2 2  Installation Considerations      n a aaa a 2 3  Safety Considerations      cows 4 dete hte Mb arene 4 de  09 des 2 4  Hazardous Location Considerations                 2 4  Disconnecting Main Power  s 664 KOE ee EO hs ees 2 5  Safety CUCUS a L y asas ee a E EE bnih 2 5  Power Distribution  4 5 4553 aa aaa 2 5  Periodic Tests of Master Control Relay Circuit          2 6  Power Considerations       o oo uaaa 2 6  Isolation Transformers    2 0 0 0    00000 ee eee eae 2 6  Power Supply Inrush m0 isk bia ee tha ee 2 6  Loss of Power Source  Ki  mad pee Ua Pek OE OES Ea 2 7  Input States on Power Down                  0   2 7  Other Types of Line Conditions       n a aaas 2 7  Preventing Excessive Heatiios   iui  oes gee PAS a 2 7  Master Control Relay    onana aaa 2 8  Using Emergency Stop Switches                   2 9  Schematic  Using IEC Symbols           0   04004  2 10  Schematic  Using ANSI CSA Symbols                2 11  Installing a Memory Module and or Real Time Clock       2 12  Controller Mounting Dimensions                     2 13  Controller and Expansion I O Spacing                 2 13    Publication 1762 UM001B EN P    Table of Contents ii    Wiring Your Controller    Communication Connections    Publication 1762 UM001B EN P    Mounting the Controller     nanao aaao 2 14  DIN Rail Mounting    aaua aaa 2 15  Panel MOUntne seiss ae r a tae N a Senay 2 16   1762 Expansion I O Dimensions  
72. ed to port 2  then the selec       2 EE  eS g  SS        176 1  CBL ASOS q i  1761 CBL AS03     Connections from to AIC    External Power  Power Supply   Selection  Required     Switch  Setting     SLC 500 Fixed  port3   yes external  SLC 5 01  SLC 5 02  and SLC 5 03  processors  PanelView 550 RJ45 port port3   yes external  ion switch should be set to cable     1761 CBL PM02 Series C  or equivalent  Cable Wiring Diagram                                                                                                                                                                                                                                                                            Programming Controller  Device  9 Pin D Shell 8 Pin Mini Din  9 RI 24V 1  8 CTS ke  gt  GND 2  7 RTS RTS 3  6 DSR PE a RXD 4  5 GND P DCD 5  4 DTR 5l CTS 6  3 TXD TXD 7  2 RXD GND 8  q          1 DCD le  o cl 1761 CBL PM02 Series C or later Cable   9 ee het   4    8 l  Ean    i i  6 TESH 8 pin Mini Din   fo   io    9 pin D shell 678  3 Fh  5  4    Publication 1762 UM001B EN P    4 14 Communication Connections    Recommended User Supplied Components    These components can be purchased from your local electronics supplier     Table 4 6 User Supplied Components          Component Recommended Model  NULL modem adapter standard AT  straight 9 25 pin RS 232 cable see table below for port information if       making own cables                                                                              
73. er Program and Data Back up                   6 3  Pr  gram  Compare sa  gt  eavew 6445 thy ww Age 8 whl Boo oe 6 3  Data File Download Protection     ga ruses See tee 6 4  Memory Module Write Protection                   6 4  Removal Insertion Under Power              0005 6 4  Appendix A  Controller Specifications hic at addin ee RG DRAKE LY A 1  Expansion I O Specifications  0 4  j atig bod ae gS We ed A 7  Discrete I O Modules  5 64 48 ps RO pO BS AS Sets A 7  Analog Modules  3c aG we ee ae 2 ha eA ae A 11  Controller Dimensions  ga drain ewe ce  eae SR A 14  Expansion  I O Dimensions      naasa aaaea A 14  Appendix B  MicroLogix 1200 Replacement Kits                    B 1  Controllers Replacement Doors                004  B 1  Controller Replacement Door Labels                B 1  Controller Replacement DIN Latches                B 1  Controller 40 Point Replacement Terminal Blocks       B 1  Controller 24 Point Terminal Doors                 B 2  Controller 40 Point Terminal Doors                 B 2   762 Exp  nsion O sy 56s wente Gs hiya ika ath a B 2  Expansion I O Replacement Doors                 B 2  Expansion I O Replacement DIN Latches            B 2  Expansion I O Replacement Door Labels             B 2    Publication 1762 UM001B EN P    Table of Contents iv    Troubleshooting Your System    Using Control Flash to Upgrade  Your Operating System    Understanding the  Communication Protocols    Publication 1762 UM001B EN P    Appendix C   Understanding the Contr
74. er contains a  power supply  input and output circuits  and a processor  The controller is    available in 24 I O and 40 I O configurations     The hardware features of the controller are                    Table 1 1 Hardware Features                         Feature   Description Feature   Description  1 Terminal Blocks 7 Terminal Doors and Labels   Removable Terminal Blocks  1762 L40xWA and  1762 L40BXB  only   2 Bus Connector Interface to 8 Trim Pots  Expansion 1 0  3 Input LEDs 9 Communications Toggle Push  Button  4 Output LEDs 10 Memory Module Port Cover    or   Memory Module and or  Real Time Clock      5 Communication Port  11 DIN Rail Latches  Channel 0  6 Status LEDs                 1  Shipped with controller      2  Optional equipment     Publication 1762 UM001B EN P    1 2 Hardware Overview    Table 1 2 Controller Input Power and Embedded 1 0                            Catalog Description  Number Input Power   Inputs Outputs  T762 L24AWA  120 240Vac   14 120Vac  MWMOreay Ss  itettt        lt    s  st    S  1762 L24BWA  120 240V ac   10  24V de  10  relay   4  fast 24V de  1762 L24BXB  24V de  10  24V dc  5  relay   4  24V dc FET   4  fast 24V dc  1  high speed 24V dc FET  1762 L40AWA  120 240Vac   24  120V ac  16  relay  1762 L40BWA  120 240Vac   20  24V de  16  relay   4  fast 24V dc  1762 L40BXB  24V dc  20  24V dc  8  relay   7  24V dc FET   4  fast 24V dc  1  high speed 24V dc FET                Component Descriptions MicroLogix 1200 Memory Module and or Real T
75. f Rockwell Automation  is    prohibited     Throughout this manual we use notes to make you aware of safety  considerations     Identifies information about practices or  ATTENTION Ja 3 ka  circumstances that can lead to personal injury or    death  property damage or economic loss          Attention statements help you to     e identify a hazard  e avoid a hazard    e recognize the consequences       IMPORTANT Identifies information that is critical for successful  application and understanding of the product        MicroLogix  ControlFlash  RSLogix  and RSLinx are trademarks of Rockwell Automation   PLC 5 is a registered trademark of Rockwell Automation    Belden is a trademark of Belden  Inc    DeviceNet is a trademark of The Open DeviceNet Vendors Association    Modbus is a trademark of Modicon  Inc     Summary of Changes       The information below summarizes the changes to this manual since  the last printing     To help you find new and updated information in this release of the  manual  we have included change bars as shown to the right of this  paragraph     The table below lists the sections that document new features and  additional or updated information about existing features              For this information See   1762 L24BXB  1762 L40BXB controllers  description page 1 2  wiring pages 3 8 and 3 8  3 12 through 3 15  specifications Appendix A   Expansion   0  new module descriptions page 1 3  wiring diagrams for new modules pages 3 17 through 3 20  and 3 24  ex
76. g Input Wiring Diagram   DCb     DCa  DCb             issih AEREE    Figure 3 19 1762 L40AWA and 1762 L40BWA Output Wiring Diagram                                                       Lid Lif  L2a L2c Lad   J  J  L2  Pa   cr      a  vac   vac   OUT our out   vac   out   out out   vac   out   ouT  Lt NEUT  0 2  oc3  5   7 24 10  oc5   13   15  vac   vac vac   out   OUT  out   vac   out   outl our  out  poolpcei ocz2  3   4  6 oca  9   1 42  44                                                      F    L2d L2e L2f  Lia Lib Lic Lie                      Figure 3 20 1762 L40BXB Output Wiring Diagram     DCa  DCb  DCc  _pCd 4DCe        DC        DCa  DCb     DCc  DCd    Publication 1762 UM001B EN P    3 16 Wiring Your Controller    Controller 1 0 Wiring    Expansion 1 0 Wiring    Publication 1762 UM001B EN P    Minimizing Electrical Noise    Because of the variety of applications and environments where controllers  are installed and operating  it is impossible to ensure that all  environmental noise will be removed by input filters  To help reduce the  effects of environmental noise  install the MicroLogix 1200 system in a  properly rated  i e  NEMA  enclosure  Make sure that the MicroLogix 1200  system is properly grounded     A system may malfunction due to a change in the operating environment  after a period of time  We recommend periodically checking system    operation  particularly when new machinery or other noise sources are  installed near the Micrologix 1200 system     D
77. g ducts or terminal  strips and the controller     e Route incoming power to the controller by a path separate from the  device wiring  Where paths must cross  their intersection should be  perpendicular     NOTE Do not run signal or communications wiring and power    wiring in the same conduit  Wires with different signal  characteristics should be routed by separate paths     Publication 1762 UM001B EN P    3 2 Wiring Your Controller    Publication 1762 UM001B EN P    e Separate wiring by signal type  Bundle wiring with similar electrical    characteristics together     e Separate input wiring from output wiring     e Label wiring to all devices in the system  Use tape  shrink tubing  or  other dependable means for labeling purposes  In addition to  labeling  use colored insulation to identify wiring based on signal  characteristics  For example  you may use blue for de wiring and red  for ac wiring     Table 3 1 Wire Requirements       Wire Type Wire Size  2 wire maximum per terminal screw   Solid Cu 90  C  194  F   14 to  22 AWG  Stranded Cu 90  C  194  F   16 to  22 AWG             Wiring torque   0 791 Nm  7 in lb  rated    Wiring without Spade Lugs    When wiring without spade lugs  it is recommended to keep the  finger safe covers in place  Loosen the terminal screw and route the wires  through the opening in the finger safe cover  Tighten the terminal screw  making sure the pressure plate secures the wire              Finger Safe Cover    Using Surge  Suppressors    
78. ge Drop   maximum   Continuous 0 25 A   55  C  131  F  0 5A at 55  C  131  F   0 5A at 55  C  131  F   2 5 A  Also see    Relay Contact Ratings    on  Current per    _ 0 5A   30  C  86  F  1 0A at 30  C  86  F   1 0A at 30  C  86  F   page A 5    Point  max    Continuous 1 0 A   55  C  131  F  4 0A at 55  C  131  F   4 0A at 55  C  131  F  18A 8A  Current per  2 0 A   30  C  86  F  8 0A at 30  C  86  F   8 0A at 30  C  86  F   Common  max    Continuous 2 0 A   55  C  131  F  4 0 A at 55  C  4 0A at 55  C  131  F  116 A 16A  Current per 4 0 A   30  C  86  F  8 0 A at 30  C 8 0A at 30  C  86  F   Module  max    Surge Current  5 0 A  Repeatability is 2 0A  Repeatability is  2 0A  Repeatability is  See    Relay Contact Ratings    on page A 5     maximum     once every 2 seconds for a  duration of 25 msec        once every 2 seconds  at 55  C  131  F   once  every second at 30  C   86  F  for a duration of  10 msec         once every 2 seconds  at 55  C  131  F   once  every second at 30  C   86  F  for a duration of  10 msec            Power Supply  Distance  Rating       6  The module may not be more than 6 modules away from the power supply         Publication 1762 UM001B EN P    A 10    Specifications    Table A 14 Output Specifications                              Specification  1762 0A8 1762 0B8 1762 0B16 1762 OW8 1762 OW16  Isolated Group 1  Outputs Oto 3   Group 1  Outputs O to  Group 1  Outputs 0 to  Group 1  Outputs 0 to  Group 1  Outputs 0 to  Groups Group 2  Outputs 4t
79. he value in the corresponding Trim Pot Information  TPD register   The data value of each trim pot can be used throughout the control  program as timer  counter  or analog presets depending upon the  requirements of the application     The trim pots are located below the memory module port cover and to  the right of the communications port  as shown below     Trim Pot 0          Trim Pot 1                      Use a small flathead screwdriver to turn the trim pots  Adjusting their  value causes data to change within a range of 0 to 250  fully clockwise    The maximum rotation of each trim pot is three quarters  as shown below   Trim pot stability over time and temperature is typically  2 counts    4  Minimum    Z    Maximum        fully counterclockwise   _       _    ZIN    Trim pot file data is updated continuously whenever the controller is  powered up     Trim Pot Information Function File    The composition of the Trim Pot Information  TPI  Function File is  described in the MicroLogix 1200 and 1500 Programmable Controllers  Instruction Set Reference Manual  publication 1762 RM001C EN P     Publication 1762 UM001B EN P    5 2 Using Trim Pots    Error Conditions    Error conditions of the TPI Function File are described in the MicroLogix  1200 and 1500 Programmable Controllers Instruction Set Reference  Manual  publication 1762 RM001C EN P     Publication 1762 UM001B EN P    Chapter 6       Real Time Clock  Operation    Using Real Time Clock and Memory Modules    NOTE For
80. ically  you do not need to program the master to move data  between slave nodes  This slave to slave transfer can also be used by  programming software to allow slave to slave upload and download  programs to processors  including the master  on the DF1 Half Duplex  link     The MicroLogix 1200 can only act as a slave device  A device that can act  as a master is required to    run    the network  Several Allen Bradley  products support DF1 Half Duplex master protocol  They include the  SLC 5 03    and higher processors  enhanced PLC 5   processors and  Rockwell Software RSLinx  version 2 x and higher      DF1 Half Duplex supports up to 255 devices  address 0 to 254  with  address 255 reserved for master broadcasts  The MicroLogix 1200 supports  broadcast reception  The MicroLogix 1200 also supports Half Duplex  modems using RTS CTS hardware handshaking     Publication 1762 UM001B EN P    E 4 Understanding the Communication Protocols    When the system driver is DF1 Half Duplex Slave  available parameters  include     Table E 2 DF1 Half Duplex Configuration Parameters                Parameter Options   Baud Rate 300  600  1200  2400  4800  9600  19 2K  38 4K  Parity none  even   Source ID  Node Address  0 to 254 decimal   Control Line no handshaking  handshaking   Error Detection CRC  BCC       EOT Suppression    enabled  disabled  When EOT Suppression is enabled  the slave does not respond when polled if no message is queued  This  saves modem transmission power and time whe
81. ications  related P 2  purpose of this manual P 7    read Glossary 6  real time clock  battery operation 6 2  disabling 6 2  operation 6 7  removal installation under power 6 1  writing data 6 2  related documentation P 2  related publications P 2  relay Glossary 6  relay logic Glossary 6  relays  surge suppressors for 3 5  remote packet support F 15    Publication 1762 UM001B EN P    replacement parts B 7   reserved bit Glossary 7   restore Glossary 7   retentive data Glossary 7   Rockwell Automation support P 3  local product support P 3  questions or comments on this manual P 3  technical product assistance P 3   RS 232 Glossary 7   RS 232 communication interface E 7   run mode Glossary 7   rung Glossary 7    S    safety circuits 2 5  safety considerations 2 4  disconnecting main power 2 5  hazardous location 2 4  master control relay circuit  periodic tests 2 6  periodic tests of master control relay circuit 2 6  power distribution 2 5  safety circuits 2 5  save Glossary 7  scan time Glossary 7  sinking Glossary 7  sinking and sourcing wiring diagrams 3 70  sinking wiring diagram  1762 24BWA 3 11  sourcing Glossary 7  sourcing wiring diagram  1762 24BWA 3 12  specifications A 7  status Glossary 7  surge suppressors  for contactor 3 5  for motor starters 3 5  for relays 3 5  recommended 3 5  using 3 3  system configuration  DF1 Full Duplex examples    2  DF1 Half Duplex examples F 4  DH485 connection examples F 13  system loading  example calculations F 7  limitations F 7 
82. ices  you may enhance performance by  adjusting the maximum node address of your controllers  It should be set  to the highest node address being used     IMPORTANT All devices should be set to the same maximum node  address     Example DH485 Connections    The following network diagrams provide examples of how to connect  MicroLogix 1200 controllers to the DH485 network using the Advanced  Interface Converter  AIC   catalog number 1761 NET AIC   For more  information on the AIC   see the Advanced Interface Converter and  DeviceNet Interface Installation Instructions  Publication 1761 5 11     Publication 1762 UM001B EN P    E 14 Understanding the Communication Protocols    DH485 Network with a MicroLogix 1200 Controller       MicroLogix  1200                            connection from port 1 or  port 2 to MicroLogix    1761 CBL APOO or  1761 CBL PM02          1761 CBL AMO0 or  1761 CBL HM02           1  DB 9 RS 232 port   2  mini DIN 8 RS 232 port     24V dc user supply     3  RS 485 port       a N  x d      connection from port 1  or port 2 to PC                         1761 CBL AP00 or  1761 CBL PM02                               AlC   opga  T 1747 CP3 or  1  9  1761 CBL ACO0   24V dc user supply          DH485    NOTE Series C or higher cables are required     Typical 3 Node Network          PanelView 550                                                                                                                           PanelView MicroLogix 1200  a  OL   neo 1761 CBL
83. ime Clock    Publication 1762 UM001B EN P    The controller is shipped with a memory module port cover in place  You  can order a memory module  real time clock  or memory module and  real time clock as an accessory                 Table 1 3 Memory Module and or Real Time Clock    Catalog Number Descriptions    1762 MM1    Memory Module only       1762 RTC    Real Time Clock only       1762 MM1RTC       Memory Module and Real Time Clock       1762 Expansion 1 0    Hardware Overview 1 3    1762 expansion I O can be connected to the MicroLogix 1200 controller     as shown below     NOTE A maximum of six I O modules  in certain combinations     may be connected to a controller  See Appendix F System  Loading and Heat Dissipation to determine valid  combinations     1762 Expansion 1 0                   Table 1 4 Expansion 1 0    1762 Expansion 1 0 Connected to MicroLogix 1200 Controller                                        Catalog Number Descriptions   1762 1A8 8 Point 120V ac Input   1762 108 8 Point Sink Source 24V dc Input   1762 1016 16 Point Sink Source 24V de Input   1762 0A8 8 Point AC Triac Output   1762 0B8 8 Point Sourcing 24V dc Output   1762 0B16 16 Point Sourcing 24V de Output   1762 OW8 8 Point AC DC Relay Output   1762 OW16 16 Point AC DC Relay Output   1762 IF20F2 2 Channel Analog Voltage Current Input  2 Channel Analog Voltage Current Output   1762 IF4 4 Channel Analog Voltage Current Input          Publication 1762 UM001B EN P    1 4 Hardware Overview    Commu
84. information about communicating     Table 4 1 DF1 Full Duplex Default Configuration Parameters                Parameter Default   Baud Rate 19 2K   Parity none   Source ID  Node Address  1   Control Line no handshaking  Stop Bits 1          Publication 1762 UM001B EN P    4 2 Communication Connections    Using the  Communications Toggle  Push Button    Connecting to the  RS 232 Port    Publication 1762 UM001B EN P    The Communications Toggle Push Button is located on the processor  under the processor door  if installed   as shown below     Use the Communications Toggle Push Button to change from the  user defined communication configuration to the default communications  mode and back  The Default Communications  DCOMM  LED operates to  show when the controller is in the default communications mode  settings  shown on page 4 1                    A  7S       D  AUIS       Y                      Communications Toggle  Push Button          NOTE The Communication Toggle Push Button must be pressed  and held for one second to activate     There are two ways to connect the MicroLogix 1200 programmable  controller to your personal computer using the DF1 protocol  using a  point to point connection  or using a modem  Descriptions of these  methods follow     referenced to controller ground  or be floating  not    referenced to a potential other than ground   Failure to  follow this procedure may result in property damage or  personal injury        For 1762 L24BWA and 1762 L40BWA co
85. ing package used to develop ladder diagrams     protocol  The packaging of information that is transmitted across a network     read  To acquire data from a storage place  For example  the processor READs  information from the input data file to solve the ladder program     relay  An electrically operated device that mechanically switches electrical  circuits     relay logic  A representation of the program or other logic in a form normally used for  relays     Glossary G 7       restore  To download  transfer  a program from a personal computer to a  controller     reserved bit  A status file location that the user should not read or write to     retentive data  Information associated with data files  timers  counters  inputs  and  outputs  in a program that is preserved through power cycles     RS 232   An EIA standard that specifies electrical  mechanical  and functional  characteristics for serial binary communication circuits  A single ended  serial communication interface     run mode   This is an executing mode during which the controller scans or executes  the ladder program  monitors input devices  energizes output devices  and  acts on enabled I O forces     rung   Ladder logic is comprised of a set of rungs  A rung contains input and  output instructions  During Run mode  the inputs on a rung are evaluated  to be true or false  If a path of true logic exists  the outputs are made true   If all paths are false  the outputs are made false     save  To upload  transfe
86. input group s COM    terminal        INGAaMRATI  Ee The 24V dc sensor power source must not be used to  power output circuits  It should only be used to power    input devices  e g  sensors  switches   See Master Control  Relay on page 2 8 for information on MCR wiring in    output circuits     Wiring Your Controller 3 11    1762 L24AWA  1762 L24BWA and 1762 L24BXB Wiring Diagrams    NOTE In the following diagrams  lower case alphabetic  subscripts are appended to common terminal connections  to indicate that different power sources may be used for    different isolated groups  if desired     Figure 3 7 1762 L24AWA Input Wiring Diagram  1     edi            L2a   Llae Lib              1     NC    terminals are not intended for use as connection points     Figure 3 8 1762 L24BWA Sinking Input Wiring Diagram     DCb            24   vac   ma ma feomaf ms  wa   ws es  A COM Oj IN1  IN3 IN6 IN 10   IN 12  COM     DCa               Publication 1762 UM001B EN P    3 12 Wiring Your Controller    Figure 3 9 1762 L24BWA Sourcing Input Wiring Diagram     DCb       24V de Sensor Power     24  VDC             DC  DCa  DCa    Figure 3 10 1762 L24BXB Sinking Input Wiring Diagram    NOT  NOT    Figure 3 11 1762 L24BXB Sourcing Input Wiring Diagram     DCa  DCb          DCa 4DCa     DCa  DCb                 DCa  DCa    Publication 1762 UM001B EN P    Wiring Your Controller 3 13    Figure 3 12 1762 L24AWA and 1762 L24BWA Output Wiring Diagram     DCa_ L2a L2b Lic L2c  L2d       L2    L1       
87. input power wiring     Publication 1762 UM001B EN P    2 10 Installing Your Controller    Schematic  Using IEC Symbols                                                                                                                          L1 L2  230V ac   lt   gt   Disconnect  Fuse MCR  230V ac  1 0      l Circuits  Isolation Operation of either of these contacts will    a  a Vester Con ly CR  x   V ac  x2 SERENI i Cat  No  700 PK400A1  or 230V ac Emergency Stop Sio Start Suppressor  Fuse      Push Button  Overtravel p an Cat  No  700 N24    gt  m Limit Switch m     1 2 MCR  ag S  i re     MCR t Suppr    2  MCR  e 115V ac or        230V ac  j 1 0 Circuits  dc Power Supply     Use IEC 950 EN 60950  MCR  l       24V dc  Line Terminals  Connect to terminals of Power Circuits    Publication 1762 UM001B EN P    Supply  1762 L24AWA  1762 L24BWA   1762 L40AWA  and 1762 L40BWA         Line Terminals  ae to 24V dc terminals of  Power Supply  1762 L24BXB and 1762 L40BXB                                                                                                            Installing Your Controller 2 11  Schematic  Using ANSI CSA Symbols   L1  230V ac           Disconnect  MCR  Ka   230V ac  e          t Output  e ii Circuits  a   Operation of either of these contacts will E  tang larmer   remove power from the external 1 0 1  115V ac or   circuits stopping machine motion   nn es a  X1  gt        x2     i l Cat  No  700 PK400A1  230V ac   Emergency Stop Suppressor  i Fuse        Pu
88. ion  green Power on  RUN off Not executing the user program  green Executing the user program in run mode  green flashing Memory module transfer occurring  FAULT off No fault detected  red flashing Application fault detected  red Controller hardware faulted  FORCE off No forces installed  amber Forces installed  COMM 0 off Not transmitting via RS 232 port  green Transmitting via RS 232 port  DCOMM off Configured communications  green Default communications  INPUTS off Input is not energized  amber Input is energized  terminal status   OUTPUTS off Output is not energized  amber Output is engerized  logic status              Normal Operation    The POWER and RUN LEDs are on  If a force condition is active  the  FORCE LED turns on and remains on until all forces are removed     Publication 1762 UM001B EN P    C 2 Troubleshooting Your System    Publication 1762 UM001B EN P    Error Conditions    If an error exists within the controller  the controller LEDs operate as  described in the following table                    If the The Following Error   Probable Cause Recommended Action   LEDS Exists   indicate    All LEDs off   No input power or No line Power Verify proper line voltage and   power supply error connections to the controller   Power Supply This problem can occur  Overloaded intermittently if power supply is   overloaded when output loading  and temperature varies    Power and   Hardware faulted Processor Hardware   Cycle power  Contact your local   FAULT Error Allen Bra
89. ious  temperatures     Table 6 1 RTC Accuracy             Ambient Temperature Accuracy     0  C   32  F   34 to  70 seconds month   25  C   77  F   36 to  68 seconds month   40  C   104  F   29 to  75 seconds month   55  C   131  F   133 to  237 seconds month           1  These numbers are maximum worst case values over a 31 day month   Writing Data to the Real Time Clock    When valid data is sent to the real time clock from the programming  device or another controller  the new values take effect immediately     The real time clock does not recognize or accept invalid date or time data     Use the Disable Clock button in your RSLogix programming software to  disable the real time clock before storing a module  This decreases the  drain on the RTC battery during storage     RTC Battery Operation    The real time clock has an internal battery that is not replaceable  The  RTC Function File features a battery low indicator bit  RTC 0 BL   which  shows the status of the RTC battery  When the battery is low  the indicator  bit is set  1   This means that the battery may fail within 14 days and the  real time clock module needs to be replaced  When the battery low  indicator bit is clear  0   the battery level is acceptable or a real time clock  is not attached     If the RTC battery is low and the controller is powered  the RTC operates  normally  If the controller power is removed and the RTC battery is low   RTC data is lost     Life Span Operating Temperature Storage Temperat
90. iscrete Wiring Diagrams    The following illustrations show the discrete expansion I O wiring  diagrams     Figure 3 21 1762 1A8 Wiring Diagram                         L1  M   aoe  a  o  sal re a    iew   aan  ial  AC  COM fe i Common    connected  L2 AC               internally   COM             Figure 3 22 1762 108 Wiring Diagram    Wiring Your Controller 3 17                                                                                                           DC  sinking    DC  sourcing   INO oe 7  jos IN 1  IN 2 ar  24V de   2 N4 ee a  a IN5  N6 m  E IN7 a  DC Po  sida y COM EEEN connected   DC an DC oe f i  COM  Figure 3 23 1762 1016 Wiring Diagram  So A  DC  Sinking   z    DC  Sourcing     INO  ar   manch IN 1  at  E IN 2 tease    ore   ne eer 24V de  H Ne H  7  ON   IN7      ny 0   Y  0    Sinking        DC  Sourcing    DC  Sinking      DC  Sourcing  H IN 8    o  N9    te IN 10 pae MET       N11    24V dc    IN 12 meer    H N1413      IN 14 H ar    2O    S IN 15 DC    ee COM 1     DC  Sinking        DC  Sourcing     Publication 1762 UM001B EN P    3 18 Wiring Your Controller    Figure 3 24 1762 OA8 Wiring Diagram                       ee oa zag   VAC   i   L1   Oy outo r  OUT 1  CR     CRH ourz   Ra  ouT3 HCR                   L1       ______  Es  H OUT 4 nOD                                      DC        24V dc  source      DC    Publication 1762 UM001B EN P    Wiring Your Controller 3 19    Figure 3 26 1762 0B16 Wiring Diagram                                     
91. issions    EN50081 2 Class A       Electrical  EMC     The module has passed testing at the following levels                       ESD Immunity  IEC1000 4 2 A kV contact  8 kV air  4 kV indirect   Radiated Immunity  IEC1000 4 3  10 V m  80 to 1000 MHz  80  amplitude modulation   900  MHz keyed carrier   Fast Transient Burst  IEC1000 4 4  2 kV  5 kHz   Surge Immunity  IEC1000 4 5  1 kV galvanic gun   Conducted Immunity  IEC1000 4 6  10V  0 15 to 80 MHz                1  Conducted Immunity frequency range may be 150 kHz to 30 MHZ if the Radiated Immunity frequency range is 30 MHz    to 1000 MHz     Publication 1762 UM001B EN P    A 12 Specifications    Publication 1762 UM001B EN P    Table A 17 Common Specifications       Specification 1762 IF20F2 1762 IF4   Approximate Shipping   240g  0 53 Ibs     Weight    with carton    Bus Current Draw  max    40 mA at 5V de 40 mA at 5V de  105 mA at 24V de 50 mA at 24V de       Analog Normal  Operating Range    Voltage  0 to 10V de  Current  4 to 20 mA    Voltage   10 to  10V dc  Current  4 to 20 mA       Full Scale     Analog  Ranges    Voltage  0 to 10 5V de  Current  0 to 21 mA    Voltage   10 5 to  10 5V dc  Current   21 to  21 mA                Resolution 12 bits  unipolar  15 bits  Repeatability   0 1   0 1   Input and Output Group  30V ac 30V de rated working voltage        to System Isolation     N E C  Class 2 required      IEC Class 2 reinforced insulation     type test  500V ac or 707V dc for 1 minute       Vendor   D  Code    
92. ituation where the operator must quickly  de energize I O devices only  When inspecting or installing terminal  connections  replacing output fuses  or working on equipment within the  enclosure  use the disconnect to shut off power to the rest of the system     NOTE Do not control the master control relay with the controller   Provide the operator with the safety of a direct connection    between an emergency stop switch and the master control  relay     Using Emergency Stop Switches    When using emergency stop switches  adhere to the following points     e Do not program emergency stop switches in the controller program   Any emergency stop switch should turn off all machine power by  turning off the master control relay     e Observe all applicable local codes concerning the placement and  labeling of emergency stop switches     e Install emergency stop switches and the master control relay in your  system  Make certain that relay contacts have a sufficient rating for  your application  Emergency stop switches must be easy to reach     e In the following illustration  input and output circuits are shown with  MCR protection  However  in most applications  only output circuits  require MCR protection     The following illustrations show the Master Control Relay wired in a  grounded system     NOTE In most applications input circuits do not require MCR    protection  however  if you need to remove power from  all field devices  you must include MCR contacts in series  with 
93. l accessory  Current is consumed only if the accessory is installed                       Publication 1762 UM001B EN P    F 2 System Loading and Heat Dissipation    Table F 2 Calculating the Current for Expansion 1 0                                                          Catalog Number   n A B nxA nxB  Number of Device Current Requirements Calculated Current  Modules  max   at 5V dc  mA  at 24V dc  mA    at5Vdc mA    at24V dc  mA   1762 1A8 2 50 0 100 0  1762 108 50 0  1762 1016 60 0  1762 0A8 115 0  1762 0B8 115 0  1762 0B16 175 0  1762 0W8 2 80 90 160 180  1762 OW16 120 140  1762 IF20F2 40 105  1762 F4 40 50  Total Modules  6 maximum   4 Subtotal 2  260 180   1  Refer to your expansion 1 0 Installation Instructions for Current Requirements not listed in this table        Validating the System    The example systems shown in the tables below are verified to be  acceptable configurations  The systems are valid because     e Calculated Current Values  lt  Maximum Allowable Current Values       Calculated System Loading  lt  Maximum Allowable System Loading    Table F 3 Validating Systems Using 1762 L24AWA or 1762 L24BXB    Maximum Allowable Values    Current     Calculated Values    Current  Subtotal 1   Subtotal 2 from Table F 1 and Table F 2 on page F 2          400 mA at 5V de  System Loading     350 mA at 24V de    0 mA   260 mA   260 mA at 5V de    System Loading     120 mA   180 mA   300 mA at 24V de       10 4 Watts       260 mA x 5V     300 mA x 24V       1300 mW    
94. lautomation com    Wherever you need us  Rockwell Automation brings together leading  brands in industrial automation including Allen Bradley controls    Reliance Electric power transmission products  Dodge mechanical power  transmission components  and Rockwell Software  Rockwell Automation s  unique  flexible approach to helping customers achieve a competitive  advantage is supported by thousands of authorized partners  distributors  and system integrators around the world     Americas Headquarters  1201 South Second Street  Milwaukee  WI 53204  USA  Tel   1  414 382 2000  Fax   1  414 382 4444  European Headquarters SA NV  avenue Herrmann Debroux  46  1160 Brussels  Belgium  Tel   32  2 663 06 00  Fax   32  2 663 06 40  Asia Pacific Headquarters  27 F Citicorp Centre  18 Whitfield Road  Causeway Bay  Hong Kong  Tel   852  2887 4788  Fax   852  2508 1846    Publication 1762 UM001B EN P   November 2000  Supersedes Publication 1762 UM001A EN P   January 2000                   Allen Bradley  AEEMEIE DOGE    To        Automation  PN 40072 078 01 B        2000 Rockwell International Corporation  Printed in the U S A     
95. ly up to 100K VA  and 0 30m  1 ft  from lines of 100K VA or  more     Running the communication cable through conduit provides extra  protection from physical damage and electrical interference  If you  route the cable through conduit  follow these additional  recommendations         Use ferromagnetic conduit near critical sources of electrical  interference  You can use aluminum conduit in non critical areas         Use plastic connectors to couple between aluminum and  ferromagnetic conduit  Make an electrical connection around the  plastic connector  use pipe clamps and the heavy gauge wire or  wire braid  to hold both sections at the same potential         Ground the entire length of conduit by attaching it to the building  earth ground         Do not let the conduit touch the plug on the cable         Arrange the cables loosely within the conduit  The conduit should  contain only serial communication cables         Install the conduit so that it meets all applicable codes and  environmental specifications     For more information on planning cable routes  see Industrial  Automation Wiring and Grounding Guidelines  publication Number  1770 4 1     Software Considerations    Software considerations include the configuration of the network and the  parameters that can be set to the specific requirements of the network   The following are major configuration factors that have a significant effect  on network performance     e number of nodes on the network  e addresses of th
96. n guide for the AlC  4 12  selection guide for the DeviceNet network 4 17  calling for assistance C 7  CE mark 2 2  common techniques used in this manual P 3  communication  DeviceNet 4 17  communication connections 4 7  communication options 1 4  communication protocols  DF1 Full Duplex    7  DF1 Half Duplex    3  DH485 E 8  Modbus F 76  communication scan Glossary 1  communications toggle push button  using 4 2  component descriptions 1 2  1762 expansion   0 1 3  communication cables 1 4  memory module 1 2  real time clock 1 2  configuration errors C 6  connecting expansion I O 2 19  connecting the system  AIC  4 10  4 15  DeviceNet network 4 17  DF1 Full Duplex protocol 4 2  DF1 isolated point to point connection 4 3  DH485 network 4 7  connecting to DF1 Half Duplex network 4 6  contacting Rockwell Automation for assistance P 3  contactors  bulletin 100   surge suppressors for 3 5  control profile Glossary 2    Publication 1762 UM001B EN P    2 Index    ControlFlash  missing corrupt OS LED pattern D 2  sequence of operation D 2  using D 1  controller Glossary 1  grounding 3 6  I O wiring 3 16  installation 2 1  LED status C 7  LED status error conditions C 2  LED status normal operation C 1  minimizing electrical noise 3 16  mounting 2 14  mounting dimensions 2 13  mounting on DIN rail 2 75  mounting on panel 2 76  preventing excessive heat 2 7  controller overhead Glossary 1  controller spacing 2 13  counter Glossary 2  CPU  Central Processing Unit  Glossary 2    D    dat
97. n there is no message to transmit        Duplicate Packet  Message   Detect    enabled  disabled  Detects and eliminates duplicate responses to a message  Duplicate packets may be sent under noisy  communication conditions if the sender s Message Retries are not set to 0        Poll Timeout  x20 ms     0 to 65535  can be set in 20 ms increments    Poll Timeout only applies when a slave device initiates a MSG instruction  It is the amount of time that the  slave device waits for a poll from the master device  If the slave device does not receive a poll within the  Poll Timeout  a MSG instruction error is generated  and the ladder program needs to requeue the MSG  instruction  If you are using a MSG instruction  it is recommended that a Poll Timeout value of zero not be  used  Poll Timeout is disabled when set to zero        RTS Off Delay  x20 ms     0 to 65535  can be set in 20 ms increments   Specifies the delay time between when the last serial character is sent to the modem and when RTS is  deactivated  Gives the modem extra time to transmit the last character of a packet        RTS Send Delay  x20 ms     0 to 65535  can be set in 20 ms increments   Specifies the time delay between setting RTS until checking for the CTS response  For use with modems  that are not ready to respond with CTS immediately upon receipt of RTS        Message Retries    0 to 255   Specifies the number of times a slave device attempts to resend a message packet when it does not  receive an ACK from 
98. ndustrial environment     Low Voltage Directive    This product is tested to meet Council Directive 73 23 EEC Low Voltage   by applying the safety requirements of EN 61131 2 Programmable  Controllers  Part 2   Equipment Requirements and Tests     For specific information required by EN 61131 2  see the appropriate  sections in this publication  as well as the following Allen Bradley  publications     e Industrial Automation Wiring and Grounding Guidelines for Noise  Immunity  publication 1770 4 1       Guidelines for Handling Lithium Batteries  publication AG 5 4    e Automation Systems Catalog  publication B113    Installing Your Controller 2 3       Installation  Considerations    Most applications require installation in an industrial enclosure  Pollution  Degree 2  to reduce the effects of electrical interference  Over Voltage    Category 1  and environmental exposure  Locate your controller as far  as possible from power lines  load lines  and other sources of electrical  noise such as hard contact switches  relays  and AC motor drives  For  more information on proper grounding guidelines  see the Industrial  Automation Wiring and Grounding Guidelines publication 1770 4 1     ATTENTION    Vertical mounting of the controller is not  recommended due to heat build up considerations           holes for your controller or other equipment within    the enclosure or panel  Drilled fragments that fall into  the controller or I O modules could cause damage   Do not drill holes ab
99. network functions   network architecture  and performance characteristics  It will also help  you plan and operate a MicroLogix on a DH485 network     DH485 Network Description    The DH485 protocol defines the communication between multiple  devices that coexist on a single pair of wires  DH485 protocol uses RS 485  Half Duplex as its physical interface   RS 485 is a definition of electrical  characteristics  it is not a protocol   RS 485 uses devices that are capable  of co existing on a common data circuit  thus allowing data to be easily  shared between devices     The DH485 network offers    e interconnection of 32 devices      multi master capability      token passing access control   e the ability to add or remove nodes without disrupting the network   e maximum network segment of 1219 m  4000 ft   The DH485 protocol supports two classes of devices  initiators and  responders  All initiators on the network get a chance to initiate message    transfers  To determine which initiator has the right to transmit  a token  passing algorithm is used     The following section describes the protocol used to control message  transfers on the DH485 network     DH485 Token Rotation    A node holding the token can send a message onto the network  Each  node is allowed a fixed number of transmissions  based on the Token  Hold Factor  each time it receives the token  After a node sends a  message  it passes the token to the next device     The allowable range of node addresses is 0 t
100. nication Cables    Programming    Communication Options    Publication 1762 UM001B EN P    Use only the following communication cables with the MicroLogix 1200  controllers     e 1761 CBL PMO2 Series C or later  e 1761 CBL HM0O2 Series C or later  e 1761 CBL AMO0 Series C or later  e 1761 CBL AP00 Series C or later  e 2707 NC8 Series A or later   e 2702 NC9 Series B or later   e 2707 NC10 Series B or later   e 2707 NC11 Series B or later    Programming the MicroLogix 1200 programmable controller is done using  RSLogix    500  Revision 4 or later  You must use Revision 4 5 or later of  RSLogix    500 in order to use the new features of the Series B MicroLogix  1200 controllers  including the full ASCII instruction set  Communication  cables for programming are not included with the software     NOTE Series C or higher cables are required     The MicroLogix 1200 can be connected to a personal computer  It can  also be connected to the DH485 network using an Advanced Interface  Converter  catalog number 1761 NET AIC  and to the DeviceNet     network using a DeviceNet Interface  catalog number 1761 NET DND    The controller can also be connected to DF1 Half Duplex or Modbus     SCADA networks as an RTU slave  Series B controllers may also be  connected to serial devices using ASCII  See Chapter 4 Communication  Connections for more information on connecting to the available  communication options     Chapter 2       Agency Certifications    Installing Your Controller    This chap
101. nly    Surge Current per Point    e peak current e 40A e Not Applicable   e maximum surge duration e 10 msec e Not Applicable   e maximum rate of repetition at 30  C  86  F       once every second     Not Applicable   e maximum rate of repetition at 55  C e once every 2 e Not Applicable   131  F  seconds   Turn On Time  maximum  0 1 msec 6 sec   Turn Off Time  maximum  1 0 msec 18 usec   Repeatability  maximum  n a 2 usec   Drift  maximum  n a 1 usec per 5  C  9  F            1  Output 2 is designed to provide increased functionality over the other FET outputs  Output 2 may be used like the  other FET transistor outputs  but in addition  within a limited current range  it may be operated at a higher speed   Output 2 also provides a pulse train output  PTO  or pulse width modulation output  PWM  function        Table A 5 AC Input Filter Settings               Nominal Filter OFF Delay  ms     Setting  ms  Maximum       Table A 6 Fast DC Input Filter Settings  Inputs 0 to 3                                         Nominal   ON Delay  ms  J OFF Delay  ms   Maximum   Al  ms  Minimum Maximum   Minimum Maximum aie  Hz   50  Duty Cycle   0 025 0 005 0 025 0 005 0 025 20 0 kHz   0 075 0 040 0 075 0 045 0 075 6 7 kHz   0 100 0 050 0 100 0 060 0 100 5 0 kHz   0 250 0 170 0 250 0 210 0 250 2 0 kHz   0 500 0 370 0 500 0 330 0 500 1 0 kHz   1 00 0 700 1 000 0 800 1 000 0 5 kHz   2 000 1 700 2 000 1 600 2 000 250 Hz   4 000 3 400 4 000 3 600 4 000 125 Hz   8 000     6 700 8 000 7 300 8 000 6
102. nsiderations for the micro controllers     Isolation Transformers    You may want to use an isolation transformer in the ac line to the  controller  This type of transformer provides isolation from your power  distribution system to reduce the electrical noise that enters the controller  and is often used as a step down transformer to reduce line voltage  Any  transformer used with the controller must have a sufficient power rating  for its load  The power rating is expressed in volt amperes  VA      Power Supply Inrush    During power up  the MicroLogix 1200 power supply allows a brief inrush  current to charge internal capacitors  Many power lines and control  transformers can supply inrush current for a brief time  If the power  source cannot supply this inrush current  the source voltage may sag  momentarily     The only effect of limited inrush current and voltage sag on the  MicroLogix 1200 is that the power supply capacitors charge more slowly   However  the effect of a voltage sag on other equipment should be  considered  For example  a deep voltage sag may reset a computer  connected to the same power source  The following considerations  determine whether the power source must be required to supply high  inrush current     e The power up sequence of devices in a system     e The amount of the power source voltage sag if the inrush current  cannot be supplied     e The effect of voltage sag on other equipment in the system     If the entire system is powered up at th
103. ntrollers     The COM of the sensor supply is also connected to  chassis ground internally  The 24V dc sensor power  source should not be used to power output circuits  It  should only be used to power input devices     e For 1762 L24BXB and 1762 L40BXB controllers     The VDC NEUT or common terminal of the power  supply is also connected to chassis ground internally        Communication Connections 4 3    Table 4 2 Available Communication Cables                         Communication Cables Length  1761 CBL PM02 Series C or later 2m  6 5 ft   1761 CBL HM02 Series C or later 2m  6 5 ft   1761 CBL AMOO Series C or later 45 cm  17 7 in   1761 CBL APOO Series C or later 45 cm  17 7 in   2707 NC8 Series A or later 2m  6 5 ft   2707 NC9 Series B or later 15m  49 2 ft   2707 NC10 Series B or later 2m  6 5 ft   2707 NC11 Series B or later 2m  6 5 ft           Making a DF1 Point to Point Connection    You can connect the MicroLogix 1200 programmable controller to your  personal computer using a serial cable  1762 CBL PM02  from your  personal computer   s serial port to the controller  The recommended  protocol for this configuration is DF1 Full Duplex     We recommend using an Advanced Interface Converter  AIC    catalog  number 1761 NET AIC  as your optical isolator  as shown below   See page 4 11 for specific AIC  cabling information        MicroLogix 1200 H Personal Computer    f  gt                 4 1761 CBL AMOO0 or 1761 CBL HM02                                                 
104. o 31  There must be at least  one initiator on the network such as a MicroLogix controller  or an SLC 5   02    or higher processor     Understanding the Communication Protocols E 9    DH485 Configuration Parameters    When MicroLogix communications are configured for DH485  the  following parameters can be changed     Table E 3 DF1 Full Duplex Configuration Parameters       Parameter Options   Baud Rate 9600  19 2K  Node Address 1 to 31 decimal  Token Hold Factor 1to4             See Appendix E Software Considerations for tips on setting the parameters  listed above     Devices that use the DH485 Network    In addition to the MicroLogix 1200 controllers  the devices shown in the  following table also support the DH485 network     Table E 4 Allen Bradley Devices that Support DH485 Communication                               Catalog Description Installation  Function Publication  Number  Bulletin 1761  MicroLogix 1000  SeriesC or   These controllers support DH485 communications  1761 6 3  Controllers higher  Bulletin 1764  MicroLogix 1500 Series Aor   These controllers support DH485 communications  1764 UM001A US P  higher  Bulletin 1747 ISLC 500 SLC Chassis   These processors support a variety of   O requirements and 1747 6 2  Processors Processors functionality   1746 BAS BASIC Module SLC Chassis  Provides an interface for SLC 500 devices to foreign devices  1746 UM004A US P  Program in BASIC to interface the 3 channels  2 RS232 and 1 1746 PM001A US P  DH485  to printers  mo
105. o eas wa kee ee ee ke A 4 4  Isolated Modem Connection               0 0005 4 4  Connecting to a DF1 Half Duplex Network           4 6   Connecting to a DH485 Network                0005 4 7  Recommended Tools    n n anaa se9 bag glagugl hoa Ba ye 4 7  DH485 Communication Cable  og sce eh eo aes 4 8  Connecting the Communication Cable to the DH485  GODNECIOR 3 46 gt  34 44 4282 2 Chet Oh eae Be POP SG eS he 4 8  Grounding and Terminating the DH485 Network       4 10   Connecting the AIC   4 22 dis sn cht Rahs Darts bus Gro ewe ee Ae 4 10  Cable Selection Guide 4 4  wx 4 4s 24S ee BLOKE es 4 11    Using Trim Pots    Using Real Time Clock and  Memory Modules    Specifications    Replacement Parts    Table of Contents iii    Recommended User Supplied Components           4 14  Safety COnsidemions 4 6 asc 6oGH kee Ae es ee Oe 4 15  Installing and Attaching the AIGh  2 2704 ed Pee 4 15  Powering the AlCtes425 ok cis eke eee se eS eee es es 4 15  DeviceNet COMMUNICAIONS 064  4544 5 oe oe ee a RSS 4 17  Cable Selection Guide    joys Sek tak ame Ape Ka 4 17  Chapter 5  Trim Pot Operation    g eae iw Hoe RN Es ae ee 5 1  Trim Pot Information Function File                 5 1  Error Conditons  lt i iesp esasen E e a D ai 5 2  Chapter 6  Real Time Clock Operation 2 5 cca  ae anaua 6 1  Removal Insertion Under Power                44 6 1  Writing Data to the Real Time Clock                6 2  RTC Battery Operation    n    aoaaa aa 6 2  Memory Module Operation     naonao aaa aeaa 6 3  Us
106. o7  7 15 3 7  Group 2  Outputs 4 to  Group 2  Outputs 8 to  7 15  Output Group   Verified by one of the Verified by one of the following dielectric Verified by one of the following dielectric  to Backplane  following dielectric tests   tests  1200V ac for 1 sec  or 1697V dc for 1 tests  1836V ac for 1 sec  or 2596V dc for 1  Isolation 1836V ac for 1 sec  or sec  sec   2596V de for 1 sec  75V de working voltage  IEC Class 2 reinforced  265V ac working voltage  IEC Class 2  265V ac working voltage insulation  reinforced insulation    IEC Class 2 reinforced  insulation   Output Group   Verified by one of the Not Applicable Verified by one of the following dielectric  to Output following dielectric tests  tests  1836V ac for 1 sec  or 2596V de for 1    Group Isolation    1836V ac for 1 sec  or  2596V dc for 1 sec   265V ac working voltage   IEC Class 2 reinforced  insulation     sec    265V ac working voltage  basic insulation   150V ac working voltage  IEC Class 2  reinforced insulation              Vendor   D  1 1 1 1 1  Code   Product Type  7 7 7 7 7  Code   Product Code  119 101 103 120 121                      Publication 1762 UM001B EN P    Table A 15 Relay Contact Ratings  1762 0W8 and 1762 0W16                                         Maximum Amperes Amperes Volt Amperes   Volts Make Break Continuous Make Break   240V ac 7 5A 0 75A 25A   1800 VA 180 VA   120V ac 15A 1 5A 25A  1800 VA 180 VA   125V dc 0 2242 1 0A   24V dc 1 242 2 0A ae   1  1 5A above 40  C    2  For dc vol
107. oading      mA x 24V      mA x 5V     mA x 24V     mW   mW   mW    mW  12 Watts   W    System Loading Example Calculations  40 Point Controller     Current Loading    Table F 9 Calculating the Current for MicroLogix Accessories          Catalog Number Device Current Requirements Calculated Current  at 5V dc  mA  at 24V dc  mA  at 5V dc at 24V de   mA   mA   1761 NET AIC    when powered by the base unit 0 120 0 120  communications port  selector switch in the up position  Subtotal 1  0 120              1  This is an optional accessory  Current is consumed only if the accessory is installed     Publication 1762 UM001B EN P    F 6 System Loading and Heat Dissipation    Table F 10 Calculating the Current for Expansion 1 0                                                 Catalog Number  n A B nxA nxB  Number of Device Current Requirements  max    Calculated Current  Modules at 5V dc  mA  at 24V dc  mA  at5Vdc mA    at 24V dc  mA   1762 1A8 50 0  B 1762 108 50 0  B 1762 1016 2 60 0 120 0      1762 0A8 1 115 0 115 0  B 1762 068 115 0      1762 0816 175 0  p 1762 0W8 80 90      1762 0W16 1 120 140 120 140  Be 1762 1F20F2 1 40 105 40 105       1762 IF4 40 50  i      Total Modules  6 maximum   6 Subtotal 2  395 245                 1  Refer to your expansion 1 0 Installation Instructions for Current Requirements not listed in this table     Validating the System  The example systems shown in Table F 11 and Table F 12 are verified to  be acceptable configurations  The systems are valid be
108. ode   Used as status indicator for processor functions and inputs and outputs     LIFO  Last In First Out   The order that data is entered into and retrieved from a file     low byte  Bits 0 to 7 of a word     logic   A process of solving complex problems through the repeated use of  simple functions that can be either true or false  General term for digital  circuits and programmed instructions to perform required decision  making and computational functions     Master Control Relay  MCR    A mandatory hard wired relay that can be de energized by any  series connected emergency stop switch  Whenever the MCR is  de energized  its contacts open to de energize all application I O devices     mnemonic  A simple and easy to remember term that is used to represent a complex  or lengthy set of information     modem  Modulator demodulator  Equipment that connects data terminal  equipment to a communication line     modes  Selected methods of operation  Example  run  test  or program     negative logic   The use of binary logic in such a way that    0    represents the voltage level  normally associated with logic 1  for example  0    5V  1   OV   Positive is  more conventional  for example  1    5V  0   OV      Glossary  G 5       network  A series of stations  nodes  connected by some type of communication  medium  A network may be made up of a single link or multiple links     nominal input current  The current at nominal input voltage     normally closed   Contacts on a relay or 
109. ogix 1200                                     1761 CBL AMOO or 1761 CBL HMo2             Modem    User supplied modem cable U eresse                                          1  Series C or higher cables are required     For additional information on connections using the AIC   refer to the  Advanced Interface Converter  AIC   User Manual  publication 1761 6 4     Constructing Your Own Modem Cable    Communication Connections 4 5    If you construct your own modem cable  the maximum cable length is  15 24 m  50 ft  with a 25 pin or 9 pin connector  Refer to the following  typical pinout for constructing a straight through cable                                                                          DTE Device   AIC    MicroLogix   SLC  PLC  etc    9 Pin   3 TXD  2 RXD  5 GND  1 DCD  4 DTR  6 DSR  8 CTS  7 RTS                   Constructing Your Own Null Modem Cable             DCE Device   Modem   PanelView   etc    25 Pin 9 Pin  em  TXD   2 3  RXD   3 2   gt  GND   7 5  DCD   8 1   gt  DTR   20 4  DSR   6 6  CTS   5 8   gt   RIS   4 7          If you construct your own null modem cable  the maximum cable length  is 15 24 m  50 ft  with a 25 pin or 9 pin connector  Refer to the following  typical pinout           DCE Device   Modem     PanelView  etc                                                                                 DTE Device   AIC    MicroLogix   SLC  PLC    etc     9 Pin   3 TXD    2 RXD   5 GND    1 DCD  lt 4  4 DTR   6 DSR   8 CTS   7 RTS J4 oo              
110. oller LED Status                 Normal Operation a  c 66  42  8 dedin aaah OG dene   bbGaa 4  Error Conditions oF nen o ceecee eneee sich eae tet   Controller Error Recovery Model                  00    Analog Expansion I O Diagnostics and Troubleshooting       Module Operation and Channel Operation            Power up Diagnostics      sssaaa 0 0000  ee eee  Critical and Non  Critical Errors    ek Bea B4O  S oes  Module Error Definition Table   4 000  6b ees  PROM EOC Cay ire out a Beco ein Soh hol  BIS Poe ee ie aed   Calling Rockwell Automation for Assistance                Appendix D   Preparing for Upgrade    24 5 eset a4 a eorege fe eee Rees  Install ControlFlash Software 044 20444424 ed 6 eee  Prepare the Controller for Updating                   Sequence of Operation hides Gon LOS Bee Oey eae   Missing Corrupt OS LED Pattern     4 4 056   oho es oe hos    Appendix E   RS 232 Communication Intetface yc ewe pe hae ea as   DF1 Pull  Duplex Protocol     n   nba Lah oak hee  DF1 Full Duplex Operation      n o F be whee ha Pe ans   DF I Half Duplex Protocol    n    auauna ve Ge anie ea Ge a  DEI Hale Duplex Operation  644  66s hese aeRe  Considerations When Communicating as a  DF1 Slave on a Multi drop Link                     Using Modems with MicroLogix 1200  Programmable Controllers     Fa ain ea PER ROX E44   DH485 Communication Protocol                 005  DH485 Network Description                  005   DH485 Token Rotation  oi45 oso ee eee Po aS  DH485 Configuration
111. oller should support auto answer  The MicroLogix 1200 supports  ASCII out communications  Therefore  it can cause a modem to initiate or  disconnect a phone call     Leased Line Modems    Leased line modems are used with dedicated phone lines that are  typically leased from the local phone company  The dedicated lines may  be in a point to point topology supporting Full Duplex communications  between two modems or in a multi drop topology supporting  Half Duplex communications between three or more modems     Radio Modems    Radio modems may be implemented in a point to point topology  supporting either Half Duplex or Full Duplex communications  or in a  multi drop topology supporting Half Duplex communications between  three or more modems     Line Drivers    Line drivers  also called short haul modems  do not actually modulate the  serial data  but rather condition the electrical signals to operate reliably  over long transmission distances  up to several miles   Line drivers are  available in Full Duplex and Half Duplex models  Allen Bradley   s AIC   Advanced Interface Converter is a Half Duplex line driver that converts an  RS 232 electrical signal into an RS 485 electrical signal  increasing the  signal transmission distance from 50 to 4000 feet  8000 feet when  bridged      Publication 1762 UM001B EN P    E 8 Understanding the Communication Protocols    DH485 Communication  Protocol    Publication 1762 UM001B EN P    The information in this section describes the DH485 
112. ommunication Protocols E 3    DF1 Half Duplex protocol is a multi drop single master multiple slave  network  DF1 Half Duplex protocol supports data transparency  American  National Standards Institute ANSI   X3 28 1976 specification subcategory  D1   In contrast to DF1 Full Duplex  communication takes place in one  direction at a time  You can use the RS 232 port on the MicroLogix 1200 as  both a Half Duplex programming port and a Half Duplex peer to peer  messaging port     DF1 Half Duplex Operation    The master device initiates all communication by    polling    each slave  device  The slave device may only transmit message packets when it is  polled by the master  It is the master   s responsibility to poll each slave on  a regular and sequential basis to allow slave devices an opportunity to  communicate  During a polling sequence  the master polls a slave either  repeatedly until the slave indicates that it has no more message packets to  transmit or just one time per polling sequence  depending on how the  master is configured     An additional feature of the DF1 Half Duplex protocol is that a slave  device may enable a MSG instruction in its ladder program to send or  request data to from another slave  When the initiating slave is polled  the  MSG instruction is sent to the master  The master recognizes that the  message is not intended for it  but for another slave  so the master  immediately forwards the message to the intended slave  The master does  this automat
113. operation 6 3  program compare 6 3  program data backup 6 3  removal installation under power 6 4  write protection 6 4  minimizing electrical noise 3 16  mnemonic Glossary 4  Modbus communication protocol F 76  modem Glossary 4  modem cable  constructing your own 4 5  modems  dial up phone    7  leased line F 7  line drivers F 7  radio F 7  using with MicroLogix controllers    6  modes Glossary 4  module error field C 5  motor starters  bulletin 509   surge suppressors 3 5  motor starters  bulletin 709   surge suppressors 3 5    negative logic Glossary 4  network Glossary 5   nominal input current Glossary 5  normally closed Glossary 5  normally open Glossary 5   null modem cable 4 5    0    offline Glossary 5  offset Glossary 5  off state leakage current Glossary 5    Publication 1762 UM001B EN P    4 Index    one shot Glossary 5   online Glossary 6   operating voltage Glossary 6  output device Glossary 6    P    planning considerations for a network F 70  power considerations  input states on power down 2 7  isolation transformers 2 6  loss of power source 2 7  other line conditions 2 7  overview 2 6  power supply inrush 2 6  power distribution 2 5  power source  loss of 2 7  power supply inrush  power considerations 2 6  preparing for upgrade D 1  preventing excessive heat 2 7  processor Glossary 6  processor file Glossary 6  program file Glossary 6  program mode Glossary 6  program scan Glossary 6  programming 1 4  programming device Glossary 6  protocol Glossary 6  publ
114. ose nodes  e baud rate  The following sections explain network considerations and describe ways    to select parameters for optimum network performance  speed   See your  programming software   s user manual for more information     Understanding the Communication Protocols E 13    Number of Nodes    The number of nodes on the network directly affects the data transfer  time between nodes  Unnecessary nodes  such as a second programming  terminal that is not being used  slow the data transfer rate  The maximum  number of nodes on the network is 32     Setting Node Addresses    The best network performance occurs when node addresses are assigned  in sequential order  Initiators  such as personal computers  should be  assigned the lowest numbered addresses to minimize the time required to  initialize the network  The valid range for the MicroLogix 1200 controllers  is 1 31  controllers cannot be node 0   The default setting is 1  The node  address is stored in the controller Communications Status file  CS0 5 0 to  CS0 5 7      Setting Controller Baud Rate    The best network performance occurs at the highest baud rate  which is  19200  This is the default baud rate for a MicroLogix 1200 device on the  DH485 network  All devices must be at the same baud rate  This rate is  stored in the controller Communications Status file  CS0 5 8 to CS0 5 15      Setting Maximum Node Address    Once you have an established network set up and are confident that you  will not be adding more dev
115. ostatic noise from the industrial  environment on network communication     The communication cable consists of a number of cable segments  daisy chained together  The total length of the cable segments cannot  exceed 1219 m  4000 ft   However  two segments can be used to extend  the DH485 network to 2438 m  8000 ft   For additional information on  connections using the AIC   refer to the Advanced Interface Converter   AIC   User Manual  publication 1761 6 4     When cutting cable segments  make them long enough to route them  from one AIC  to the next  with sufficient slack to prevent strain on the  connector  Allow enough extra cable to prevent chafing and kinking in  the cable     Use these instructions for wiring the Belden  3106A or  9842 cable   See  Cable Selection Guide on page 4 11 if you are using standard  Allen Bradley cables      Connecting the Communication Cable to the DH485 Connector    NOTE A daisy chained network is recommended  Do not    make the incorrect connection shown below     Belden  31064 Belden  3106A or Belden  3106A or  or  9842  9842  9842                          p g      Connector         onnector  c Connector    Incorrect    Communication Connections 4 9    Single Cable Connection    When connecting a single cable to the DH485 connector  use the  following diagram                 Shrink Tubing Recommended    Blue with White Drain Wire  Stripes   9842     Multiple Cable Connection    When connecting multiple cables to the DH485 connector  use 
116. otection   30V  30V       Channel Diagnostics       inputs     Over or under range or open circuit  condition by bit reporting for analog       for analog inputs     Over or under range or open  circuit condition by bit reporting        1  For proper operation  both the plus and minus input terminals must be within  27V of analog common      2  Vem  1 Vokepk AC    pk p     3  Vom   0  includes offset  gain  non linearity and repeatability error terms     Table A 19 Output Specifications          Specification 1762 IF20F2   Number of Outputs 2 single ended  unipolar   Update Time  typical  4 5 ms   D A Converter Type Resistor string       Resistive Load on Current Output    0 to 500 Q  includes wire resistance        Load Range on Voltage Output     gt 1KQ       Reactive Load  Current Output     lt 0 1 mH       Reactive Load  Voltage Output     lt 1 uF       Typical Overall Accuracy       1  full scale at 0 to 55  C   0 5  full scale at 25  C                   Output Ripple  lt  0 1   range 0 to 500 Hz    referred to output range    Non linearity  in percent full scale   lt  40 5   Open and Short Circuit Protection Continuous  Output Protection  32 mA        1  Includes offset  gain  non linearity and repeatability error terms     Table A 20 Valid Input Output Data Word Formats Ranges for 1762 IF20F2                   Normal Operating   Full Scale Range RAW Proportional   Scaled for PID  Range Data  10 5V de 32760 16380  OV to 10V de  0 0V de 0 0  21 0mA 32760 16380  20 0mA 31
117. ove a mounted controller if the  protective debris shields are removed or the processor  is installed        Pollution Degree 2 is an environment where normally only non conductive pollution occurs except that occasionally  temporary conductivity caused by condensation shall be expected     BS    Overvoltage Category II is the load level section of the electrical distribution system  At this level  transient voltages  are controlled and do not exceed the impulse voltage capability of the products insulation     Publication 1762 UM001B EN P    2 4 Installing Your Controller    Safety Considerations    Publication 1762 UM001B EN P    Safety considerations are an important element of proper system  installation  Actively thinking about the safety of yourself and others  as  well as the condition of your equipment  is of primary importance  We  recommend reviewing the following safety considerations     Hazardous Location Considerations    This equipment is suitable for use in Class I  Division 2  Groups A  B  C  D  or non hazardous locations only  The following WARNING statement  applies to use in hazardous locations       WARNING   EXPLOSION HAZARD    e Substitution of components may impair suitability for  Class I  Division 2     e Do not replace components or disconnect equipment  unless power has been switched off     e Do not connect or disconnect components unless  power has been switched off     e This product must be installed in an enclosure  All  cables connected to th
118. panded specifications Appendix A   Analog expansion I O module error codes Appendix C   Simplified controller wiring diagrams Chapter 3       Expanded system loading and heat dissipation   Appendix F  worksheets to cover BXB controllers and new  1 0 modules    ASCII protocol page E 17             Publication 1762 UM001B EN P    Summary of Changes iv    Publication 1762 UM001B EN P    Table of Contents    Hardware Overview    Installing Your Controller    Table of Contents    Preface  Who Should Use this Manual      ia dravag geeche anole 4 gua ia P 1  Purpose of this Manual      n   es Pee ee ERD act we EGY P 1  Related Documentation                000000005 P 2  Common Techniques Used in this Manual              P 3  Rockwell Automation Support            0  0 000005 P 3  Local Product Support    ooa oaaae P 3  Technical Product Assistance    6 4 dy wee eet Gare 8S a P 3  Your Questions or Comments on this Manual         P 3  Chapter 1  Hardware Features ii 5 0545 ieina titak eto 1 1  Component Descriptions       sssaaa 1 2  MicroLogix 1200 Memory Module and or  Real Time Clock oan anaa aaa 1 2  1762 Expansion Fd    are ar mn Sem are a 1 3  Communication Cables 6254 s64 18  003 stew ce was Seek te wee 1 4  Programming 655 Seo Go esce do Bong  amp  diodes 4 RAR hs 49S Brande Some 4S boen 1 4  Communication Options 22 0446 aaee Awe te eles 1 4  Chapter 2  Agency Ceiicatons aiieu a a a a ee E eRe Oe eK 2 1  Compliance to European Union Directives              2 2  EMG  Directiv
119. r   then the deleted character    Enable the Echo parameter to use Delete Mode     Echo When Echo Mode is enabled  all of the characters received are echoed back to the remote device  This  Disabled  allows you to view characters on a terminal connected to the controller  Toggles between Enabled and  Disabled     XON XOFF Allows you to Enable or Disable XON  XOFF software handshaking  XON XOFF software handshaking   Disabled  involves the XON and XOFF control characters in the ASCII character set    When the receiver receives the XOFF character  the transmitter stops transmitting until the receiver  receives the XON character  If the receiver does not receive an XON character after 60 seconds  the  transmitter automatically resumes sending characters    Also  when the receive buffer is more than 80  full  an XOFF character is sent to the remote device to  pause the transmission  Then  when the receive buffer drops to less than 80  full  an XON character  is sent to the remote device to resume the transmission                    RTS Off Delay  Allows you to select the delay between when a transmission is ended and when RTS is dropped  0   x20 ms  Specify the RTS Off Delay value in increments of 20 ms  Valid range is 0 to 65535   RTS Send Allows you to select the delay between when RTS is raised and the transmission is initiated  Specify  0          Delay  x20 ms  Ithe RTS Send Delay value in increments of 20 ms  Valid range is 0 to 65535        Publication 1762 UM001B EN P    
120. r  a program stored in memory from a controller to a  personal computer  OR to save a program to a computer hard disk     scan time   The time required for the controller to execute the instructions in the  program  The scan time may vary depending on the instructions and each  instruction   s status during the scan     sinking   A term used to describe current flow between an I O device and  controller I O circuit     typically  a sinking device or circuit provides a  path to ground  low  or negative side of power supply     sourcing   A term used to describe current flow between an I O device and  controller I O circuit     typically  a sourcing device or circuit provides a  path to the source  high  or positive side of power supply     status    The condition of a circuit or system  represented as logic 0  OFF  or 1   ON      Publication 1762 UM001B EN P    G 8 Glossary       Publication 1762 UM001B EN P    terminal  A point on an I O module that external I O devices  such as a push  button or pilot light  are wired to     throughput  The time between when an input turns on and the corresponding output  turns on     true  The status of an instruction that provides a continuous logical path on a  ladder rung     upload  Data is transferred to a programming or storage device from another  device     watchdog timer   A timer that monitors a cyclical process and is cleared at the conclusion of  each cycle  If the watchdog runs past its programmed time period  it  causes a faul
121. r that may be used to save processor  files and reports for future use     high byte  Bits 8 to 15 of a word     input device  A device  such as a push button or a switch  that supplies signals to the  input circuits of the controller     inrush current  The temporary surge current produced when a device or circuit is initially  energized     instruction   A mnemonic and data address defining an operation to be performed by  the processor  A rung in a program consists of a set of input and output  instructions  The input instructions are evaluated by the controller as  being true or false  In turn  the controller sets the output instructions to  true or false     instruction set  The set of general purpose instructions available with a given controller     1 0  Inputs and Outputs     Consists of input and output devices that provide and or receive data  from the controller     Publication 1762 UM001B EN P    G 4 Glossary    Publication 1762 UM001B EN P    jump   Change in normal sequence of program execution  by executing an  instruction that alters the program counter  sometimes called a branch   In  ladder programs a JUMP  JMP  instruction causes execution to jump to a  labeled rung     ladder logic  A program written in a format resembling a ladder like diagram  The  program is used by a programmable controller to control devices     least significant bit  LSB   The digit Cor bit  in a binary word  code  that carries the smallest value of  weight     LED  Light Emitting Di
122. ring diagram 3 17  1762 0A8 wiring diagram 3 18  1762 0B16 wiring diagram 3 19  1762 OB8 wiring diagram 3 18  1762 OW16 wiring diagram 3 20  1762 OW8 wiring diagram 3 19  analog wiring guidelines 3 20   extended error information field C 5    F  false Glossary 3  FIFO  First In First Out  Glossary 3  file Glossary 3  Full Duplex 4 3  full duplex Glossary 3    G    general considerations 2 3  grounding the controller 3 6    H    Half Duplex 4 6  Glossary 3   hard disk Glossary 3   hardware errors C 6   hardware features 7 7   heat dissipation  calculating F 70   heat protection 2 7   high byte Glossary 3    I 0  Inputs and Outputs  Glossary 3  input device Glossary 3  input states on power down 2 7  inrush current Glossary 3  installing   ControlFlash software D 1   memory module 2 72   your controller 2 1  installing real time clock 2 12  instruction Glossary 3  instruction set Glossary 3  isolated link coupler   installing 4 8  isolation transformers   power considerations 2 6    J    jump Glossary 4    L    ladder logic Glossary 4   least significant bit  LSB  Glossary 4  LED  Light Emitting Diode  Glossary 4  LIFO  Last In First Out  Glossary 4  logic Glossary 4   low byte Glossary 4    Index 3    manuals  related P 2  master control relay 2 8  emergency stop switches 2 9  using ANSI CSA symbols schematic 2 17  using IEC symbols schematic 2 70  Master Control Relay  MCR  Glossary 4  master control relay circuit  periodic tests 2 6  memory module  data file protection 6 4  
123. rminals are grouped  A detail of the  groupings is shown in the table following the terminal block layouts     AD  NOTE This T denotes a protective earth ground    terminal which provides a low impedance path between  electrical circuits and earth for safety purposes and  provides noise immunity improvement  This connection  must be made for safety purposes on ac powered  controllers        This S symbol denotes a functional earth ground  terminal which provides a low impedance path between  electrical circuits and earth for non safety purposes  such  as noise immunity improvement     Terminal Block Layouts    Figure 3 1 1762 L24AWA  Group 0 Group 1     el aa  Ea  VAC   VAC JOUT 0JOUT 1fOUT 2  VAC JOUT 5JOUT 6  OUT 8  L1  NEUT DC3  VAC   VAC   VAC JOUT 3JOUT 4f VAC JOUT 7  OUT 9  DC 0  DC1  DC2 DC 4  Q N Nv ie  a    g g g g Q  SS  gt   gt   gt  SS       Inputs               Outputs       Figure 3 2 1762 L24BWA  Group 0 Group 1     24 COM    a  oa  24   com  IN 1 INS   IN4 IN 12  VAC   VAC VAC  Bed a oon  VAC   VAC f VAC VAC  EE  Sci ourson  ocs our four  Q N Nv OF    NS  2 Si S gQ S  X   Ss Ss Ss   S SF     S S        Inputs          Outputs       Naaanaliie The 24V dc sensor supply of the 1762 L24BWA should  not be used to power output circuits  It should only    be used to power input devices  e g  sensors   switches   See Master Control Relay on page 2 8 for  information on MCR wiring in output circuits        Publication 1762 UM001B EN P    3 8 Wiring Your Controller     
124. ry that contains I O values and files where  data is monitored  manipulated  and changed for control purposes     DIN rail   Manufactured according to Deutsche Industrie Normenausshus  DIN   standards  a metal railing designed to ease installation and mounting of  your controller     download  Data is transferred from a programming or storage device to another  device     DTE  Data Terminal Equipment   Equipment that is attached to a network to send or receive data  or both     embedded I 0  Embedded I O is the controllers on board I O     EMI    Electromagnetic interference     encode  1  A rotary device that transmits position information   2  A device that transmits a fixed number of pulses for each revolution     executing mode  Any run or test mode     expansion   0  Expansion I O is I O that is connected to the controller via a bus or cable   MicroLogix 1200 controllers use Bulletin 1762 expansion I O     Glossary  G 3       false  The status of an instruction that does not provide a continuous logical  path on a ladder rung     FIFO  First In First Out   The order that data is entered into and retrieved from a file     file  A collection of information organized into one group     full duplex  A bidirectional mode of communication where data may be transmitted  and received simultaneously  contrast with half duplex      half duplex  A communication link in which data transmission is limited to one  direction at a time     hard disk  A storage area in a personal compute
125. s  leased line modems  radio modems and  line drivers     For point to point Full Duplex modem connections that do not require  any modem handshaking signals to operate  use DF1 Full Duplex  protocol with no handshaking  For point to point Full Duplex modem  connections that require RTS CTS handshaking  use DF1 Full Duplex  protocol with handshaking     For multi drop modem connections  or for point to point modem  connections that require RTS CTS handshaking  use DF1 Half Duplex  slave protocol  In this case  one  and only one  of the other devices must  be configured for DF1 Half Duplex master protocol     METAI Never attempt to use DH4835 protocol through modems    under any circumstance     NOTE All MicroLogix 1200 controllers support RTS CTS modem  handshaking when configured for DF1 Full Duplex    protocol with the control line parameter set to  Full Duplex Modem Handshaking or DF1 Half Duplex  slave protocol with the control line parameter set to     Half Duplex Modem     No other modem handshaking  lines G e  Data Set Ready  Carrier Detect and Data  Terminal Ready  are supported by any MicroLogix 1200  controllers     Understanding the Communication Protocols E 7    Dial Up Phone Modems    Some dial up phone line modems support point to point Full Duplex  communications  A MicroLogix 1200 controller  on the receiving end of  the dial up connection  can be configured for DF1 Full Duplex protocol  with or without handshaking  The modem connected to the MicroLogix  contr
126. s  than the minimum operating current rating of the load that is connected to  the switch     on delay time   The ON delay time is a measure of the time required for the controller  logic to recognize that a signal has been presented at the input terminal of  the controller     one shot  A programming technique that sets a bit for only one program scan     Publication 1762 UM001B EN P    G 6 Glossary    Publication 1762 UM001B EN P    online  Describes devices under direct communication  For example  when  RSLogix 500 is monitoring the program file in a controller     operating voltage  For inputs  the voltage range needed for the input to be in the On state   For outputs  the allowable range of user supplied voltage     output device  A device  such as a pilot light or a motor starter coil  that is controlled by  the controller     processor  A Central Processing Unit   See CPU      processor file  The set of program and data files used by the controller to control output  devices  Only one processor file may be stored in the controller at a time     program file  The area within a processor file that contains the ladder logic program     program mode  When the controller is not executing the processor file and all outputs are  de energized     program scan   A part of the controller   s operating cycle  During the scan the ladder  program is executed and the output data file is updated based on the  program and the input data file     programming device  Executable programm
127. s  the master control relay is  de energized  thereby removing power to the machine  Never alter these  circuits to defeat their function  Serious injury or machine damage could  result     Power Distribution    There are some points about power distribution that you should know     e The master control relay must be able to inhibit all machine motion by  removing power to the machine I O devices when the relay is  de energized  It is recommended that the controller remain powered  even when the master control relay is de energized     e If you are using a dc power supply  interrupt the load side rather than  the ac line power  This avoids the additional delay of power supply  turn off  The de power supply should be powered directly from the  fused secondary of the transformer  Power to the dc input and output  circuits should be connected through a set of master control relay  contacts     Publication 1762 UM001B EN P    2 6 Installing Your Controller    Power Considerations    Publication 1762 UM001B EN P    Periodic Tests of Master Control Relay Circuit    Any part can fail  including the switches in a master control relay circuit   The failure of one of these switches would most likely cause an open  circuit  which would be a safe power off failure  However  if one of these  switches shorts out  it no longer provides any safety protection  These  switches should be tested periodically to assure they will stop machine  motion when needed     The following explains power co
128. s are wired in series so that when any of  them opens  the master control relay is de energized  This removes power  to input and output device circuits  Refer to the figures on pages 2 10 and  2 11     ATTENTION    Never alter these circuits to defeat their function since  serious injury and or machine damage could result           NOTE If you are using an external dc power supply  interrupt  the dc output side rather than the ac line side of the    supply to avoid the additional delay of power supply  turn off     The ac line of the dc output power supply should be  fused     Connect a set of master control relays in series with the dc  power supplying the input and output circuits     Place the main power disconnect switch where operators and  maintenance personnel have quick and easy access to it  If you mount a  disconnect switch inside the controller enclosure  place the switch  operating handle on the outside of the enclosure  so that you can  disconnect power without opening the enclosure     Whenever any of the emergency stop switches are opened  power to  input and output devices should be removed     When you use the master control relay to remove power from the  external I O circuits  power continues to be provided to the controller   s  power supply so that diagnostic indicators on the processor can still be  observed     Installing Your Controller 2 9       The master control relay is not a substitute for a disconnect to the  controller  It is intended for any s
129. s for two 24 point controllers    Controller 40 Point Terminal Doors    Catalog Number 1762 RPLTDR40    The 40 point controller terminal door kit consists of   e Four terminal doors    e Four sub terminal covers     Enough doors for two 40 point controllers      Expansion I 0 Replacement Doors    Catalog Number 1762 RPLDR2    The expansion I O door kit consists of   e Two expansion I O terminal doors    e Two expansion I O  bus doors     Expansion I 0 Replacement DIN Latches    Catalog Number 1762 RPLDIN2    The expansion I O DIN latch kit consists of     e Five DIN latches for expansion I O    Expansion I 0 Replacement Door Labels    Catalog Number 1762 RPLDTLBLZ    The expansion I O terminal door label kit consists of     e Four labels each for all available modules    Appendix C       Understanding the  Controller LED Status    Figure C 1 Controller LED Location       Troubleshooting Your System    This chapter describes how to troubleshoot your controller  Topics    include     e understanding the controller LED status    e controller error recovery model    e analog expansion I O diagnostics and troubleshooting    e calling Rockwell Automation for assistance    The controller status LEDs provide a mechanism to determine the current  status of the controller if a programming device is not present or    available     Table C 1 Controller LED Indicators                                                       LED Color Indicates  POWER off No input power  or power error condit
130. sh Button Overtravel   Stop Start Cat  No  700 N24     ai  Limit Switch   ct  e O 6  O Oo  ver          Suppr     MCR  e  MCR 115V ac or    o     i 230V ac  o i 1 0 Circuits  dc Power Supply  Use    NEC Class 2 for UL  Listing  MC        24V de   Lo   Hi      y 10  Line Terminals  Connect to terminals of Power Circuits    Supply  1762 L24AWA  1762 L24BWA   1762 L40AWA  and 1762 L40BWA      Line Terminals  Connect to 24V de terminals of  Power Supply  1762 L24BXB and 1762 L40BXB      Publication 1762 UM001B EN P    2 12 Installing Your Controller    Installing a Memory 1  Remove the memory module port cover   Module and or    Real Time Clock       2  Align the connector on the memory module with the connector pins  on the controller        Publication 1762 UM001B EN P    Controller Mounting    Dimensions                         1762 L24AWA  1762 L24BWA  1762 L24BXB    Table 2 1 Controller Dimensions             Installing Your Controller 2 13          1762 L40AWA  1762 L40BWA  1762 L40BXB                   Dimension   1762 L24AWA   1762 L24BWA   1762 L24BXB_   1762 L40AWA   1762 L40BWA   1762 L40BXB  A 90 mm  3 5 in   90 mm  3 5 in    B 110 mm  4 33 in   160 mm  6 30 in    C 87 mm  3 43 in   87 mm  3 43 in    Controller and The controller mounts horizontally  with the expansion I O extending to      the right of the controller  Allow 50 mm  2 in   of space on all sides of the  Expansion 1 0 Spacing controller system for adequate ventilation  Maintain spacing from    enclosure 
131. sing  Description Valid MicroLogix Addressing  File Type Data File Number  Address  0001 to 4096 Read Write Modbus Coil Data space Bit  B  or Integer  N  13 to 255 bits 0 to 4095  10001 to 14096 Read Only Modbus Contact Data space  Bit  B  or Integer  N   3 to 255 bits 0 to 4095  30001 to 30256 Read Only Modbus Input Register space  Bit B  or Integer  N    3 to 255 words 0 to 255  30501 to 30532 Modbus Communication Parameters Communication Status  2 words 0 to 31  Files  31501 to 31566 Read Only System Status File space Status  S  2 words 32 to 65  40001 to 40256 Read Write Modbus Holding Register   Bit  B  or Integer  N   3 to 255 words 0 to 255  space  41501 to 41566 Read Write System Status File space  Status  S  2 words 0 to 65                      Publication 1762 UM001B EN P    Understanding the Communication Protocols E 17    ASCII ASCII provides connection to other ASCII devices  such as bar code readers  fj  weigh scales  serial printers  and other intelligent devices     You can use ASCII by configuring the RS 232 port  channel 0 for ASCII    driver  Refer to the MicroLogix 1200 and MicroLogix 1500 Programmable  Controllers Instruction Set Reference Manual  publication   1762 RMO001C EN P for detailed configuration information     When the channel is set to ASCII  the following parameters can be    changed     Table E 6 ASCII Channel Configuration Parameters    Parameter  Description Programming  Software Default  Baud Rate Toggles between the communication rate of
132. switch that are closed when the relay is  de energized or the switch is deactivated  they are open when the relay is  energized or the switch is activated  In ladder programming  a symbol that  allows logic continuity  flow  if the referenced input is logic    0    when  evaluated     normally open   Contacts on a relay or switch that are open when the relay is de energized  or the switch is deactivated   They are closed when the relay is energized  or the switch is activated   In ladder programming  a symbol that allows  logic continuity  flow  if the referenced input is logic    1    when evaluated     off delay time   The OFF delay time is a measure of the time required for the controller  logic to recognize that a signal has been removed from the input terminal  of the controller  The time is determined by circuit component delays and  by any filter adjustment applied     offline  Describes devices not under direct communication     offset  The steady state deviation of a controlled variable from a fixed point     off state leakage current   When an ideal mechanical switch is opened  off state  no current flows  through the switch  Practical semiconductor switches  and the transient  suppression components which are sometimes used to protect switches   allow a small current to flow when the switch is in the off state  This  current is referred to as the off state leakage current  To ensure reliable  operation  the off state leakage current rating of a switch should be les
133. t     workspace  The main storage available for programs and data and allocated for  working storage     write  To copy data to a storage device  For example  the processor WRITEs the  information from the output data file to the output modules     Numerics  1762 24AWA wiring diagram 3 11  1762 24BWA sourcing wiring diagram 3 13  1762 IA8 wiring diagram 3 16  1762 IF20F2   input type selection 3 20   output type selection 3 27   terminal block layout 3 22   wiring 3 22  1762 IF4   input type selection 3 23   terminal block layout 3 24  1762 1016 wiring diagram 3 17  1762 108 wiring diagram 3 17  1762 OA8 wiring diagram 3 18  1762 0B16 wiring diagram 3 19  1762 OB8 wiring diagram 3 18  1762 OW16 wiring diagram 3 20  1762 OW8 wiring diagram 3 79    A    address Glossary 1  Advanced Interface Converter  See AIC   agency certifications 2 1  AIC   applying power to 4 75  attaching to the network 4 75  connecting 4 70  isolated modem 4 4  definition Glossary 1  installing 4 15  modem connections 4 4  recommended user supplied components 4 74  safety consideration 4 75  selecting cable 4 12  analog expansion   0 C 4  diagnostics C 4  module operation vs  channel operation C 4  power up diagnostics C 4  system wiring guidelines 3 20  troubleshooting C 4  application Glossary 1    Index    B  battery 6 2  baud rate Glossary 1  bit Glossary 1  block diagrams Glossary 1  Boolean operators Glossary 1  branch Glossary 1    C    cables  planning routes for DH485 connections E 117  selectio
134. tage applications  the make break ampere rating for relay contacts can be determined by dividing 28 VA by   the applied dc voltage  For example  28VA 48V dc   0 58A  For dc voltage applications less than 14V  the make break    ratings for relay contacts cannot exceed 2A     Analog Modules    Specifications  A 11    Table A 16 General Specifications    Specification  Dimensions    1762 IF20F2 and 1762 IF4    90 mm  height  x 87 mm  depth  x 40 mm  width     height including mounting tabs is 110 mm    3 54 in   height  x 3 43 in   depth  x 1 58 in   width   height including mounting tabs is 4 33 in        Approximate Shipping Weight   with carton     1762 IF20F2  240g  0 53 Ibs    1762 IF4  235g  0 521 Ibs         Storage Temperature     40  C to  85  C   40  F to  185  F        Operating Temperature    0  C to  55  C   32  F to  131  F                 Operating Humidity 5  to 95  non condensing   Operating Altitude 2000 meters  6561 feet    Vibration Operating  10 to 500 Hz  5G  0 030 in  max  peak to peak  Shock Operating  30G       Module Power LED    On  indicates power is applied        Recommended Cable    Belden    8761  shielded        Agency Certification    C UL certified  under CSA C22 2 No  142   UL 508 listed  CE compliant for all applicable directives       Hazardous Environment Class    Class    Division 2  Hazardous Location  Groups A  B  C  D   UL 1604  C UL under CSA C22 2 No  213        Noise Immunity    NEMA standard ICS 2 230       Radiated and Conducted Em
135. ter shows you how to install your controller  The only tools you  require are a flat or Phillips head screwdriver and drill  Topics include     agency certifications   compliance to European Union Directives  installation considerations   safety considerations   power considerations   preventing excessive heat   master control relay   installing the memory module and or real time clock  controller mounting dimensions  controller and expansion I O spacing  mounting the controller   mounting 1762 expansion I O    connecting 1762 expansion I O    UL 508  C UL under CSA C22 2 no  142    Class I  Division 2  Groups A  B  C  D   UL 1604  C UL under CSA C22 2 no  213     CE compliant for all applicable directives    C Tick compliant for all applicable acts     Publication 1762 UM001B EN P    2 2 Installing Your Controller    Compliance to European This product has the CE mark and is approved for installation within the    Union Directives    Publication 1762 UM001B EN P    European Union and EEA regions  It has been designed and tested to  meet the following directives     EMC Directive    This product is tested to meet Council Directive 89 336 EEC  Electromagnetic Compatibility  EMC  and the following standards  in  whole or in part  documented in a technical construction file     e EN 50081 2  EMC   Generic Emission Standard  Part 2   Industrial Environment    e EN 50082 2  EMC   Generic Immunity Standard  Part 2   Industrial Environment    This product is intended for use in an i
136. the  following diagram     to Previous Device       to Next Device    Table 4 4 Connections using Belden  3106A Cable             For this Wire Pair Connect this Wire To this Terminal  Shield Drain Non jacketed Terminal 2   Shield  Blue Blue Terminal 3    Common   White Orange White with Orange Stripe Terminal 4    Data B   Orange with White Stripe Terminal 5    Data A              Table 4 5 Connections using Belden  9842 Cable    For this Wire Pair To this Terminal                            Shield Drain Non jacketed Terminal 2   Shield  Blue White White with Blue Stripe Cut back   no connection    Blue with White Stripe Terminal 3    Common   White Orange White with Orange Stripe Terminal 4    Data B   Orange with White Stripe Terminal 5    Data A    1  To prevent confusion when installing the communication cable  cut back the white with blue stripe wire    immediately after the insulation jacket is removed  This wire is not used by DH485     Publication 1762 UM001B EN P    4 10 Communication Connections    Connecting the AIC     Publication 1762 UM001B EN P    Grounding and Terminating the DH485 Network    Only one connector at the end of the link must have Terminals 1 and 2  jumpered together  This provides an earth ground connection for the  shield of the communication cable     Both ends of the network must have Terminals 5 and 6 jumpered  together  as shown below  This connects the termination impedance  of    120 ohm  that is built into each AIC  as required by the DH
137. the external  wiring connections of the DNI                                                                                                                                                                                                                                                                                                                                                                                                        O  Pho  La Bea     ro ia  DeviceNet Node  Port 1  3   Replacement connector Ly  part no  1761 RPL 0000   lt i my  Use this write on  A oancen  area to mark the   TARK    DeviceNet node cao  address     LD RS 232  Port 2   L    Cable Selection Guide      atte  ee  p     1761  CBL HM02     1761 CBL AM00  Cable Length Connections from to DNI  1761 CBL AM00   45 cm  17 7 in  MicroLogix 1000 port 2  1761 CBL HM02   2m  6 5 ft  L m MicroLogix 1200 port 2    n  a              O a ti S    2    tm  1761 CBL APOO 1761 CBL PM02  Cable Length Connections from to DNI  1761 CBL APOO   45cm 17 7 in  SLC 5 03 or SLC 5 04 processors  port 2  1761 CBL PM02   2m  6 5 ft  channel 0  PC COM port port 2                 1  Series      or higher  cables are required     Publication 1762 UM001B EN P    4 18 Communication Connections    Publication 1762 UM001B EN P    Chapter 5       Trim Pot Operation    Using Trim Pots    The processor has two trimming potentiometers  trim pots  which allow  modification of data within the controller  Adjustments to the trim pots  change t
138. the master device  For use in noisy environments where message packets may  become corrupted in transmission        Pre Transmit Delay   x1 ms        0 to 65535  can be set in 1 ms increments    e When the Control Line is set to no handshaking  this is the delay time before transmission  Required  for 1761 NET AIC physical Half Duplex networks  The 1761 NET AIC needs delay time to change from  transmit to receive mode    e When the Control Line is set to DF1 Half Duplex Modem  this is the minimum time delay between  receiving the last character of a packet and the RTS assertion        Publication 1762 UM001B EN P    Rockwell Software RSLinx 2 0  or  higher   SLC 5 03  SLC 5 04  and  SLC 5 05  or PLC 5 processors  configured for DF1 Half Duplex  Master        Understanding the Communication Protocols E 5    RS 232    E  DF1 Half Duplex Protocol                 HII HT eeeeeee  Modem                                                                               MicroLogix  1000  Slave                                             Mi    12    croLogix MicroLogix  00  Slave  1500  Slave  1747 KE Interface              SLC 5 04  Slave  SLC 5 03 with    Module  Slave     NOTE We recommend using isolation  1761 NET AIC  between    channel 0 of the MicroLogix controller and the modem     Considerations When Communicating as a DF1 Slave on a Multi drop  Link    When communication is between either your programming software and  a MicroLogix Programmable Controller or between two MicroLogi
139. the module ignores the invalid configuration  generates a    non critical error  and keeps operating with the previous configuration     The table below lists the configuration error codes defined for the  module                             Error Codes  Table C 5 Extended Error Codes for 1762 IF20F2  Error Type Hex Module Extended Error Error Description  Equivalent   Error Code  Information Code  Binary Binary  No Error X000 000 0 0000 0000 No error  General Common    X200 001 0 0000 0000 General hardware error  no additional information  Hardware Error  X201 001 0 0000 0001 Power up reset state  Hardware Specific  X210 001 0 0001 0000 Reserved  Error  Configuration Error  X400 010 0 0000 0000 General configuration error  no additional information  X401 010 0 0000 0001 Invalid input data format selected  channel 0   X402 010 0 0000 0010 Invalid input data format selected  channel 1   X403 010 0 0000 0011 Invalid output data format selected  channel 0   X404 010 0 0000 0100 Invalid output data format selected  channel 1                     1  X represents    Don t Care        Publication 1762 UM001B EN P    Table C 6 Extended Error Codes for 1762 IF4    Troubleshooting Your System    C 7                                                       Error Type Hex Equivalent    Module Extended Error Error Description  Error Code   Information Code  Binary Binary   No Error X000 000 0 0000 0000 No error   General Common X200 001 0 0000 0000 General hardware error  no additional informa
140. tion   Hardware Error  X201 001 0 0000 0001 Power up reset state   Hardware  X300 001 1 0000 0000 Reserved   Specific Error   Configuration Error  X400 010 0 0000 0000 General configuration error  no additional information  X401 010 0 0000 0001 Invalid range select  Channel 0   X402 010 0 0000 0010 Invalid range select  Channel 1   X403 010 0 0000 0011 Invalid range select  Channel 2   X404 010 0 0000 0100 Invalid range select  Channel 3   X405 010 0 0000 0101 Invalid filter select  Channel 0   X406 010 0 0000 0110 Invalid filter select  Channel 1   X407 010 0 0000 0111 Invalid filter select  Channel 2   X408 010 0 0000 1000 Invalid filter select  Channel 3   X409 010 0 0000 1001 Invalid format select  Channel 0   X40A 010 0 0000 1010 Invalid format select  Channel 1   X40B 010 0 0000 1011 Invalid format select  Channel 2   X40C 010 0 0000 1100 Invalid format select  Channel 3                                                   1  X represents    Don t Care        Calling Rockwell  Automation for    Assistance    If you need to contact Rockwell Automation or local distributor for  assistance  it is helpful to obtain the following  prior to calling      e controller type  series letter  revision letter  and firmware  FRN   number of the controller    e controller LED status    e controller error codes  Refer to MicroLogix 1200 and 1500  Programmable Controllers Instruction Set Reference Manual   Publication 1762 RM001C EN P for error code information      Publication 1762 UM001B
141. trollers and  expansion I O  It describes the procedures you use to install  wire  and  troubleshoot your controller  This manual     e explains how to install and wire your controllers    e gives you an overview of the MicroLogix 1200 controller system    Refer to Publication 1762 RM001C EN P  MicroLogix 1200 and 1500  Programmable Controllers Instruction Set Reference Manual for the  MicroLogix 1200 and 1500 instruction set and for application examples to  show the instruction set in use  Refer to your RSLogix 500 programming Jj  software user documentation for more information on programming your  MicroLogix 1200 controller     Publication 1762 UM001B EN P    Related Documentation    The following documents contain additional information concerning  Rockwell Automation products  To obtain a copy  contact your local  Rockwell Automation office or distributor     For    Information on understanding and applying micro controllers     Document Number    1761 MMB    Read this Document    MicroMentor       Information on the MicroLogix 1200 Controllers instruction set     MicroLogix 1200 and 1500 1762 RM001C EN P  Programmable Controllers Instruction    Set Reference Manual                Information on mounting and wiring the MicroLogix 1200 MicroLogix 1200 Programmable 1762 INOO6C MU P  Controllers  including a mounting template for easy installation  Controllers Installation Instructions   A description on how to install and connect an AIC   This manual Advanced Interface Con
142. up 3 VAC VDC 3 0 7 through 0 9  Group 0 VAC VDC 0 0 0  Group 1 VAC VDC 1 0 1  Group 2 VAC VDC 2 0 2 through 0 3  Tee TODA Group 3 VAC VDC 3 0 4 through 0 7  Group 4 VAC VDC 4 0 8 through 0 11  Group 5 VAC VDC 5 0 12 through 0 15                Publication 1762 UM001B EN P    3 10    Wiring Your Controller    Sinking and Sourcing  Wiring Diagrams    Publication 1762 UM001B EN P    Table 3 4 Output Terminal Grouping                                        Controller Outputs  Output Group   Voltage Terminal Output Terminal  Group 0 VAC VDC 0 0 0  Group 1 VAC VDC 1 0 1  Group 2 VAC VDC 2 0 2 through 0 3  TBA ROBA Group 3 VAC VDC 3 0 4 through 0 7  Group 4 VAC VDC 4 0 8 through 0 11  Group 5 VAC VDC 5 0 12 through 0 15  Group 0 VAC VDC 0 0 0  Group 1 VAC VDC 1 0 1  1762 L40BXB Group 2 VDC 2  VDC COM 2 0 2 through 0 9  Group 3 VAC VDC 3 0 10 through 0 11  Group 4 VAC VDC 4 0 12 through 0 15                   Any of the MicroLogix 1200 DC embedded input groups can be   configured as sinking or sourcing depending on how the DC COM is  wired on the group  Refer to pages 3 11 through 3 15 for sinking and  sourcing wiring diagrams     Type  Sinking Input    Definition    The input energizes when high level voltage is applied to the input terminal   active high   Connect the power supply VDC     to the input group s COM    terminal        Sourcing Input       The input energizes when low level voltage is applied to the input terminal   active low   Connect the power supply VDC     to the 
143. ure        5 years  0  C to  40  C   32  F to  104  F    40  C to  60  C   40  F to  140  F      1  Stored for six months           ATTENTION  Operating with a low battery indication for more than    14 days may result in invalid RTC data unless power is  on continuously        Using Real Time Clock and Memory Modules 6 3    Memory Module The memory module supports the following features   Operation e User Program and Data Back up   e User Program Compare   e Data File Download Protection   e Memory Module Write Protection    e Removal Insertion Under Power    ATTENTION       Electrostatic discharge can damage the Memory Module   Do not touch the connector pins or other sensitive areas        User Program and Data Back up    The memory module provides a simple and flexible program data  transport mechanism  allowing the user to transfer the program and data  to the controller without the use of a personal computer and  programming software     The memory module can store one user program at a time     During program transfers to or from the memory module  the controller   s  RUN LED flashes     Program Compare    The memory module can also provide application security  allowing you  to specify that if the program stored in the memory module does not  match the program in the controller  the controller will not enter an  executing  run or test  mode  To enable this feature  set the S 2 9 bit in  the system status file  See    Status System File    in the MicroLogix 1200 and  1
144. utton  DCOMM LED on  and be in the  Program mode to allow the download of a new operating system     Publication 1762 UM001B EN P    D 2 Using Control Flash to Upgrade Your Operating System    Sequence of Operation The following steps detail the key events in the upgrade process   1  Controller mode and communications parameters are checked   2  Download begins     3  During the download  the Force  Battery  and Comms LEDs perform a  walking bit pattern     4  When the download is complete  the integrity of the new OS is  checked  If the new OS is corrupt  the controller sends an error  message to the download tool and flashes the Missing or Corrupt OS  LED pattern  See Missing Corrupt OS LED Pattern below     5  Following a successful transfer  the Power  Force  and Battery LEDs  flash on and remain on for five seconds  Then the controller resets     Missing Corrupt OS LED When an operating system download is not successful or if the controller  Pattern does not contain a valid operating system  the controller flashes the Run   Force  and Fault LEDS on and off     Publication 1762 UM001B EN P    Appendix E       RS 232 Communication  Interface    DF1 Full Duplex  Protocol    Understanding the Communication Protocols    Use the information in this appendix to understand the differences in  communication protocols  The following protocols are supported from  the RS 232 communication channel     e DF1 Full Duplex   e DF1 Half Duplex Slave  e DH485   e Modbus   e ASCII    See Ch
145. verter  AIC     1761 6 4   also contains information on network wiring  User Manual   Information on how to install  configure  and commission a DNI  DeviceNet    Interface User Manual   1761 6 5  Information on DF1 open protocol  DF1 Protocol and Command Set 1770 6 5 16       Reference Manual       Information about the Modbus Slave protocol     Available from Schneider  Automation  Inc     Modbus Protocol Specifications          In depth information on grounding and wiring Allen Bradley Allen Bradley Programmable 1770 4 1  programmable controllers  Controller Grounding and Wiring   Guidelines  A description of important differences between solid state Application Considerations for SGI 1 1    programmable controller products and hard wired electromechanical  devices     Solid State Controls          An article on wire sizes and types for grounding electrical  equipment     National Electrical Code   Published by the National Fire Protection  Association of Boston  MA           A complete listing of current documentation  including ordering Allen Bradley Publication Index SD499   instructions  Also indicates whether the documents are available on   CD ROM or in multi languages    A glossary of industrial automation terms and abbreviations  Allen Bradley Industrial Automation   AG 7 1  Glossary             Publication 1762 UM001B EN P    Common Techniques  Used in this Manual    Rockwell Automation  Support    P 3    The following conventions are used throughout this manual  
146. walls  wireways  adjacent equipment  etc   as shown below        Top     lt q a          MicroLogix  1200       Side    1762 I O  1762 I O  1762 I O                Bottom     lt i  E       Publication 1762 UM001B EN P    2 14 Installing Your Controller       Mounting the Controller MicroLogix    1200 controllers are suitable for use in an industrial    Publication 1762 UM001B EN P    environment when installed in accordance with these instructions   Specifically  this equipment is intended for use in clean  dry environments   Pollution degree 2  and to circuits not exceeding Over Voltage  Category II   IEC 60664 1      ATTENTION Do not remove the protective debris shield until after the  controller and all other equipment in the panel near the    controller are mounted and wiring is complete  Once  wiring is complete  remove protective debris shield   Failure to remove shield before operating can cause  overheating        debris shield                   ATTENTION    inside the controller  Do not touch the connector pins or  other sensitive areas     Electrostatic discharge can damage semiconductor devices       NOTE For environments with greater vibration and shock    concerns  use the panel mounting method described on  page 2 16  rather than DIN rail mounting      1  Pollution Degree 2 is an environment where  normally  only non conductive pollution occurs except that occasionally a  temporary conductivity caused by condensation shall be expected    Over Voltage Category Il
147. x  Programmable Controllers via a slave to slave connection on a larger  multi drop link  the devices depend on a DF1 Half Duplex Master to give  each of them permission to transmit in a timely manner  As the number of  slave devices increase on the link  up to 254   the time between when  your programming software or the MicroLogix Controller is polled also  increases  This increase in time may also be large if you are using low  baud rates     As these time periods grow  the following values may need to be changed  to avoid loss of communication      programming software  increase poll timeout and reply timeout values    e MicroLogix Programmable Controllers  increase poll timeout and reply  timeout values    Publication 1762 UM001B EN P    E 6 Understanding the Communication Protocols    Publication 1762 UM001B EN P    Tria    a program download is started when using DF1 Half  Duplex but then is interrupted  due to electromagnetic    interference or other events  discontinue communications  to the controller for the ownership timeout period and  then restart the program download  The ownership  timeout period is 60 seconds  After the timeout  you can  re establish communications with the processor and try  the program download again  The only other way to  remove program ownership is to cycle power on the  processor     Using Modems with MicroLogix 1200 Programmable Controllers    The types of modems you can use with MicroLogix 1200 controllers  include dial up phone modem
    
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