ACC-35B_____________________________JTHW Local
Contents
1. CONNECTORS J1 JTHW on Acc 35A amp Acc 35B Pin Symbol Function Description Notes 1 GND Common PMAC Common 2 GND Common PMAC Common 3 DATO Output Data Bit 0 4 SELO Input Address Line 0 5 DATI Output Data Bit 1 6 SEL 1 Input Address Linel 7 DAT2 Output Data Bit 2 8 SEL2 Input Address Line 2 9 DAT3 Output Data Bit 3 10 SEL3 Input Address Line 3 11 DAT4 Output Data Bit 4 12 SEL 4 Input Address Line 4 13 DAT5 Output Data Bit 5 14 SELS5 Input Address Line 5 15 DAT6 Output Data Bit 5 16 SEL6 Input Address Line 6 17 DAT7 Output Data Bit 6 18 SEL7 Input Data Bit 7 19 N C Not connected 20 GND Common PMAC Common 21 N C Not connected 22 GND Common PMAC Common 23 N C Not connected 24 GND Common PMAC Common 25 5V Input 5Vdc Supply 26 N C Not connected On ACC 35A this header should be connected to PMAC s J3 JTHW via the supplied 26 pin flat cable On ACC 35B this header should be connected to the remote I O board s Connectors 15 Accessory 35B TB1 on ACC 35A Option 2 amp TB2 on ACC 35B Option 2 38 pin Terminal Block Pin Symbol Function Description Notes 1 BSELO Input Diff Address Line 0 2 BDATO T O Diff Data Line 0 3 BSEL1 Input Diff Address Line 1 4 BDATI T O Diff Data L2. 10 Multiplex Address Selection Accessory 35B Note that the SW1 setting on ACC 35A corresponds to the highest addressed remote ACC 34A board 6 But on SW2 the switches 5 4 and 3 are ON which provides for automatic matching of the 3 most significant address lines Also switches 1 and 2 are OFF which provides for the decoding of 4 remote ACC 34As connected to the two ACC 35B remote buffers Finally in this example the setting for the SW1 and SW2 switches on the two remotely stationed ACC 35Bs should be as follows ACC 35B remote buffer board 1 SW1 switch setting ACC 35B SW1 5 SW1 4 SW1 3 SW1 2 SW1 1 Board 1 ON ON OFF ON OFF This means that the highest address decoded for boards connected through this remote buffer is 47 ACC 35B remote buffer board 1 SW2 switch setting ACC 35B SW2 5 SW2 4 SW2 3 SW2 2 SW2 1 Board 1 ON ON ON ON OFF With only SW2 switch 1 OFF this provides for the decoding of two ACC 34As through this particular ACC 35B at addresses 23 39 and 40 47 ACC 35B remote buffer board 2 SW1 switch setting ACC 35B SW1 5 SW1 4 SW1 3 SW1 2 SW1 1 Board 2 ON ON OFF OFF OFF This means that the highest address decoded for boards connected through this remote buffer is 63 ACC 35B remote buffer board 2 SW2 switch setting ACC 35B SW2 5 SW
3. Accessory 35B DELTA TAU Ny Data Systems Inc NEW IDEAS IN MOTION Single Source Machine Control Power Flexibility Ease of Use 21314 Lassen Street Chatsworth CA 91311 Tel 818 998 2095 Fax 818 998 7807 www deltatau com Copyright Information 2003 Delta Tau Data Systems Inc All rights reserved This document is furnished for the customers of Delta Tau Data Systems Inc Other uses are unauthorized without written permission of Delta Tau Data Systems Inc Information contained in this manual may be updated from time to time due to product improvements etc and may not conform in every respect to former issues To report errors or inconsistencies call or email Delta Tau Data Systems Inc Technical Support Phone 818 717 5656 Fax 818 998 7807 Email support deltatau com Website http www deltatau com Operating Conditions All Delta Tau Data Systems Inc motion controller products accessories and amplifiers contain static sensitive components that can be damaged by incorrect handling When installing or handling Delta Tau Data Systems Inc products avoid contact with highly insulated materials Only qualified personnel should be allowed to handle this equipment In the case of industrial applications we expect our products to be protected from hazardous or conductive materials and or environments that could cause harm to the controller by damaging components or causing electri
4. With the jumper E1 installed the 5V supply is also brought out through this connector for ACC 35B With the jumper E1 removed the 5V supply is not brought out to ACC 35B In this case ACC 35B s TB1 should be used for the 5V supply input 16 Connectors Accessory 35B P1 on ACC 35A Option 1 amp P1 on ACC 35B Option 1 DB37 Connector Pin Symbol Function Description Notes 1 BSELO Input Diff Address Line 0 2 BDATO T O Diff Data Line 0 3 BSEL1 Input Diff Address Line 1 4 BDATI T O Diff Data Line 1 5 BSEL2 Input Diff Address Line 2 6 BDAT2 T O Diff Data Line 2 7 BSEL3 Input Diff Address Line 3 8 BDAT3 T O Diff Data Line 3 9 BSEL4 Input Diff Address Line 4 10 BDAT4 T O Diff Data Line 4 11 BSEL5 Input Diff Address Line 5 12 BDATS5 T O Diff Data Line 5 13 BSEL6 Input Diff Address Line 6 14 BDAT6 T O Diff Data Line 6 15 BSEL7 Input Diff Address Line 7 16 BDAT7 T O Diff Data Line 7 17 GND Common PMAC Common 1 18 5V Input 5Vdc Supply 2 19 GND Common PMAC Common 20 BSELO Input Diff Address Line 0 21 BDATO T O Diff Data Line 0 22 BSEL1 Input Diff Address Line 1 23 BDATI T O Diff Data Line 1 24 BSEL2 Input Diff Address Line 2 25 BDAT2 T O Diff Data Line 2 26 BSEL3 Input Diff Address Line 3 27 BDA
5. 8 POWER SUPPLY REQUIREMENTS AND RECOMMENDED WIRING sssesesesseesseroeseseeccoeseseeceoesoscesececoesssoe 13 Power Supply Reg itementS cisneros anei ee aeea aaa e EE ORE EERTE EE EE AGEE 13 Recommended Wiring Between ACC 35A and ACC 35B s eessesseseesssresrsreeresresresrsrrersreerrsrerresrrreresrreesreeresreresee 13 CONNECTORS scscosessssicscectistssscesssasencousscsenssivscssessecsessedsastoassucasesesenasesseesstssessesdnssbusaneccceacesssussuusdesasssastnssensesecesusses ss 15 J LOTHW On Ace 35A 6 Acc IB eiia E ee E ec N 15 TB 1 on ACC 35A Option 2 amp TB2 on ACC 35B Option 2 0 cee eesesessseseceeeeecseeeceaeceeesecaeesecsaeeecsaeeeeeseaeeeeaeens 16 P1 on ACC 35A Option 1 amp P1 on ACC 35B Option 1 ee ecsseeessecsseseceeesecsseseesecsaeeecsaecasesecseesesseeeeesaeeseeneees 17 EB Lon ACC 35B Only enca E E TETE E E ele A SA 18 Table of Contents i Accessory 35B Table of Contents Accessory 35B INTRODUCTION PMAC s Accessory 35A and Accessory 35B are two complementary printed circuit boards These boards are designed to provide differential signal transmission capability between PMAC and most of its accessories that communicate via its JTHW connector Currently this accessory pair enables the following PMAC accessories to communicate with PMAC via long distance cables e ACC 18 the Thumbwheel Mutliplexer Board e ACC 34 the Opto 64 Bit input output Board e ACC 34A the Opto 32 Bit Input 32 Bit Output boar
6. Address Board 3 32 39 ON ON OFF ON ON Remote ACC 34A board 4 SW1 switch setting ACC 34A Port A B SW1 5 SW1 4 SW1 3 SW1 2 SW1 1 Address Board 4 40 47 ON ON OFF ON OFF Remote ACC 34A board 5 SW1 switch setting ACC 34A Port A B SW1 5 SW1 4 SW1 3 SW1 2 SW1 1 Address Board 5 48 55 ON ON OFF OFF ON Remote ACC 34A board 6 SW1 switch setting ACC 34A Port A B SW1 5 Swi 4 SW1 3 SW1 2 SW1 1 Address Board 6 56 63 ON ON OFF OFF OFF ACC 34A Base Address Selection for this Example Board Bytes SW1 Dip Switch Setting Port A Port B 1 2 3 4 5 1 0 3 4 7 ON ON ON ON ON 2 8 11 12 15 ON ON ON ON OFF 16 19 20 23 ON ON ON OFF ON 24 27 28 31 ON ON ON OFF OFF 3 32 35 36 39 ON ON OFF ON ON 4 40 43 44 47 ON ON OFF ON OFF 5 48 51 52 55 ON ON OFF OFF ON 6 56 59 60 63 ON ON OFF OFF OFF Again note that we intentionally did not use bytes 16 to 31 such that the state of SW1 switch 3 remains always OFF This as seen below will simplify the setting of the SW2 DIP switch on ACC 35A and ACC 35B Now with reference to tables 3 the setting on ACC 35A would be as follows ACC 35A local buffer board SW1 switch setting ACC 35A SW1 5 SW1 4 SW1 3 SW1 2 SW1 1 Board 1 ON ON OFF OFF OFF ACC 35A local buffer board SW2 switch setting ACC 35A SW2 5 SW2 4 SW2 3 SW2 2 SW2 1 Board 1 ON ON ON OFF OFF
7. 0000 00001 00011 00111 01111 11111 Setting 1 board 2 boards 4 boards 8 boards 16 boards 32 boards 00000 0 7 XXX XXX XXX XXX XXX 00001 8 15 0 15 XXX XXX XXX XXX 00010 16 23 XXX XXX XXX XXX XXX 00011 24 31 16 31 0 31 XXX XXX XXX 00100 32 39 XXX XXX XRX XXX XXX 00101 40 47 32 47 XXX XXX XXX XXX 00110 48 55 XXX XXX XXX XXX XXX 00111 56 63 48 63 32 63 0 63 XXX XXX 01000 64 71 XXX XXX XXX XXX XXX 01001 72 79 64 79 XXX XXX XXX XXX 01010 80 87 XXX XXX XXX XXX XXX 01011 88 95 80 95 64 95 XXX XXX XXX 01100 96 103 XXX XXX XXX XXX XXX 01101 104 111 96 111 XXX XXX XXX XXX 01110 112 119 XXX XXX XXX XXX XXX 01111 120 127 112 127 96 127 64 127 0 127 XXX 01111 248 255 240 255 224 255 192 255 128 255 0 255 An xxx entry in the table signifies that there is no multiplexer port address for which the card will be enabled Example Suppose we have two local ACC 34As and four remote ACC 34As Furthermore of the four remote ACC 34As one pair is to be physically located a long distance away from the other pair In this example we need one ACC 35A and two ACC 35Bs see schematic diagram With reference to the User s Manual for ACC 34A the SW1 switches on ACC 34As must be set such that each responds to a distinct JTHW memory space Also all of the SW1 and SW2 switches on the ACC 35A and the ACC 35Bs must be set such that the correct decoding of the address lines is accomplished In order to do so the user must decide on the address alloc
8. 2 4 SW2 3 SW2 2 SW2 1 Board 2 ON ON ON ON OFF With only SW2 switch 1 OFF this provides for the decoding of two ACC 34As through this particular ACC 35B at addresses 48 55 and 56 63 Multiplex Address Selection 11 Accessory 35B 12 Multiplex Address Selection Accessory 35B POWER SUPPLY REQUIREMENTS AND RECOMMENDED WIRING Power Supply Requirements The 5V power supply for ACC 35A is brought in from PMAC via the J1 JTHW header ACC 35A s maximum current requirement at 5 volts is approximately 100 mA The 5 volt power supply for ACC 35B may be brought in either from ACC 35A or directly through TB1 If the power is to be brought into ACC 35B from ACC 35A then the jumper E1 on ACC 35A must be installed For situations in which the cable distance between the two accessories is long it is recommended to use TB1 for direct supply of power to ACC 35B ACC 35B s maximum current requirement at 5 volts is approximately 100 mA Recommended Wiring Between ACC 35A and ACC 35B It is recommended that the long cable between ACC 35A and ACC 35B be shielded with the shield grounded at the ACC 35A end Also the differential signal lines should be connected using twisted pair wires see the enclosed schematic Power Supply Requirements and Recommended Wiring 13 Accessory 35B 14 Power Supply Requirements and Recommended Wiring Accessory 35B
9. 255 OFF OFF OFF OFF OFF Note ON CLOSED OFF OPEN To turn off a switch push down on the open side To turn on a switch push down on the numbered side Multiplex Address Selection Accessory 35B SW2 Address Matching Dip Switch Setting DIP Switch Result Switch 5 ON Match bit 7 of JTHW address line with setting on SW1 Switch 5 OFF Do not match let through bit 7 address line Switch 4 ON Match bit 6 of JTHW address line with setting on SW1 Switch 4 OFF Do not match let through bit 6 address line Switch 3 ON Match bit 5 of JTHW address line with setting on SW1 Switch 3 OFF Do not match let through bit 5 address line Switch 2 ON Match bit 4 of JTHW address line with setting on SW1 Switch 2 OFF Do not match let through bit 4 address line Switch 1 ON Match bit 3 of JTHW address line with setting on SW1 Switch 1 OFF Do not match let through bit 3 address line Note ON CLOSED OFF OPEN To turn off a switch push down on the open side To turn on a switch push down on the numbered side ACC 35A B Addressing with Multiple Boards PMAC ACC 35A and 35B boards plus boards that have ACC 35B functionality built in currently ACC 34C and ACC 8DR Rack I O and NC control panel both when connected thru DB 37 cable only have pairs of DIP switch banks SW1 and SW2 that together specify a range of addresses on the JTHW thumbwheel multiplexer port f
10. A is connected to the remote buffer accessory ACC 35B Long cables may be used for this connection However to minimize the effects of electrical noise the differential address and data lines should run as twisted pair and the cable should be shielded Also with the jumper E1 installed the 5V power supply for ACC 35B may be brought out through this connector P1 Option 1 This is a 37 pin DB female header which replaces TB1 on ACC 35A when ordered with its Option 2 Connectors for ACC 35B Refer to the layout diagram of ACC 35B for the location of the connectors on the board A pin definition listing for each connector is provided at the end of this Manual J1 JTHW This 26 pin header provides the link between the remote accessory e g ACC 34A and ACC 35B Using the supplied flat cable the JTHW connector for the remote accessory should be connected to ACC 35B s J1 The bi directional data lines brought in from the remote accessory through this connector are buffered and made differential prior to the long distance transmission via TB2 or P1 Also the differential address lines brought in from PMAC via ACC 35A are converted to single ended signals prior to transmission to the remote accessory In addition to the above signals the 5V power supply for this board may be brought out through this connector for use by the remote accessory s TB2 Option 2 This is a 38 pin terminal block through which ACC 35B is connected to the
11. ACC 35 A or B This is done by matching the data on the address lines with setting of the SW1 switch The tables on the following pages show the possible combinations of SW1 and SW2 settings SW1 address Select Dip Switch Setting Highest Byte Switch 5 Switch 4 Switch 3 Switch 2 Switch 1 Address of address address address address address T O decode for decode for decode for decode for decode for Bit 7 of Bit 6 of Bit 5 of Bit 4 of Bit 3 of JTHW JTHW JTHW JTHW JTHW address address address address address space space space space space 0 7 ON ON ON ON ON 8 15 ON ON ON ON OFF 16 23 ON ON ON OFF ON 24 31 ON ON ON OFF OFF 32 39 ON ON OFF ON ON 40 47 ON ON OFF ON OFF 48 55 ON ON OFF OFF ON 56 63 ON ON OFF OFF OFF 64 71 ON OFF ON ON ON 72 79 ON OFF ON ON OFF 80 87 ON OFF ON OFF ON 88 95 ON OFF ON OFF OFF 96 103 ON OFF OFF ON ON 104 111 ON OFF OFF ON OFF 112 119 ON OFF OFF OFF ON 120 127 ON OFF OFF OFF OFF 128 135 OFF ON ON ON ON 136 147 OFF ON ON ON OFF 144 151 OFF ON ON OFF ON 152 159 OFF ON ON OFF OFF 160 167 OFF ON OFF ON ON 168 175 OFF ON OFF ON OFF 176 183 OFF ON OFF OFF ON 184 191 OFF ON OFF OFF OFF 192 199 OFF OFF ON ON ON 200 207 OFF OFF ON ON OFF 208 215 OFF OFF ON OFF ON 216 223 OFF OFF ON OFF OFF 224 231 OFF OFF OFF ON ON 232 239 OFF OFF OFF ON OFF 240 247 OFF OFF OFF OFF ON 248
12. T3 T O Diff Data Line 3 28 BSEL4 Input Diff Address Line 4 29 BDAT4 T O Diff Data Line 4 30 BSELS Input Diff Address Line 5 31 BDATS T O Diff Data Line 5 32 BSEL6 Input Diff Address Line 6 33 BDAT6 T O Diff Data Line 6 34 BSEL7 Input Diff Address Line 7 35 BDAT7 T O Diff Data Line 7 36 GND Common PMAC Common 1 37 5 V Input 5Vdc Supply 2 1 On ACC 35A this signal directly connects to PMAC s digital ground On ACC 35B if power is supplied through TB1 this pin connects the digital ground of PMAC to the digital ground of the power supply input through TB1 of ACC 35B 2 On ACC 35A this supply is directly brought in from PMAC With the jumper E1 installed the 5V supply is also brought out through this connector for ACC 35B With the jumper E1 removed the 5V supply is not brought out to ACC 35B In this case ACC 35B s TB1 should be used for the 5V supply input Connectors 17 Accessory 35B TB1 on ACC 35B only 2 pin Terminal Block Pin Symbol Function Description Notes 1 GND Common PMAC Common 2 5V Power Supply External Supply 1 1 This terminal block should be used to supply power to ACC 35 B whenever the distance between ACC 35A and ACC 35B is longer than a few meters 18 Connectors
13. ation for each local and each remote ACC 34A It is more convenient to cluster the addresses of the I O cards which are local or connected to a particular ACC 35B In this example referring to the User s Manual for ACC 34A it may be decided that the two local ACC 34As will occupy the first and the second 8 bytes on the PMAC s JTHW multiplex memory space This means that their respective SW1 switches will be set as follows Local ACC 34A board 1 SW1 switch setting ACC 34A Port A B Swi 5 SW1 4 SW1 3 SW1 2 SW1 1 Address Board 1 Bytes 0 7 ON ON ON ON ON Local ACC 34A board 2 SW1 switch setting ACC 34A Port A B Swi 5 SW1 4 SW1 3 SW1 2 Swi 1 Address Board 2 Bytes 8 15 ON ON ON ON OFF Multiplex Address Selection 9 Accessory 35B For the remote ACC 34As we intentionally leave the address space for bytes 16 to 31 empty This is done in order to allow us to select a contiguous set of OFF positions for the set of least significant SW1 switches needed for decoding four remote ACC 34As Now the four remote ACC 34As may be set to be occupy bytes 32 to 63 of the JTHW multiplex address as follows Remote ACC 34A board 3 SW1 switch setting ACC 34A Port A B SW1 5 Swi 4 SW1 3 SW1 2 SW1 1
14. brought in from PMAC through this connector They are buffered and made differential prior to the long distance transmission via TB1 or P1 Also the bi directional differential data lines brought in from the remote accessories via ACC 35B are converted to single ended signals prior to transmission to PMAC In addition to the above signals the 5V power supply for this board is brought in through this connector Connectors for ACC35B 3 Accessory 35B ACC 35A Option 1 The DB87S Connector Option J2 U1 Le US U4 J1 ACC 35B Option 1 The DB37S Connector Option Ul Le US U4 J2 Connectors for ACC35B Accessory 35B ACC 35A Option 2 The Terminal Block Cation 33 2 21 2 23 24 2D 26 27 28B 29 3 31 X2 BV A 35 G 37 Le US U4 U5 J1 ACC 35B Option 2 The Terminal Block Option U1 Le US U4 33 2 2A 2 Z 4A 5 26 77 B 2 3 31 V V A 35S 377 Connectors for ACC35B Accessory 35B TB1 Option 2 This is a 38 pin terminal block through which ACC 35
15. cal shorts When our products are used in an industrial environment install them into an industrial electrical cabinet or industrial PC to protect them from excessive or corrosive moisture abnormal ambient temperatures and conductive materials If Delta Tau Data Systems Inc products are directly exposed to hazardous or conductive materials and or environments we cannot guarantee their operation Accessory 35B Table of Contents TINTRODUCTION ME A E EA A E 1 CONNECTORS FOR ACC 35A cscsssssssscssscssssssesssssessssencssssnsscessossoscsssnsssnsnsssssnssssensssssnsssosssssosssssnsssssnessessessosenses 3 WE SAW cose taceses Sc casesdck sat Sata vabees co citse does subebieucbecenspunieates E lahsiiel bese eliveb jade sgeendeansianieees 3 EB Te Opti One 2 EAEE A A A 6 Pl Option I epre coal ensaaubesaacevacehssouasaenetesaacnnsbusdassenvad Cockpuaa E A 6 Connectors for ACC 35B srr aeaaaee aE re EEan E EN ER aE bend EEE ARAE seeeldan hidoueebo andes 6 PORDE a AA EEE E E E E T E A E n che 6 EBD ODMOU 2 si stectancescecceecestetasusswesacntentin 6 PBKD 1101 A E A E AE E E E E E E cmonenecd 6 DBD EE E E E A E E E S A A T dts GcastGs nieeatastaeecaeeeetsl 6 MULTIPLEX ADDRESS MAP SELECTION sssesssseseseeeceesoroeseseeceeoroeoesesecoceosorsesececorseseeesoesororoeseseeoseororseeeeesoeseesesee 7 ACC 35A B Addressing with Multiple Boards sseseeeeeseeeeesesssrsesrerererrsesretereretssrstntetrersentetretsensesretrserteereeersrntte
16. d ACC 35A is the local JTHW buffer board This board should be attached to PMAC s JTHW connector via the supplied 26 pin flat cable ACC 35B is the remote JTHW buffer board One ACC 35B is required per each cluster of the remotely positioned I O accessory boards Note that the recommended cable length for the direct connection of PMAC to any of the above accessories is less than 3 meters 10 feet However by buffering the signals through the ACC 35 pair and by using twisted pair wires with proper shielding cable lengths in excess on 100 meters may be used ACC 35A and ACC 35B are supplied with the following options Option 1 A DB37 connector for communication between the local and the remote buffers Option 2 A 38 pin terminal block connector for communication between the local and the remote buffers this is the default option Option 3 A 6 ft daisy chain JTHW cable with four headers This provides for the connection of up to four I O accessory boards to a single ACC 35 Introduction 1 Accessory 35B Introduction Accessory 35B CONNECTORS FOR ACC 35A Refer to the layout diagram of ACC 35A for the location of the connectors on the board A pin definition listing for each connector is provided at the end of this Manual J1 JTHW This 26 pin header provides the link between PMAC s J3 JTHW and ACC 35A Using the supplied flat cable PMAC s J3 should be connected to J1 The multiplex address lines are
17. ine 1 5 BSEL2 Input Diff Address Line 2 6 BDAT2 T O Diff Data Line 2 7 BSEL3 Input Diff Address Line 3 8 BDAT3 T O Diff Data Line 3 9 BSEL4 Input Diff Address Line 4 10 BDAT4 T O Diff Data Line 4 11 BSEL5 Input Diff Address Line 5 12 BDATS5 T O Diff Data Line 5 13 BSEL6 Input Diff Address Line 6 14 BDAT6 T O Diff Data Line 6 15 BSEL7 Input Diff Address Line 7 16 BDAT7 T O Diff Data Line 7 17 GND Common PMAC Common 1 18 5V Input 5Vdc Supply 2 19 GND Common PMAC Common 20 BSELO Input Diff Address Line 0 21 BDATO T O Diff Data Line 0 22 BSEL1 Input Diff Address Line 1 23 BDATI T O Diff Data Line 1 24 BSEL2 Input Diff Address Line 2 25 BDAT2 T O Diff Data Line 2 26 BSEL3 Input Diff Address Line 3 27 BDAT3 T O Diff Data Line 3 28 BSEL4 Input Diff Address Line 4 29 BDAT4 T O Diff Data Line 4 30 BSELS Input Diff Address Line 5 31 BDATS T O Diff Data Line 5 32 BSEL6 Input Diff Address Line 6 33 BDAT6 T O Diff Data Line 6 34 BSEL7 Input Diff Address Line 7 35 BDAT7 T O Diff Data Line 7 36 GND Common PMAC Common 1 37 5 V Input 5Vdc Supply 2 38 N C Not Connected 1 On ACC 35A this signal directly connects to PMAC s digital ground On ACC 35B if power is supplied through TB1 this pin connects the digital ground of PMAC to the digital ground of the power supply input through TB1 of ACC 35B 2 On ACC 35A this supply is directly brought in from PMAC
18. local buffer accessory ACC 35A Long cables may be used for this connection However to minimize the effects of electrical noise the differential address and data lines should run as twisted pair and the cable should be shielded Also with the jumper E1 installed on ACC 35A the 5V power supply for this accessory may be brought in through this connector P1 Option 1 This is a 37 pin DB male header which replaces TB2 on ACC 35B when ordered with its Option 2 TB1 This is a 2 pin terminal block which may be used to bring in the 5V supply for the logic circuits on ACC 35B With the E1 jumper removed from ACC 35A the 5V supply will not be brought in through J1 to ACC 35B In this case TB1 should be used to bring in the required supply Note that whenever the distance between an ACC 35A and its complementary ACC 35B is long it is recommended to use TB1 to supply the power to ACC 35B In this case the jumper E1 on the ACC 35A board must be removed 6 Connectors for ACC35B Accessory 35B MULTIPLEX ADDRESS MAP SELECTION Each ACC 35 A or B has two sets of DIP switches SW1 and SW2 The 5 bit DIP switch SW1 selects the address space on the PMAC s JTHW multiplex memory space On each ACC 35 A or B the DIP switch SW1 should be set to correspond to the highest addressed remote I O card connected through that particular accessory The 5 bit DIP switch SW2 selects the number of remote I O cards connected to PMAC via a particular
19. or which they are active On an ACC 35A board the active range must include all boards connected to PMAC through this ACC 35A The active range must not include any other board connected directly to the JTHW port whether another ACC 35A and its active range an ACC 34x or an NC control panel On an ACC 35B or board with built in ACC 35B functionality the active range must include all boards connected to PMAC through this ACC 35B and its matching ACC 35A The active range must not overlap with the active range of any other ACC 35B or board with ACC 35B functionality connected to the same ACC 35A The numeric range in the table entry specifies the JTHW thumbwheel multiplexer port address range for which the card is enabled for the specified SW1 and SW2 settings The 5 digit binary numbers for the SW1 and SW settings represent from left to right SWn 5 to SWn 1 most significant to least significant A 0 means CLOSED and a 1 means OPEN on the DIP switch 8 Multiplex Address Selection Accessory 35B The SW1 setting specifies the highest address that can be enabled on this card multiply the SW1 number by 8 and add 7 The SW2 setting specifies the number of cards that are to be enabled minus 1 if the SW2 number is 2 1 as for all settings in this table The table below summarizes the SW1 and SW2 settings for ACC 35A B Swi 0
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