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8500950 XT1121-000 User`s Manual

1. XT112x 000 BOTTOM VIEW TOP VIEW 1O vO TERMINALS TERMINALS TB1 OF TX1 SSSso _ TB4 OF TX4 OOOO LG G BAGO sass z288 9go 990 TB2 OF TX2 TBS OF TX5 OOO OOOD toorn O oN S8858 8686 TB3 OF TX3 EXC PWR O0 0O DEL z z z zZ TB6 OF TX6 cooce z ojl 4 Eggs Z N n man K A G amp G xt OUTPUT SINKS LOAD CURRENT ON 1 ACTIVE LOW OUTPUT RELAY COIL OR SOLENOID DRIVER EXC V LEVEL EXC IS SET PER COIL REQUIREMENT AND MUST BE FROM 6V TO 32V OUTPUTS MAY BE CONNECTED IN PARALLEL FOR GREATER DRIVE CAPABILITY DRIVE HIGH 1 TO ENERGIZE COIL INPUT IS ON 1 FOR p th in4006 ACTIVE HIGH INPUT ONE OF 16 XT112x I O CHANNELS INCLUDE A REVERSE SHUNT DIODE ACROSS COIL TO PROTECT CIRCUIT IN4006 OR EQUIVALENT INCANDESCENT LAMP CONTROL V LEVEL EXC IS SET PER LAMP REQUIREMENT AND MUST BE FROM 6V TO 32V Q LAMP m 3 y 9 in IT S y DRIVE HIGH 1 TO TURN LAMP ON INPUT IS ON 1 FOR ACTIVE HIGH INPUT ONE OF 16 XT112x I O CHANNELS OFF 0 NOTE You must connect EXC to a voltage source from 6 to 32VDC in order to operate the outputs as the
2. LO TERMINALS w amp 2 mi L010 OnO j w Q 10120 rowe m 05 g 0n amp 10140 BD Q13 Oz OE EXC o Poe 3 RTN a EXG OW tt oS DoS o o A XT112x SIMPLE LOOPBACK MONITORING OF OUTPUT FXC EXC CONNECT 6 32V EXCITATION TO POWER OUTPUT DRIVER Y 6 32V0G I O CHANNEL aie OMG Ok 101 a3V DIO 1 OF 161 RTN 1 OF 51 Raa uk PULL LOWY ONE OF 16 XT112 V O CHANNELS SENSE CONTACT CLOSURE NS FXC NO EXCITATION IS REQUIRED TO OPERATE THE INPUT CHANNEL M 1 OF 161 Qo 3 gt EXC Ee I O CHANNEL s TUL u Ripa tun PULL CLOWN RTN 1 OF 51 ONE OF 16 XT112 I O CHANNELS XT112x SIMPLIFIED OUTPUT DRIVEN LOW IS OFF 0 OUTPUT DRIVEN HIGH IS ON 1 INPUT FEEDS BACK THE STATE OF THE OUTPUT XT112x SIMPLIFIED KEEP OUTPUTS TURNED OFF IF USING CHANNEL TO MONITOR AN EXTERNAL SIGNAL AND EXCITATION IS PRESENT DIN FEEDS BACK THE STATE OF THE DIO NOTE You do not need to connect excitation if you are only using the input channels to monitor field inputs Excitation is only required to operate the outputs Acromag Inc Tel 248 295 0880 nes ed ee http www acromag com BusWork
3. Model 4001 112 or Similar 1 METER USB CABLE Model 4001 113 or Similar ae ETHERNET ETHERNET EXAMPLE EMI FILTER INSTALLATION FOR REDUCED EMISSIONS USING BROADBAND FERRITE CABLE CLAMPS SEE NOTE 1 FERRITE CABLE CLAMP FOR USB LAIRD 28A0350 0B2 OR SIMILAR REQUEST ACROMAG 4001 136 USE DOUBLE SHIELDED CAT5e ETHERNET CABLE OR SIMILAR REFER TO ACROMAG 5035 369 3 Foot or 5035 370 15 Foot or L COM TRD855DSZRD RJ45 PATCH CABLES Uh Ol O USB iim SEE NOTE 1 RG RJ45 RIGHT SIDE SEE NOTE 1 MOUNT FERRITE ON CABLE CLOSE TO DEVICE FERRITE CABLE CLAMP FOR VO FERRITE CABLE CLAMP FOR VO LAIRD 2842029 0A2 OR SIMILAR O LAIRD 28A2029 0A2 OR SIMILAR FOR CHANNEL I O POWER AND ETHERNET USE REQUEST ACROMAG 4001 135 REQUEST ACROMAG 4001 135 LAIRD 28A2029 0A2 OR SIMILAR ORDER ACROMAG 4001 135 Me I O CHANNELS O CHANNELS dd VO CHOO 03 2 1 il aa j j f 2 VO CH08 11 i L CE XT MODULE icini a VO CHANNELS VO CHANNELS AS o ce ANY XT111x 000 or XT112x 000 Model FOR USB USE LAIRD 28A0350 0B2 OR SIMILAR p ORDER ACROMAG 4001 136 ORET TIA RETURN excitations A EARTH GROUND RETURN e DORON Aes A gt Si NOTE 1 FOR REDUCED EMISSIONS THE USE OF EMI FERRITE CABLE CLAMPS IS HELPFUL AS SHOWN BUT MAY NOT BE NEEDED BY YOUR APPLICATION CLAMP EVERY S CABLE OR HARNESS TO FROM THE DEVICE AND LOCATE THIS CLAMP AS CLOSE TO THE MODULE AS POSSIBLE rn m ae CABLES MAY SHARE FERRITE CLAMPS BUT IT IS GOOD POLICY
4. A set bit 1 means the output is turned ON sourcing the load Aclear bit 0 means output is turned OFF open Excitation must be provided in order to operate the outputs A read of this register may not reflect the actual output level at the source lead of the mosfet You can read the Input Registers to obtain the actual output source state s via closed loop feedback with Invert Input Logic function set to No or disabled Acromag Inc Tel 248 295 0880 16 Channel Sourcing DIO w USB amp Modbus Ref Addr Description __ Data Type Format Holding Registers 4x References Read Write 40001 0 0000 Set Output State for Group 0 Channels 0 3 Note The outputs of this model are the open sources of p channel mosfet switches with their drain leads held in common to excitation EXC Outputs are pulled down to the I O return RTN via 10KQ resistors The 40001 40004 registers are used to set clear the output state of the corresponding output channel and will trigger the gate of the output mosfet to turn ON or OFF as required Output channels source from output to RTN when turned ON Failure to provide excitation will render the open source outputs inoperable Set Output State for Group 1 Channels 4 7 Set Output State for Group 2 Channels 8 11 40004 3 0003 Set Output State for Group 3 Channels 12 15 Bit 15 4 O Not Used CH2 CH1 CHO 1 Turn Output ON Source L
5. Indicative of a ground fault Only connect to the unit via isolated USB if between earth ground at the PC your I O signal is already earth grounded and earth ground applied at the You can connect without USB isolation if the I O channels when you have I O signal is not already grounded not isolated your USB signals Many Communication Errors Is Ethernet Cable segment The maximum distance between two nodes longer than 100M on an Ethernet network is limited to 100 meters using approved cable is recommended Connection terminal at TB6 23 Status field of software screen indicates Data Transfer Error Unknown Protocol or Timeout Error USB connection was opened Wait 30 seconds after powering up unit before unit had completed its before opening a USB connection via the power on initialization and configuration software To remedy turn established its network power off to the unit close the USB connection configuration software repower the unit then reboot the USB configuration software after unit has completed power on initialization and established its network connection Continuous blinking yellow status LED Watchdog timer has timed out In the absence of a client server relationship over the network such as that formed with i20 or between a Modbus master client and slave server a PLC or HMI and a server module the watchdog will timeout when enabled It can also timeout if a client
6. For example if you are sending this unit s input information to the outputs of another unit or its complimentary active low XT1111 000 model and you wish to invert the ON state logic sent to the target device This only applies to input logic of this model not its output control logic as setting an output to 1 always turns it ON for this model regardless of this option setting Tag Name Up to 8 Characters You can give this I O channel a name to document its purpose if desired This is not used by the firmware and just serves as a convenient label for helping to discern its I O function or application Status This field displays status messages relative to sending and receiving I O parameters to the module Send I O Config Button Click this button to send the entire I O configuration to the device You can choose to do this one time after you have setup all the I O channels individually Note A watchdog timeout is triggered if an established client server relationship to the module is severed by a cable break or power disruption at the client A client server network connection to the module is created for the exchange of data between devices such as that between a Modbus Master and slave an i20 connection or that between a networked PLC HMI or other client device and its target server module Thus a watchdog timeout can only be cleared at the server by first restoring the broken client server relationship Clearing a timeout by
7. You may only reconfigure this module using a USB connection to it with a host PC running Acromag Configuration Software There are no Modbus commands to set configuration parameters for this model as they are only set using a USB connection to a Windows based host PC Below is a small subset of standard Modbus functions supported by this module along with the reference register address group that the function operates on Use these functions to access these registers as outlined in the Register Map for sending and retrieving data The following Modbus functions operate on register map registers to monitor and control module I O CODE FUNCTION REFERENCE 03 03H Read Holding Registers 04 04H Read Input Registers 06 06H Preset Single Register 16 10H Preset Multiple Registers 17 11H Report Slave ID See Below Hidden Function If an unsupported function code is sent to a module exception code 01 Illegal Function will be returned in the response If a holding register is written with an invalid value exception code 03 Illegal Data Value will be returned in the response message You may refer to the Modbus specification for a complete list of possible error codes Note that register mirroring is not supported in the Series XT models XT1121 000 Report Slave ID Example Response FIELD DESCRIPTION Unit ID Echo Unit ID Sent In Query Function Code Byte Count Slave ID Model No gt SIE 000 16 DI O Sourcing Ru
8. connection before attempting to open USB communications with the unit using the XT11xxconfig exe software wait 30 seconds after powering it up to give it time to initialize Note that you do not connect your module to an Ethernet network in order to configure it It is instead configured for network operation by initially connecting to USB and a host PC running model specific configuration software This has the advantage of not having to know the module s IP address setting or having to change the address setting of your network card to match its subnet address in order to talk to it Acromag Inc Tel 248 295 0880 17 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus Device Communication Setup After executing the Acromag Configuration software for this model the screen shown below will appear if you have not already connected to your module via USB note Device Select fields are blank under these conditions Busworks XT Series Device Communication Setup 1 0 Config Test Page i20 Mapping Page Device Select Ethernet Setup Get Programmed Values Active Values Device IP Address 128 1 1 Subnet Address 255 255 255 i Model Gateway Address Serial Number DNS 1 Address Manufacturer DNS 2 Address Status Host Name XT11xx xxx Addressing Method Static O DHCP O Protocol Reboot Module Restore Module to Out of Box condition
9. Earth Ground Connections ssesessesessscessecesssoecescesesoecsscecesoecesoscescecesoscesoeceseecessecesescesseseoe 14 CONFIGURATION SOFTWARE sssssnsnnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnne 15 AUCK OW CU creiria cia aerate one anaes EEEE EEE 15 TECHNICAL REFERENCE CONFIGURATION STEP BY STEP v cssssssssssssssssscssssssesssessesssnsensssesensssesenesaeen 17 GEEEINE CONNECTE aaa E A 17 Device Communication Setup ssssssssossossosossossosssssssossossosossossossssossossossssossossossssossossose 18 I O Configuration amp Test Page ccsccssccsssssscssccssccsscsscccsecesccsccesecesesccusscesesceussseseseceuseees 21 i20 Mapping Page crroriissereirn iE nnen EENE EE EEEE EEE 23 Network Home Page sesessesessecessecescsceseececosoecesoecescecescecesoecesoecessecesesceseeceseecesesoeseesesesoeoe 25 BLOCK DIAGRAM oea EE EAE EAST 27 How IE WOKS oth see Succ ttccce cnectestt a an O EE res 27 About Modbus TCP IP snsneososososososososososososososososososososososososososososososososososososososososososososos 28 IP AdO eS SN nonis TE E E EEE EE ie 29 Dynamic Host Configuration Protocol DHCP csccsccsssscsscscccceccsccscescsscscescscescescsceccucees 30 Domain Name System DNS cscsscsccsssscsccsccsceccsccsceccsccscescsccscescssescescscescescscescescscesccees 30 MODBUS REGISTERS saeco sea caicencseeceannecucestcessatweueessocdisnesenenseuansiecaseesaueseseeest 31 PESCRIP TION acocasee c
10. MICROCONTROLLER BOARD PLUG IN XT112x 000 BUS CONN BOTTOM VIEW TOP VIEW i Dnc E 1 0 VO 2 NC TERMINALS TERMINALS 3 NG eee D OPATED FONTE SOSSs TB1 OF TX1 TB4 OF TX4 i OO O 0000 O szog 2 8 3 SSSss 8588 FLYBACK i SSSS 1B2 oF 1x2 TBS OF TX5 CONVERTER H OOM QO OO t OR o ON 8888 222g S TB3 OF TX3 EXC PWR QOOL ODO DJL zZ zZ zZ zZ TB6 OF BA z o u coee Eg Ig H A N ISOLATED POWER OUTPUT CHANNELS AND INPUT CHANNELS CONNECT IN TANDEM OUTPUTS ARE OPEN SOURCE P CHANNEL MOSFET SWITCHES w 10K PULL DOWNS TO RETURN INPUTS ARE BUFFERED NON INVERTING AND USE TTL THRESHOLDS POWER AND NETWORK CONNECTIONS ARE ISOLATED CONNECT EXCITATION TO OPERATE OUTPUTS How It Works This model utilizes 16 smart high side power switches under parallel digital control Key Points of Operation of a 32 bit microcontroller These switches integrate a P channel power mosfet at each channel to provide open source switching of excitation sourcing to a load Unit is DC Powered Each source is pulled down to the I O Return via 10KQ pull down resistors Each 1 O amp USB are Isolated from source is also fed back to the controller through a 100KQ series resistor which
11. a ground loop is cause a ground loop between a created between a grounded input signal grounded I O signal and earth source and earth ground of the PC USB port ground at the connected For this reason and for increased safety and Personal Computer s USB port noise immunity it s best to connect to USB Before attempting repair or replacement be sure that all installation and configuration procedures have been followed and that the unit is wired properly Verify that 12 32V power is applied to the unit If your problem still exists after checking your wiring and reviewing this information or if other evidence points to another problem with the unit an effective and convenient fault diagnosis method is to exchange the questionable unit with a known good unit Acromag s Application Engineers can provide further technical via a USB isolator Use an isolator like the Acromag USB ISOLATOR Otherwise use a battery powered laptop which does not normally earth ground its USB port assistance if required Repair services are also available from Acromag Software Fails to Detect Module Bad USB Connection Recheck USB Cable Connection USB has not enumerated the Use the reset button on the Acromag USB device isolator to trigger renumeration of the module or simply unplug and replug the USB cable to the module Close the current connection with the software then select and re open the and the configuration softwar
12. for switching AC and DC devices of higher voltage current the coil ratings for the interposing relay shall not exceed 24VDC 100mA Acromag Inc Tel 248 295 0880 42 http www acromag com BusWorks Model XT1121 000 General Note You must connect EXC to operate outputs Input only operation does not require Excitation Power 16 Channel Sourcing DIO w USB amp Modbus Excitation Required for Output Operation Excitation must be from 6 32V and 52mA minimum at 32V This external voltage is required between the I O EXC and RTN terminals 22 and 21 Reverse voltage protection is included The capacity of your excitation supply will depend on the loads and number of channels being loaded For 16 channels at maximum rated load your excitation supply must be able to source 4A Outputs will source the excitation voltage to the load when turned ON and are also powered from it Outputs cannot operate without excitation The EXC terminal is tied in common to the drains of each output channel switch The source leads of each switch are pulled down to I O return via 10KQ pull down resistors and drive the output load You do not need excitation to operate the inputs of this model only the outputs I O Pull Downs Individual I O channels have 10KQ pull downs to I O return and will never float The installed resistor is one element of a four element isolated SIP resistor 8 pins and rated to 0 3W per element up to 70 C refer to Bourns 430
13. inputs to monitor field signals Outputs of this model require excitation from 6 32V 52mA minimum The actual required current capacity will depend on the loads you are driving and your voltage level but at full rated load with 16 channels your excitation supply must be able to deliver up to 4A Connect I O See Excitation Connections N Connect Excitation 3 Connect Power You need to connect power from 12 32V to power this Connect Power module You can choose to connect to Power via terminals on the unit or via Connect optional terminals that make a connection to the module s bus connector PC USB along the DIN rail See Power Connections Current required will vary with voltage level refer to Specifications Your supply must be capable of providing at least twice the maximum rated current for your voltage level Configure 4 Connect to PC via USB Refer to USB Connections of page 10 and connect the module to your PC or laptop using the USB isolator and cables provided in Configuration Kit XT SIP Now that you have made your connections and applied power you can execute the XT11xxConfig exe software to begin configuration of your unit software is compatible with XP or later versions of the Windows operating system Note that the same software is used for both DIO models XT111x 000 with 16 sinking outputs and XT112x 000 with16 sourcing outputs IMPORTANT Allow the unit to fully power up and establish its Ethernet
14. no i2o messages are sent 0 Enabled Enabled Inputs sent every Change Of State COS 5 99sec Disabled Enabled Faster throughput w Inputs sent every interval of update time Enabled Disabled Inputs sent only upon a Change Of State 5 65535sec Disabled Disabled Inputs sent every interval of Update Time 5 65535sec Enabled Disabled Inputs sent every COS AND at every interval of time T gt 99sec Disabled Enabled Invalid Configuration w a long time over an open socket This will work but it is not recommended to keep the socket open for infrequent i20 updates Acromag Inc Tel 248 295 0880 24 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus i20 Mapping Each input group of this device may be mapped to a channel group of another Acromag XT1121 000 or XT1111 000 digital I O module at one or two different IP addresses Subsequent messages will be sent at a periodic rate specified by the update time Note that the target output port channels may still be controlled independently via the network but their state will be overwritten by subsequent mapped messages when enabled It is recommended that you do not control the i20 mapped output ports target channels directly as this could create contention with the i20 control You cannot use the USB software to control the state of outputs that are i2o targets Group Scroll Bar Select consecutive groups of 4 input channels each to be mapped
15. output drivers are powered from the excitation supply IMPORTANT Add Protection with Inductive Loads Outputs do include internal reverse bias shunt diodes to help protect the output switch from damage due to high reverse bias voltages generated when switching inductive loads But you should add external protection near the inductive load to prevent these transients from being sent along the connection wires Place a diode 1N4006 or equivalent across an inductive load with the cathode to and the anode to For greater drive capability or for switching AC loads it is common to use an appropriately rated interposing relay Add protection local to the relay as noted above when driving inductive relay coils Per UL when the outputs are used to drive interposing relays for switching AC or DC Acromag Inc Tel 248 295 0880 2 devices of higher voltage current the coil ratings for the interposing relay shall not exceed 24VDC 100mA http www acromag com BusWorks Model XT1121 000 EMI Filter Installation 16 Channel Sourcing DIO w USB amp Modbus For low CE rated radiated emissions the use of split snap on ferrite cores on all cables or harnesses to from the device as shown in the drawing on the next page is helpful Use Laird 28A2029 0A2 or similar for I O Ethernet and Power order Acromag 4001 135 and Laird 28A0350 0B2 or similar for USB cables Acromag 4001 136 Locate this ferrite by clamping it outside o
16. replacement cable for connection between the USB isolator and the TT230 module It is normally included in XT SIP Note that software for all XT Series models is available free of charge online at www acromag com Acromag Inc Tel 248 295 0880 39 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus DIN Rail Bus Connector Kit DIN RAIL BUS ne eee Bus Connector Kit for DIN Rail Bus Connection to Power Model XTBUS KIT FEMALE 1005 220 MALE 1005 221 16 a This kit contains one each of the following terminals 1D I E 12 ae e DIN Rail Bus Connector 1005 070 for 22 5mm XT Modules identical to the CONNECTOR fra CONNECTOR one already provided with your XT module ee e Left Side terminal block female connector 1005 220 WITH XT MODULE e Right Side terminal block male connector 1005 221 Your module was shipped with the first item included in this kit the DIN Rail Bus Connector 1005 070 and this kit offers a spare Left and right side terminal blocks that mate directly to the bus connector are included in this kit These terminals are used to optionally or redundantly drive power to Series XT modules via their DIN rail bus connector They are also used to optionally connect the I O to Excitation along the DIN rail for some XT models XT111x 000 This also allows modules to neatly and conveniently share connections to Power and or Excitation Low EMI Double Shielded Patch
17. to combat digital upset or force a restart following thermal shutdown You can even choose to invert the logic for the If you click on the I O Config Test Page tab a screen similar to the following will appear m EE tandem input channel useful for i2o j operation see below E e Optionally invert the Input Logic eer a a P E Ps e Apply a tag name to the I O channel for oa B ZZ ka reference purposes eae te e Send your channel configuration to the E D Games channel connected unit a inetd oz Chamas Chama Chama channel a l O Test ne i a 5 o o e Gere gemea Games Games After making I O configuration changes you can ee ge anfore a te V0 Samas ee CS use the I O Test controls to verify operation of os topal Pe vpu The L nst t tebatan your I O sie aon be eraai oten fe om cctn e Start Stop polling the input channels e Display the current state of the inputs C e Turn tandem Outputs On Off i20 Mapping If you click the i20 Mapping tab the following screen will appear This model includes a special remote messaging function called i20 for input to output communication This allows it to send its digital input information over the network to digital outputs on another unit or compatible unit without having to hard wire a connection The i20 Mapping Page shown at left is used to setup this feature by specify
18. transient protected e Tandem Input Output channels allow loop back monitoring of outputs e Discrete open source outputs switch up to 32V and 250mA each e Inputs use TTL thresholds and support up to 32V DC e 1 O channels include 10K ohm pull downs to Return RTN e Outputs have built in protection for transients over current over under voltage loss of ground reverse excitation and thermal overload e Failsafe Mode support w Watchdog Timeout Control e Wide range DC power input from 12 32V e Wide ambient temperature operation from 40 C to 70 C e Thoroughly Tested and Hardened For Harsh Environments e Withstands High Shock 25G and Vibration 4G Designed for high density mounting on T type DIN rails XT units may be mounted side by side on 22 5mm centers and plug together for modular expansion with shared power connection along the DIN rail This model will interface with any mix of up to 16 digital inputs and or outputs controlled monitored via a 10 100Mbps Ethernet interface using the Modbus TCP IP application protocol Outputs are open source high side switches that switch excitation up to 32V to the load and source up to 250mA each Inputs are TTL and accept up to 32V The unit is conveniently setup and configured for network operation via a USB connection to a host personal computer running Acromag configuration software It also supports i20 messaging over the network which can link discrete inputs of one unit to outpu
19. which is held in common to the input circuit return of this module Acromag Inc Tel 248 295 0880 14 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus CONFIGURATION SOFTWARE While this is a Modbus TCP IP I O module it can only be configured and calibrated via its Configuration Software over a USB connection to a Windows based PC or laptop USB saves you the trouble of having to already know its IP address setting or having to change the address setting of your network interface card to match its domain in order to communicate with it USB software is contained in a zip file that can be downloaded free of charge from our web site at www acromag com Look for the software zip file 9500462A zip in the Documents and Downloads page for your XT product Initially you will have to answer a few questions to open a user account and download this file to your computer This zip file will extract to an executable file 9500462a exe which installs modelconfig exe executable files in an Acromag subdirectory off the Program Files directory of your PC Note that you must have administrator rights to download and install this software onto your PC or laptop Once you have installed the software be sure to navigate to the Program Files Acromag subdirectory and select the correct modelconfig exe software for your particular module This same software is also included on a CDROM bundled with the Configuration Kit XT SIP
20. 00 C In this case the I O pin is pulled low and the output must be recycled OFF ON to reset the output Under voltage Shutdown Outputs will shut down if their excitation voltage is less than 6 0V 3V 6V threshold Overvoltage Shutdown Outputs will shut down if their excitation voltage exceeds 36V minimum Ground Loss Protection The output automatically turns off if the ground lead is disconnected RTN Output OFF Leakage Current 50uA maximum per channel mosfet only Does not include the input bias current for the tandem digital input see Note below Note The 100KQ series input buffer resistors in combination with the 3 3V voltage diode clamps at the input buffer will tend to increase the off state current with increasing output voltage up to 3 5mA at 32V This is a consequence of the input buffer circuitry being connected in tandem to the output mosfet source lead at every I O channel and the presence of a 10KQ pull down on the input Output ON Current Range O to 250mA DC continuous up to 4 8A total for all 16 channels combined No deration is required at elevated ambient Group one return RTN for each group of 4 outputs Output R ON Resistance 0 502 typical at 0 25A and 25 C 1 002 Maximum Output Response Time 10ms typical Does not include network time The actual switch time will vary with network traffic interrupts and output load Note Per UL when the outputs are used to control interposing relays
21. 0880 38 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus ACCESSORIES Software Interface Package Software Interface Package Configuration Kit Order XT SIP e USB Signal Isolator e USB A B Cable 4001 112 e USB A mini B Cable 4001 113 e Configuration Software CDROM 5041 094 e Single shielded Category 5e STP Ethernet Crossover Cable Green 5 feet long with a drain wire and an RJ45 plug at each end This kit contains all the essential elements for configuring XT network modules Isolation is recommended for USB port connections to these models and will block potential ground loops between your PC and grounded 1 0 signals A software CDROM is included that contains the Windows software used to program the unit USB Isolator USB Isolator Order USB ISOLATOR a e USB Signal Isolator e USB A B Cable 4001 112 e Instructions 8500 900 This kit contains a USB isolator and a 1M USB A B cable for connection to a PC This isolator and cable are also included in XT SIP see above USB A B Cable USB A B Cable Order 4001 112 USB A B Cable 4001 112 This is a 1 meter USB A B replacement cable for connection between your PC and the USB isolator It is normally included with the XT SIP Software Interface Package and also with the isolator model USB ISOLATOR USB A mini B Cable USB A mini B Cable Order 4001 113 e USB A mini B Cable 4001 113 This is a 1 meter USB A miniB
22. 248 295 0880 16 Channel Sourcing DIO w USB amp Modbus The XT1121 000 model denotes a sixteen channel digital I O module with 16 sourcing high side switch outputs and 16 tandem digital inputs for DC voltage applications only This model operates over Ethernet using Modbus TCP IP It is setup and configured using USB It represents another member of the Acromag DIN Rail mounted Busworks family in the XT Series Refer to Model XT1111 000 for a complimentary version with 16 sinking low side switched outputs The trailing 000 model suffix denotes DC powered w CE amp UL cUL Class 1 Division 2 Approvals Individual outputs of this model are open source switches for sourcing excitation to loads up to 250mA and 32V DC each Buffered inputs are TTL compatible and accept voltage levels from 0 32V DC All I O channels include 10KQ resistor pull downs to I O return and do not float Reconfiguration of any XT model will require use of the XT SIP configuration kit ordered separately see Accessories section Models are mounted on standard T Type DIN rail and include plug in terminals Power can be optionally or redundantly bussed along the DIN rail see Power Connections Sixteen active high buffered inputs with a common return connection RTN For DC voltage applications only Inputs are tied in tandem to the output source leads and provide loopback monitoring of the output state With the tandem output turned off
23. 8M 102 103LF parts If your application requires a stronger pull down lower resistance you will have to wire it externally in parallel with your load being careful that you never exceed 250mA of source current per output load plus pull down current Power Supply Connect at TB6 terminals 24 amp 23 and or via the DIN Rail Bus 12 32V DC SELV Safety Extra Low Voltage Observe proper polarity Reverse voltage protection is included Unit can be redundantly powered by connecting power to both the power terminals on the unit and DIN rail bus these power inputs are diode coupled to the same point Current draw varies with power voltage as follows current indicated is with all outputs ON SUPPLY XT112x 000 CURRENT 192mA Typical 211mA Max 151mA Typical 166mA Max 93mA Typical 102mA Max 70mA Typical 77mMA Max CAUTION Do not exceed 36VDC peak to avoid damage to the unit Terminal voltage at or above 12V minimum must be maintained to the unit during operation Power Supply Effect Less than 0 001 of output span effect per volt DC change Acromag Inc Tel 248 295 0880 43 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus USB Interface Unit includes a USB socket for temporary connection to a PC or laptop for the purpose of setup and reconfiguration USB isolation is recommended when connecting to a unit that may also be connected to grounded I O signals The unit does n
24. Acroma THE LEADER IN INDUSTRIAL I O oka BusWorks XT Series 10 100MB Industrial Ethernet I O Modules USB Programmable Modbus TCP IP Model XT1121 000 16 Channel Sourcing Digital I O 16 Digital Inputs amp Tandem High Side Switch Outputs USER S MANUAL ACROMAG INCORPORATED Tel 248 295 0880 30765 South Wixom Road Fax 248 624 9234 P O BOX 437 email sales acromag com Wixom MI 48393 7037 U S A Copyright 2014 Acromag Inc Printed in the USA Data and specifications are subject to change without notice 8500 950D BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus Table of Contents GETTING STARTED DPESCRIP TON aaa EEE EEEE aE 4 KOY FCAT CS ara T 4 ADONCA O Me E A E EA 4 Mechanical Dimensions sesessesesessesessesescesessecescecesssoecesoecesoesesoesesoesesoecesosoeseesesesoecesoesesoeoe 5 DIN Rail Mounting amp Removal ssesessssesessesessecessecesssoecsscecssoecescesesossesoecesoeoeseecesesoeceecesesoeoe 5 ELECTRICAL CONNECTIONS crisan EAE 6 POWER COMM CCHIO INS siruen E E EE E EEE EEA 7 Excitation Connections sscrrrisnernisrernniuindia inin Ear EEE a a 9 USB CONHECO Meee E EE E A 10 Digital Input Connections s ssesessesessecessecesssoecesoecssoecsscecescecesoscessecesosceseecessecesssoesesoeseeseoe 11 Digital Output Connections sesessesessecessecesssoecescecsscesescecesoecesoecessecesoscesseceseecesssoesescesseseoe 12 EMI Filter installati ON eosina A SEAS 13
25. Cable Ethernet Patch Cable 3 feet long Model 5035 369 Ethernet Patch Cable 15 feet long Model 5035 370 This cable is used to connect a module to your network switch Acromag 900EN S005 or equivalent Ethernet switch and is double shielded for lower emissions and increased RFI resistance It has a red low smoke zero halogen jacket and bundles four pairs of 26AWG stranded cable It uses a 100 foil shield beneath a 60 braided outer shield and includes an RJ45 plug at each end It is electrically equivalent to L Com TRD855DSZRD cable and can be obtained in other lengths directly from L Com http www com com Double shielded CAT5e or better cable is recommended for very noisy environments or in the presence of strong electrical fields You may obtain shielded CAT 5e cable in other lengths and colors as required for your application from other vendors including L com Connectivity Products www L com com Pro Link www prolink cables com Regal www regalusa com and Lumberg www lumbergusa com Acromag Inc Tel 248 295 0880 40 http www acromag com BusWorks Model XT1121 000 SPECIFICATIONS Model Number Model XT1121 000 Digital I O Module Modbus TCP IP Support 16 Isolated DC I O Channels DC Powered CE Approved Includes UL cUL Class 1 Division 2 approvals Digital Inputs This model has tandem input and output channels Always turn outputs OFF if using inputs to monitor field signals Acromag Inc Tel
26. DED THAT SUPPLIES CAPABLE OF DELIVERING MORE THAN 2 5A TO THE UNIT BE FUSED WITH A HIGH SURGE TOLERANT FUSE CAUTION DO NOT EXCEED 36VDC OR DC POWER DAMAGE TO THE UNIT MAY RESULT FUSE DC SUPPLY 12 32V EARTH GROUND oR EARTH j GROUND HERE HERE GROUND ONE END NOT BOTH IT IS BEST TO APPLY EARTH GROUND CLOSEST TO THE MODULE BUT NEVER AT BOTH ENDS OF THE CONNECTION POWER INPUT IS ISOLATED FROM I O AND NETWORK CIRCUITS DC SUPPLY a 12 32V EARTH FEMALE TERMINAL BLOCK MALE TERMINAL BLOCK GROUND ACROMAG 1005 220 LEFT SIDE CONNECTION ACROMAG 1005 221 RIGHT SIDE CONNECTION IT IS BEST TO APPLY EARTH GROUND CLOSEST TO THE MODULE BUT NEVER AT BOTH ENDS OF THE CONNECTION CAUTION DO NOT EXCEED 36VDC OR DAMAGE TO THE UNIT MAY RESULT NOTE IT IS RECOMMENDED THAT SUPPLIES CAPABLE OF DELIVERING MORE THAN 2 5A TO THE BUS BE FUSED WITH A HIGH SURGE TOLERANT FUSE Acromag Inc Tel 248 295 0880 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus Power Connections eS Note that you can use the bus power connector of the module to interconnect modules by plugging them together and connecting them as a group to a suitable power supply using an optional left or right terminal block 1005 220 or 1005 221 as shown below XT MODEL OPTIONAL BUS POWER WIRING ooo g SS oS oS oS eS Sy le a ng A AL ABKY A C
27. F TX4 I O NOTE IT IS RECOMMENDED THAT SUPPLIES CAPABLE OF DELIVERING MORE THAN 2 5A TO THE UNIT BE FUSED WITH A HIGH SURGE TOLERANT FUSE TB5 OF TX5 I O I O EXCITATION TERMINALS FUSE TB6 OF TX6 EXCITATION DC SUPPLY 6 32V EARTH GROUND HERE OR EARTH L GROUND HERE GROUND ONE END NOT BOTH IT IS BEST TO APPLY EARTH GROUND CLOSEST TO THE MODULE BUT NEVER AT BOTH ENDS OF THE CONNECTION 9 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus USB Connection WARNING The intent of mating USB with this unit is so that it can be conveniently setup and configured in a safe area then installed in the field which may be in a hazardous area Do not attempt to connect a PC or laptop to this unit while installed in a hazardous area as USB energy levels could ignite explosive gases or particles in the air e USB Signal Isolation is Recommended You may use Acromag model USB ISOLATOR to isolate your USB port or you can optionally use another USB signal isolator that supports USB Full Soeed operation 12Mbps e Reconfiguration Does Not Require a Network Connection as it uses a USB connection e Connect Unit to Power Before USB XT SERIES USB MODULE CONNECTIONS USED FOR CONFIGURATION ONLY IN A SAFE OR ORDINARY LOCATION PERSONAL COMPUTER RUNNING WINDOWS OS HOST PC RUNNING ACROMAG CONFIGURATION USB MiniB MALE SOFTWARE USB Mi
28. NOT TO COMBINE ISOLATED GROUPS FOR I O D co IN RAIL SPRING CLIP Acromag Inc Tel 248 295 0880 USE LAIRD 28A2029 0A2 OR SIMILAR FOR USB USE LAIRD 28A0350 0B2 OR SIMILAR 13 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus Earth Ground Connections The unit housing is plastic and does not require an earth ground connection If the module is mounted in a metal housing an earth ground wire connection to the metal housing s ground terminal green screw is usually required using suitable wire per applicable codes Circuits wired to power I O and the network should be earth grounded as reflected in the connection diagrams Note that for I O power and excitation connections it is always best to apply earth ground closest to the module but never at both ends of acable Keeping this connection close to the module allows any destructive transient energy to be safely shunted to earth ground along a short and local low impedance path helping to protect the circuit from damage See the Electrical Connections Drawings for I O power and network ground connections Note A USB isolator is recommended when connected to a grounded Personal Computer for configuration purposes This will avoid a potential ground loop that can occur if your I O signal is already earth grounded as a PC commonly earth grounds its USB port and this makes contact with both the USB signal and shield ground
29. Sanitize MAC ID Status Network Configuration is default Connect your PC to the unit via USB and its model serial information will appear in the Device field as shown in the screen on the next page Device Select If you are connected to more than one unit via a USB hub you can use the Device scroll field to select another unit using the serial information suffix of the Model to discern one unit from another Be sure to close the connection with a previous unit before connecting to a new unit Once you have selected a device click the Open button to open communications with the unit Note Click Open only after a unit is fully powered up and has established its network connection after 30 seconds following power up After clicking Open the selected unit s Model Serial Number Manufacturer and connection status will be displayed as shown on the next page Acromag Inc Tel 248 295 0880 18 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus Device Communication Setup Busworks XT Series Device Communication Setup 1 0 Config Test Page i2o Mapping Page Device Select Ethernet Setup Programmed Values Active values Device xT112x 000 1111208 IP Address 128 1 1 1i 2 100 Subnet Address 255 255 255 255 255 0 Model T112x 000 Gateway Address 128 1 hos Serial Number 1111204 DNS 1 Address 178 2 t 4 M
30. TACTABLN IALATA BRN LALALA YOU CAN OPTIONALLY CONNECT POWER TO THE DIN RAIL BUS CONNECTOR ALONG THE DIN RAIL USING THE OPTIONAL TERMINALS AS SHOWN MODULES MAY INTERCONNECT TO SHARE POWER BETWEEN MODULES ial oa lt lt DIN Rail Bus Connector Acromag 1005 063 35mm DIN Rail MALE 1005 221 RIGHT SIDE CONNECTOR LEFT SIDE CONNECTOR SHIPS WITH MODULE Acromag Inc Tel 248 295 0880 8 http www acromag com BusWorks Model XT1121 000 Excitation Connections 16 Channel Sourcing DIO w USB amp Modbus You must connect excitation to operate the outputs of this model Outputs are high side P Channel Mosfet switches with their drain leads connected in common to Excitation and their source leads pulled down to Return via 10KQ resistors Connect DC excitation from 6 32V as shown in the drawing below Observe proper polarity excitation is reverse polarity protected For excitation connections use 14 AWG wire rated for at least 80 C Do not exceed 36V DC peak MODEL XT112x 000 EXCITATION WIRING I O EXCITATION IS DC ONLY AT 6 TO 32V RIGHT SIDE TB1 TB2 TB3 DIN RAIL SPRING CLIP Acromag Inc Tel 248 295 0880 XT112x 000 WIRING EXCITATION TO MODULES RIGHT EDGE VIEW OUTPUTS ARE OPEN SOURCE HIGH SIDE SWITCHES AND THEIR SOURCE LEADS ARE PULLED DOWN TO RETURN VIA 10K OHM RESISTORS YOU MUST CONNECT EXCITATION TO OPERATE THE OUTPUTS TB4 O
31. anufacturer cromag Inc DNS 2 Address 128 1 1 Status Device opened successfully Host Name XT112x xxx Addressing Method Static ObHcP O Protocol Reboot Module Restore Module to Out of Box condition Sanitize MAC ID 52 4F 42 45 52 54 Status Wo Error Network Status OK Protocol MB TCP Configuration is from opened device Device Select You can use the Reboot Module button to force a reset of the unit equivalent to a power on reset You can use the Restore Module button to restore a module to its initial out of box configuration Ethernet Setup You can use the Get button to retrieve the current Ethernet setup of the connected module sometimes the Active Values fields will indicate zeros and you must click Get to retrieve the actual active values You use the Ethernet Setup portion of the screen shown above to specify the network communication parameters required to communicate with this module over Ethernet You may have to consult with your network administrator to complete the contents of this page The function of these parameters are defined below An IP Address is a unique identification number for any host this module on any TCP IP network including the internet The IP address is made up of four octets 8 bits each octet having a value between 0 255 OOH FFH It is expressed here in decimal form with a period placed between octets The Subnet Mask is used to
32. ate and or cyclically at the update time specified IMPORTANT i20 refers to an Acromag proprietary method of input to output communication done over the network without other hard wired connections between inputs and outputs This is not a Modbus TCP IP function and the i2o mapping feature of this model may only be configured via this software As such there are no Modbus registers for specifying i20 parameters Under normal operation this module is designed to function as a Modbus TCP IP slave server By the Modbus standard Modbus servers are not allowed to initiate messages on their own and may only respond to client master requests Thus the i20 functionality of this unit is a special application that may cause confusion for some other master client devices linked to the same network In any case other master devices on a network should be restricted from attempting to control i20 target devices on the same network to avoid contention Acromag Inc Tel 248 295 0880 23 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus i20 Mapping With i20 a client server network connection is established between a sending module client and a target output module server This connection refers to an established data path or socket between the client input device and server output it does not refer to just the physical network connection between devices It is similar to other client server network c
33. ausb selec inser caret E EE E E 44 ELNEENET INTEMT ACO siccicatetsessutn tenders onceacuisiacstaledveseeouisaieitoncoisviniuesieluidacevenieein i asereiaadsaetnl ans 45 Enclosure Be PHYSICA icceeuccuciuGateancaeele siuteocaceceuncuecun on caes cacedeaeesuwcacuas cose ieuaesieereiueluauae ma ceeeuaeies 45 EAVIFONIMEN Cal aisciai 46 Agency AD Dl OV ANS eesmine E T E seaeincenteneies 47 Reliability PREGICTION secscsccaiiarscascasnlasacscevsasiannsanabisuwsaasaealteuesaeoresieeatanstieensonediatiagntaneresnueiaaas 47 Configuration ControlScan a icc een eee 47 All trademarks are the property of their respective owners IMPORTANT SAFETY CONSIDERATIONS You must consider the possible negative effects of power wiring component sensor or software failure in the design of any type of control or monitoring system This is very important where property loss or human life is involved It is important that you perform satisfactory overall system design and it is agreed between you and Acromag that this is your responsibility The information of this manual may change without notice Acromag makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose Further Acromag assumes no responsibility for any errors that may appear in this manual and makes no commitment to update or keep current the information contained in this manual No part of this manual m
34. ay be copied or reproduced in any form without the prior written consent of Acromag Inc Acromag Inc Tel 248 295 0880 3 http www acromag com BusWorks Model XT1121 000 GETTING STARTED DESCRIPTION Key Features P Application 16 Channel Sourcing DIO w USB amp Modbus The XT1121 000 is a Modbus TCP IP network control module for interface with up to 16 channels of digital input output for high side sourcing applications This unit is setup and configured for network communication via a USB connection to any Windows based PC Windows XP and later versions only The unit provides I O isolation from network amp power e CE Approved UL cUL Class 1 Division 2 Approved e Designed and Manufactured with High Quality High Reliability with AS9100 Aerospace Quality ISO9001 e Modbus TCP IP Protocol Support and w i20 Messaging Support e Conveniently setup and configured w Windows software via USB e High Density 22 5mm wide package with pluggable front facing terminals e Dual Isolated 10 100Mbps Ethernet ports w Auto Negotiation offers convenient daisy chain network connection which saves switch ports e Operation amp Diagnostic LED indicators aide trouble shooting e Bus Power Ready for wired or Redundant power connection along DIN Rail e High 1500VAC Isolation between I O Channels as a group the network including port to port and power e 1 0 power excitation network amp USB ports are all
35. bdivide our Class C network into 14 sub networks of up to 14 possible nodes each With respect to the default settings of this module Subnet Mask 255 255 255 0 11111111 11111111 11111111 00000000 IP Address 192 168 1 100 10000000 00000001 00000001 01100100 Subnet Address 128 1 1 0 1000000 00000001 00000001 00000000 The sub network address of 128 1 1 0 has 254 possible unique node addresses we are using node 100 of 254 possible Nodes O0 10 and 255 are typically reserved for servers and may yield poor results if used Dynamic Host Configuration Protocol DHCP DHCP refers to Dynamic Host Configuration Protocol and is a method used to assign temporary numeric IP addresses as required A DHCP server maintains a pool of shared IP addresses which are dynamically assigned and recycled When a DHCP device wants to use a TCP IP application it must request an IP address from the DHCP server The DHCP server will check the shared supply and if all addresses are in use the server will send a busy signal to the client which tells it to try again later Static IP addresses will ensure a connection every time but dynamic addresses do not Domain Name System DNS DNS refers to the Domain Name System or Domain Name Server and refers to the system used to associate an alphanumeric character string named addresses with a numeric IP address The DNS is actually a distributed database of domain names and corresponding IP addresses These s
36. c ctv ce cc cee saty tie Gueeaudnwecesscatnues S 31 RESISTOR FUNCUIONS cccticcceaccisccccscasececcciscaacetancerartvesccettecsecctedwecoseundencsds EE E 32 DAG VV OCS vara E EE A E E EE A E E E E 33 Reer NIAD nrin E T 33 Acromag Inc Tel 248 295 0880 2 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus TROUBLES HOO TIN Goiriren a OO Diagnostics TANG tance nectesuisatine succes ance sess niennetaeuiowesuasuca a 36 Service amp Repair ASSISCANCE cscncascctnhis cacseisacncabaiavensensaseicuscavaesneessadewuueuemasecanwetedsanses secauateestas 38 Software Interface Package esesessesessesessecessecessecessscesesoecsscecssoeoseoecessesssoecescecessecesesoeeee 39 SSO AUN F aeoaea EEEE E EE EAEE E 39 USB A B Cable niuir a E A T 39 USB AaMini B Cale ciieile E a 39 DIN Rail Bus Connector Kitas sriseasimonian ann A A EA 40 Low EMI Double Shielded Patch Cable sessesessesessssecsssecessecesoecessesesoscessecesseoesssoessssesssseoe 40 Model NUMDEk misraning E Oaa eE 41 Pietarin S annn enn cee cs stats eaters gen ceed cens coho tecierecansuneteores 41 Digital OUTPUTS cxisctccicesistesiversacensilaniesiorsaniauiddestivareaastnslawiesdeoresiaeisdactivatcauseielaniswendveatealeaae 42 GENEL alse adarec duces case vaceuccienu cdc satuceceeecuica salsneeencic ve sal ueeeenos du aneune ieunens 43 POW CP ses cansasteacnstcaes uct eiwnactick cane cectewse vane O A 43 SBME GI ACS cnn scuncenzat cancancauesac
37. cromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus Agency Approvals Electromagnetic Compatibility EMC CE marked per EMC Directive 2004 108 EC Safety Approvals UL Listed USA amp Canada Hazardous Locations Class Division 2 Groups A B C and D Consult Factory Reliability Prediction Reliability Prediction MTBF Mean Time Between Failure MTBF in hours using MIL HDBK 217F FN2 Per MIL HDBK 217 Ground Benign Controlled GgGc MTBF Hours MTBF Years Failure Rate FIT TBD hrs TBD years TBD hrs TBD years Configuration Controls Software Configuration Only via USB Although this module normally operates using Modbus TCP IP over Ethernet it can only be setup and configured via USB Its behavior as a 16 channel digital input output module is determined via program registers set using a temporary USB connection to a host computer or laptop running a Windows compatible configuration software program specific to the model This software provides the framework for digital control of all configuration parameters and this information is stored in non volatile memory LED Indicators RUN Green Located at front panel Constant ON if power is on unit is OK and Ethernet cable is properly plugged in Flashes ON OFF during initialization or if it keeps flashing continuously then it indicates the network board has not initialized perhaps because the network cable is unplugged o
38. ding the module in place from above insert a screwdriver along the bottom side path of the module to the DIN rail clip and use it as a lever to force the DIN rail spring clip down while pulling the bottom of the module outward until it disengages from the rail Tilt it upward to lift it from the rail http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus SERIES XT MODULE DIN RAIL MOUNTING AND REMOVAL TILT MODULE UPWARD TOWARDS RAIL AND HOOK ONTO UPPER LIP OF RAIL ROTATE MODULE DOWNWARD TO ENGAGE SPRING POWER THIS SIDE CLIP ONTO LOWER LIP OF RAIL TOP a A een NIIP e wl Pa BUSWORKS XT 20 O O 35mm DIN Rail SERIES XT MODULE T Rail SPRING CLIP O o OAL HUA Se Fe BOTTOM SCREWDRIVER SLOT FOR REMOVAL FROM T TYPE DIN RAIL USE SCREWDRIVER TO REMOVE MODULE FROM RAIL AS SHOWN ELECTRICAL CONNECTIONS Wire terminals can accommodate 14 26 AWG solid or stranded wire I O wiring may be shielded or unshielded type Terminals are pluggable and can be removed from their sockets by prying outward from the top with a flat head screwdriver blade Strip back wire insulation 0 25 inch on each lead and insert the wire ends into the cage clamp connector of the terminal block Use a screwdriver to tighten the screw by turning it in a clockwise direction to secure the wire use 0 5 0 6nM torque Since common mode voltages can exist on I O wiring adequate wire insulation shou
39. drives the network and input power a non inverting input buffer with its input diode clamped to its 3 3V rail allowing Outputs are connected in tandem input voltages well above the rail up to 32V Input transitions use TTL logic with corresponding inputs thresholds and will feed back the actual state of the tandem output source or an Inputs use TTL Logic input state from the field when its tandem output is turned OFF Network Outputs are Open Source P communication specific to Modbus TCP IP is handled by a separate controller ona channel switches mating communication board serial UART linked to the I O board Power for the I O channels are individually I O and network circuits is provided via an isolated flyback converter on the I O pulled down to Return board that operates from 12 32V The unit is setup for network operation via a USB I O circuit return is common to connection between a host PC and the I O board The host PC runs model specific USB ground configuration software designed for the DIO XT models Refer to the block diagram above to gain a better understanding of how this model works Acromag Inc Tel 248 295 0880 27 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus How it Works The I O amp USB network and input power circuits are isolated from each other The USB port ground is common to the I O circuit return The USB port ground of most PC s is also c
40. e module for communication or simply exit was running the Configuration software and reboot it I O is Erratic Not operational or Intermittent When Connected to USB Missing USB isolation with Even though the I O is isolated from the grounded I O signal source network and power if your input signal is already earth grounded then connecting USB to the module may drive a ground loop between your input and earth ground at the PC Use USB signal isolation or alternatively you can connect to a battery powered laptop PC which does not earth ground its USB connection Outputs Not Working Outputs Not Working Missing EXC connection to You must connect an excitation supply from power which powers the 6 32V to operate the outputs not required output drivers for input only operation Communication or power was lost while USB was connected Acromag Inc Tel 248 295 0880 36 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus Diagnostics Table POSSIBLE CAUSE POSSIBLE FIX Digital Inputs Appear to Register Incorrect State There is contention between If you are monitoring a field digital input you the field input signal and the must turn the channel s corresponding output tandem open source output OFF Check the state of the Invert Input Logic which may be ON or the Invert function Input Logic function is enabled I O Channels Change States when you connect USB
41. e provider and never changes A Dynamic IP Address is an address that is temporarily assigned to a user by a service provider each time a user connects to the network A Subnet is a contiguous string of IP addresses The first IP address in a subnet is used to identify the subnet while the last IP address in a subnet is always used as a broadcast address Anything sent to the last IP address of a subnet is sent to every host on that particular subnet Subnets are further broken down into three size classes based on the 4 octets that make up the IP address A Class A subnet is any subnet that shares the first octet of the IP address The remaining 3 octets of a Class A subnet will define up to 16 777 214 possible IP addresses io 2 AClass B subnet shares the first two octets of an IP address providing 2 _ 2 or 65534 possible IP addresses Class C subnets share the first 3 octets of an IP address giving 254 possible IP addresses Recall that the first and last IP addresses are always used as a network number and broadcast address respectively and this is why we subtract 2 from the total possible unique addresses that are defined via the remaining octet s TIP The first node 0 node 10 and the last node 255 for our example are typically reserved for servers and may yield poor results if used For our example the default IP address of this module is 192 168 1 100 If we assume that this is a Class C network address based on a defa
42. ents by 1 for every host to network data transfer to help indicate if fresh data is present relative to the last transfer or if the unit has halted for some reason i e no longer incrementing This register counts from 0 to 65535 and wraps back around to 0 http www acromag com BusWorks Model XT1121 000 Register Map Note A watchdog timeout is triggered if an established client server relationship to the module is severed by a cable break or power disruption at the client A client server network connection to the module is created for the exchange of data between devices such as that between a Modbus Master and slave or that between a networked PLC HMI or other client device and its target server module Thus a watchdog timeout can only be cleared at the server by first restoring the broken client server relationship Clearing a timeout by restoring the client server connection to the module does not return output s to their initial pre timeout state and they remain in their timeout states until otherwise written via the holding registers or via Output Auto Refresh Note The holding register signal corresponds to the gate signal of the p channel output mosfet the high side switch between Excitation and the load The bit position also corresponds to the output channel number i e output O uses bit O of the 16 bit word at address O output 1 uses bit 1 of the 16 bit word at address 1 etc
43. ervers contain information on some segment of the domain name space and make this information available to clients called reso vers For example the DNS allows us to use Acromag com as an IP address rather than a complicated number string Acromag Inc Tel 248 295 0880 30 http www acromag com BusWorks Model XT1121 000 MODBUS REGISTERS 16 Channel Sourcing DIO w USB amp Modbus Modbus registers are organized into different reference types identified by the leading number of the reference address Read Write Discrete Outputs or Coils A Ox reference address is used to drive output data to a digital output channel 1XXXX Read Discrete Inputs The ON OFF status of a 1x reference address is controlled by the corresponding digital input channel Read Input Registers A 3x reference register contains a 16 bit number received from an external source e g an analog signal Read Write Output or Holding Registers A 4x register is used to store 16 bits of numerical data binary or decimal or to send the data from the CPU to an output channel The Reference leading character indicated above is generally implied by the function code and omitted from the address specifier for a given function The leading character also identifies the I O data type The x following the leading character represents a four digit address location in user data memory Note The ON OFF state of discrete inputs and outputs is represe
44. es However it will still work if the target output module comes online after the input module but may take several minutes to discover the network targets and begin transmitting to them If this input module or the target module s go offline remote i20 messaging will resume on its own when the connection is re established but this healing function may take several minutes depending on which device s went offline why and for how long It is not recommended to set an i20 update rate greater than 99 seconds while also choosing to Keep Sockets Open as increasing bandwidth and shortening response times is not a concern when cyclical messages are spaced farther than 99 seconds apart But be conservative when setting an update time shorter intervals than needed may unnecessarily increase network traffic and longer intervals will conserve network bandwidth Note that digital inputs only map externally to digital outputs of other target modules at different IP addresses and inputs are mapped in groups of four to output channels of the target device in groups of four in the same order Each i20 message will write at least 4 channels at a time To summarize the behavior of i20 is controlled by the configuration of Update Time Change of State and Keep Target Sockets Open as illustrated in the following example combinations O Disabled Enabled i20 is OFF and no i2o messages are sent 0 Disabled Disabled i20 is OFF and
45. f all input output cables or wiring harnesses to from the module USB Ethernet I O group DC power and as close to the module as possible While the use of these ferrites is helpful to obtaining low CE rated emissions it may not be required for your application Note also that cables may share a ferrite but it is not good practice to combine isolated circuits inside the same ferrite Separate isolated circuits for increased safety and greater noise immunity PERSONAL COMPUTER RUNNING WINDOWS OS TO HOST USB PORT HOST USB A MALE a USB A MALE ty P 7 CABLE WIRING HARNESS F TO DEVICE FERRITE CABLE CLAMP USB CABLE jne m dal USB ISOLATOR O Model USB ISOLATOR or Similar HOST PC RUNNING ACROMAG HOST USB SERIAL 5 PORT CONNECTOR USB B MALE Acromag gt CONFIGURATION AT BACK OF PC 1 METER CABLE Pe EEAO SOFTWARE H O to E z MODEL USBISOLATOR z i
46. g its installed firmware Modbus TCP IP Ethernet IP or ProfiNet The Protocol addressing method refers to allowing the particular application protocol specific to this model to set the IP address Profinet generally requires this By default the module is setup to use Static IP Addressing and a default Static IP Address of 192 168 1 100 You can optionally choose to have the IP address assigned dynamically via DHCP but this will additionally require that you specify a valid Host Name to retrieve the address from Choosing Protocol gives the application protocol permission to assign the address You can click the Send button to write your Ethernet Setup parameters to the unit once you are done making your selections This completes any changes made on this page The status field will indicate the status of your sent parameters over USB after clicking Send The Network field will indicate the current network connections status as well as the protocol used for this network The Configuration field will indicate whether the configuration is from an open device or a default configuration You can click the Exit button in the lower right hand part of this screen to exit the Configuration Software or simply click on another tab to access another page before exiting this software Acromag Inc Tel 248 295 0880 20 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus I O Configuration amp Test Pa
47. ge Click the I O Config Test Page tab of the Configuration Software and a screen similar to below will be displayed r Busworks XT1110 Series p File Device Communication Setup I O Config Test Page i20 Mapping Page I O Configure I O Test eet confia O O Channel 0 Channel 1 Channel 2 Channel 3 omt i Channeio channel channei2 Channel 3 O Watchdog Timeout 7 Seconds Channel 4 Channel 5 Channel 6 Channel 7 Watchdog State Off Output Auto Refresh Yes Invert Input Logic No hd Channel 8 Channel 9 Channel 10 Channel 11 Status No Error Channel 12 Channel 13 Channel 14 Channel 15 Send 1 0 Config Start Polling Note You can configure all the I O channels and click the Send I O Config button just once if desired Status 0 in LED OFF 1in LED ON Click Start Polling to poll the inputs The LED next to the button will flash when polling is active Click Stop Polling to discontinue polling the inputs Click the channel buttons to toggle the outputs Note that outputs can only be controlled when there is no I O connection Master PLC i20 etc to this module This page allows you to configure each channel of the unit and optionally Test your I O configuration to verify functionality I O Configure Get I O Config Button Click this button to retrieve the entire I O conf
48. higher voltages and or currents or for controlling AC an interposing relay may be used see Note 16 Channel Sourcing DIO w USB amp Modbus Sixteen open source smart p channel mosfet switches with a common drain connection to Excitation EXC This model provides high side switching between excitation and the load and is intended for DC voltage sourcing applications only The ouputs will drive any rated load with one side connected to ground return Outputs have tandem inputs which provide true loopback monitoring of the output state Individual I O channels are pulled down to I O Return connected at RTN terminal with 10KQ resistors and do not float External excitation is required for output operation and is connected between the EXC and RTN terminals of TB6 terminal numbers 22 and 21 respectively Output OFF Voltage Range 0 to 32V DC Limit voltage to less than 36V peak or damage to the unit may result Use protection when switching inductive loads for example a reverse shunt diode at the inductive load Active Current Limitation The unit limits load current to a shorted load to 0 6A typical 0 4A 0 9A range EXC 13V and 0 010 load resistance This limit works with the latched thermal shutdown to help protect the output channel from damage due to overload Thermal Shutdown Individual outputs will shutdown and latch off for thermal overload conditions that drive the junction temperature into the region from 150 to 2
49. iguration of the module Channel Use the channel scroll bar to select the DIO channel you wish to configure This model has 16 discrete DIO channels and you can configure each individually Watchdog Timeout Specify a time from 5 to 65534 seconds A time of 0 or 65535 will disable the channel s watchdog timer If no channel read or write activity occurs during this period a watchdog timeout will be triggered and the channel will be written to the watchdog state On or Off you specify in the next field Watchdog State This is the state that you want the output to go to following a watchdog timeout see above Output Auto Refresh You can specify that outputs should be rewritten periodically to ensure they maintain their programmed state following a digital upset perhaps by some extraordinary transient event This is also useful to reset an output that may be in a latched thermal shutdown following overload conditions or was set to a specific state by a watchdog timeout that has cleared Acromag Inc Tel 248 295 0880 21 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus 1 O Configure continued Invert Input Logic Note that this model has active high inputs but you can choose to apply an inverter to your input channel by selecting Yes here This can be useful for some i20 operations which allow you to control outputs on another target module over the network with inputs applied here
50. ing the IP address of the target output module to send input channel data to either upon change of state or cyclically at the update time specified e Set the IP address of one or two target devices to send input data to their output channels e Set the Holding Register address to write the input data to at the target e Specify to send data upon change of state or cyclically per an update rate that you specify e Retrieve the current i20 configuration from For a more detailed configuration procedure see the the connected module or send a new Configuration Step by Step section of the Technical Reference on configuration to the connected module page 17 of this manual Acromag Inc Tel 248 295 0880 16 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus TECHNICAL REFERENCE CONFIGURATION STEP BY STEP Getting Connected This section will walk you through 1 Connect I O Refer to Input and Output Connections at the front of this the Connection Configuration manual and connect your I O as required for your application process step by step But before you attempt to reconfigure this 2 Connect Excitation Required for Outputs You cannot operate the output module please make the following channels of this model without connecting excitation across the EXC amp RTN electrical connections terminals on the unit You do not need to provide excitation if you are only using the digital
51. k using a standard web browser but configuration of the unit is only possible using configuration software running on a Windows PC and connected via USB Communication Distance The distance between two devices on an Ethernet network is generally limited to 100 meters using recommended copper cable Distances may be extended using hubs switches or fiber optic transmission However the total round trip delay time must not exceed 512 bit times for collision detection to work properly Port Status Indicator Yellow LED of the network connector indicates network activity Ethernet connection is busy and traffic is present Address The module IP address can be preset static by the user via USB At startup it can be loaded from internal non volatile memory or it can be automatically acquired via a network server using DHCP Dynamic Host Configuration Protocol Refer to Acromag Application Note 8500 734 for instructions on how to change the IP address of your PC network interface card in order to talk to an Acromag Ethernet module General purpose plastic enclosure for mounting on 35mm T type DIN rail Dimensions Width 22 5mm 0 9 inches Length 114 5mm 4 51 inches Depth 99 0mm 3 90 inches Refer to Mechanical Dimensions drawing I O Connectors Removable plug in type terminal blocks rated for 12A 250V AWG 26 12 stranded or solid copper wire Program Connector USB Mini B type 5 pin socket Hirose UX60 MB 5S8 Case Ma
52. ld be used and proper wiring practices followed As a rule I O wires are normally separated from power and network wiring for safety as well as for low noise pickup Acromag Inc Tel 248 295 0880 6 http www acromag com BusWorks Model XT1121 000 Power Connections 16 Channel Sourcing DIO w USB amp Modbus Connect a DC power supply from 12 32V as shown in the drawing below Observe proper polarity input power is reverse polarity protected Optionally the unit may be powered or redundantly powered via its DIN rail connector optional terminal required see below For all supply connections use 14 AWG wire rated for at least 80 C Do not exceed 36V DC peak Be sure to connect earth ground to the DC terminal ideally closest to the module as the other isolated circuits shunt their circuit commons to DC via high voltage isolation capacitors MODEL XT1xxx 000 POWER WIRING UNIT IS DC POWERED ONLY AT 12 TO 32VDC RIGHT SIDE TBI TB4 TB2 TB5 ANY XT MODEL TB3 TB6 DIN RAIL SPRING CLIP OPTIONAL REDUNDANT RAIL BUS POWER 35mm DIN RAIL LEFT RIGHT ANY XT 1xxx 000 RIGHT EDGE VIEW TB4 OF TX4 I O TB5 OF TX5 I O TB6 OF TX6 DC POWER YOU CAN OPTIONALLY CONNECT POWER TO THE DIN RAIL BUS CONNECTOR ALONG THE DIN RAIL USING THE OPTIONAL TERMINALS AS SHOWN DIN RAIL BUS POWER TERMINALS POWERING INDIVIDUAL MODULES VIA SCREW TERMINALS ON UNIT NOTE IT IS RECOMMEN
53. message structure between devices That is Modbus TCP IP combines a physical network Ethernet with a networking standard TCP IP and a standard method of representing data Modbus A Modbus TCP IP message is simply a Modbus communication encapsulated in an Ethernet TCP IP wrapper In practice Modbus TCP embeds a Modbus data frame into a TCP frame sans the Modbus checksum as shown in the following diagram The Modbus checksum is not used as the standard Ethernet TCP IP link layer checksum methods are instead used to guaranty data integrity TCP FRAME Transaction Identifier Protocol Identifier Length Field Modbus Frame ee Modbus Checksum Not Included so Fone bas Ow o Ea MODBUS FRAME Note that the Modbus address field is referred to as the Unit Identifier in Modbus TCP In a typical slave application the Unit ID is ignored and just echoed back in the response Acromag Inc Tel 248 295 0880 28 http www acromag com BusWorks Model XT1121 000 About Modbus TCP IP IP Addressing 16 Channel Sourcing DIO w USB amp Modbus The operation over Ethernet is essentially transparent to the Modbus register command structure If you are already familiar with Modbus or with the Acromag Series 900MB Modbus modules then you are already familiar with the operation of these modules over Ethernet A Static IP Address is as the name implies static That is it is a unique IP Address that is assigned by a servic
54. n Indicator Status FFH ON Firmware Number String 41 63 72 6F 6D 61 67 2C 58 54 31 31 32 31 2D Additional Data Field 78 78 78 2C 39 33 30 30 2D 32 31 37 Acromag XT1121 xxx 9300 216 Note The XT1121 000 slave ID is 2 and the firmware number is 9300 217 Acromag Inc Tel 248 295 0880 32 http www acromag com BusWorks Model XT1121 000 Data Types Register Map The table at right outlines the register map for the Model XT1121 000 network I O module It is very similar to that of its complimentary XT1111 000 network module with 16 active low sinking outputs Note that the memory map for these models only covers I O data as all reconfiguration is done via USB prior to connecting to the network Modbus functions operate on these registers using the data types noted above except for the Report Slave ID functions Unless otherwise noted Holding Register values are not maintained in non volatile flash memory 16 Channel Sourcing DIO w USB amp Modbus I O values for this model are generally indicated by a single bit of a 16 bit word for discrete on off control or indication except for watchdog time which uses an unsigned integer value in range of 0 65535 For discrete I O the bit number position typically corresponds to the discrete channel number for this model Unless otherwise defined for outputs a 1 bit means the corresponding output is closed or ON a O bit means the output is open o
55. ng specified Installation Category Suitable for installation in a Pollution Degree 2 environment with an Installation Category Over voltage Category II rating per IEC 1010 1 1990 Shock amp Vibration Immunity Conforms to IEC 60068 2 6 10 500 Hz 4G 2 Hours axis for sinusoidal vibration IEC 60068 2 64 10 500 Hz 4G rms 2 Hours axis for random vibration and IEC 60068 2 27 25G 11ms half sine 18 shocks at 6 orientations for mechanical shock Electromagnetic Compatibility EMC Minimum Immunity per BS EN 61000 6 2 1 Electrostatic Discharge Immunity ESD per IEC 61000 4 2 2 Radiated Field Immunity RFI per IEC 61000 4 4 3 Electrical Fast Transient Immunity EFT per IEC 61000 4 4 4 Surge Immunity per IEC 61000 4 5 5 Conducted RF Immunity CRF per IEC 61000 4 6 This is a Class A Product with Emissions per BS EN 61000 6 4 1 Enclosure Port per CISPR 16 2 Low Voltage AC Mains Port per CISPR 16 3 Telecom Network Port per CISPR 22 WARNING This is a Class A product In a domestic environment this product may cause radio interference in which the user may be required to take adequate measures Refer to the EMI Filter Installation drawing in the Electrical Connections section of this manual to install ferrite cable clamps that help to reduce radiated emissions The use of low EMI double shielded Ethernet cable is also helpful in curbing emissions Acromag Inc Tel 248 295 0880 46 http www a
56. niB Socket Front Panel of Module CABLE Model 4001 113 oll M ANY XT MODULE HOST TO HOST USB PORT 3 ag T USB AMALE HOST USB SERIAL PORT CONNECTOR AT BACK OF PC USB ISOLATOR RECOMMENDED A icr O INDUSTRIAL mag l 1 METER CABLE PC CONNECT DEVICE CONNECT CABLE Model 4001 112 USB A MALE LED O Power CONNECTION J Refer to Configuration Software Kit Model XT SIP which includes 1 ea Model 4001 113 USB Cable MODEL NO USB ISOLATOR 1 ea Model 4001 112 USB Cable 1 ea Model USB ISOLATOR 1 ea Model XT CONFIG CDROM Software 1 ea Model 5035 360 Ethernet Cable Acromag Inc Tel 248 295 0880 10 http www acromag com BusWorks Model XT1121 000 Digital Input Connections LOGIC TTL MONITOR NS FXG EXC t NO EXCITATION IS REQUIRED TO OPERATE THE INPUT CHANNEL QH gt pereen 16 Channel Sourcing DIO w USB amp Modbus The sixteen active high inputs of this model are already wired to accomplish loopback monitoring of the open source high side switch outputs but may alternately be used to monitor input levels from the field when their tandem outputs are switched OFF Inputs of this model accept voltage signals up to 32V are active high and use TTL thresholds for logic transfer They additionally are pulled down to Return via 10K pull down resistors installed on the board and will never float Observe proper polarity when making I O connection
57. nted by a 1 or 0 value assigned to an individual bit in a 16 bit data word This is sixteen Ox or 1x references per data word With respect to mapping the LSB of the word maps to the lowest numbered channel of a group and channel numbers increase sequentially as you move towards the MSB Unused bit positions are set to zero All O values are accessed via the 16 bit Input Registers or 16 bit Holding Registers given in the Register Map Input registers contain information that is read only For example the current input value read from a channel or the states of a group of digital inputs Holding registers contain read write information that may be configuration data or output data For example the high limit value of an alarm function operating at an input or an output value for an output channel Acromag Inc Tel 248 295 0880 31 http www acromag com BusWorks Model XT1121 000 Register Functions For detailed information on Modbus feel free to download our technical reference 8500 648 Introduction To Modbus at www acromag com You can also find more information specific to Modbus TCP IP by down loading whitepaper 8500 765 Introduction To Modbus TCP IP 16 Channel Sourcing DIO w USB amp Modbus Each module has a default factory configuration as noted in the SPECIFICATIONS section Your application will likely differ from the default configuration and the module will need to be reconfigured for your application
58. oad O Turn Output OFF Open Setting the bit to 1 will drive the corresponding output to source excitation to the load conducts or sinks load current to return Clearing the bit to O means the output will be switched OFF open All input channels are pulled down to return and will not float Unused bits are set to 0 The Invert Input Logic function does not affect output logic Bit 15 4 O Not Used Bit 3 CH7 Bit 2 CH6 Bit 1 CH5 Bit 0 CH4 1 Turn Output ON Source Load 0 Turn Output OFF Open Bit 15 4 O Not Used Bit 3 CH11 Bit 2 CH10 Bit 1 CH9 Bit 0 CH8 1 Turn Output ON Source Load 0 Turn Output OFF Open Bit 15 4 O Not Used Bit 3 CH15 Bit 2 CH14 Bit 1 CH13 Bit 0 CH12 1 Turn Output ON Source Load O Turn Output OFF Open I O channels of this model are pulled down to I O return and will never float The output logic is not affected by the Invert Input Logic function After reset these registers read O outputs OFF and these registers are not maintained in non volatile memory 35 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus TROUBLESHOOTING Diagnostics Table Using Wrong IP Address You must change either the IP address of the module or your host PC network card so that they match their subnet addresses Cannot Communicate with Module via USB A missing USB Isolator could Without a USB isolator
59. ommon to the USB cable shield and earth ground I O signals could be grounded or ungrounded For this reason it is recommended that USB signals be isolated when connected to a PC to prevent a ground loop from occurring between the PC earth ground and a grounded input signal which could have the negative affect of driving a digital upset for severe ground loop currents About Modbus TCP IP TCP IP refers to Transmission Control Protocol and Internet Protocol TCP IP allows blocks of binary data to be exchanged between computers TCP IP is used world wide and is the foundation for the World Wide Web The primary function of TCP is to ensure that all packets of data are received correctly while IP makes sure that messages are correctly addressed and routed Note that the TCP IP combination does not define what the data means or how the data is to be interpreted it is merely a transport protocol Modbus operates on the actual data for this model You can find more information on Modbus TCP IP by visiting our web site and down loading whitepaper 8500 765 Introduction To Modbus TCP IP Modbus is an application protocol It defines rules for organizing and interpreting data and is essentially a messaging structure that is independent of the underlying physical layer It is freely available and accessible to anyone easy to understand and widely supported by many manufacturers Modbus TCP IP uses TCP IP and Ethernet to carry the data of the Modbus
60. onnection Status page shown in the second screen useful for verifying your network connection to the unit and its corresponding communication parameter settings Acromag Inc Tel 248 295 0880 25 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus XT Series WEB Site Windows Internet Explorer Acromag i THE LEADER IN INDUSTRIAL 1 0 XT Series Home Page Communication Parameters C Ethernet Connection Status Windows Internet Explorer Favortes 7 EY ethernet Connection Status Coe Peeps focromag tendwa Acromag 4 THE LEADER IN INDUSTRIAL I O Ethernet Connection Status PROTOCOL Protocol ModbusTCP SOFTWARE Network Interface famvware version 3 2 2 Device Software version 1 1 HARDWARE Mac Address 00 01 3 00 00 56 IP STATUS IP Address 192 168 1 100 Subnet Mask 255 255 255 0 Gatway 192 168 1 10 Primary DNS Server IP address 192 168 1 2 Secondary DNS Server IP address 192 168 1 3 Back Acromag Inc Tel 248 295 0880 26 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus BLOCK DIAGRAM YOU MUST CONNECT EXCITATION TO OPERATE OUTPUTS XT112x 000 SIMPLIFIED SCHEMATIC BUT THIS IS NOT REQUIRED FOR INPUT OPERATION FILTERING AND DETAIL OMITTED FOR CLARITY Exc gt t aa gt ISOLATED NETWORK PORTS ae II MI aia 48WV NETWORK COMMUNICATION
61. onnections that are created for the exchange of data between devices such as that between a Modbus Master and slave or that between a networked PLC HMI or other client device and its target server module This model has 16 DIO channels or four groups of 4 digital I O channels Group 1 refers to digital I O channels 0 1 2 and 3 Group 2 refers to digital I O channels 4 5 6 and 7 Group 3 refers to digital I O channels 8 9 10 and 11 Group 4 refers to digital I O channels 12 13 14 and 15 Each group of 4 input channels may be mapped to a corresponding group of 4 output channels on another XT1121 000 unit or compatible unit like XT1111 000 The digital input data of this unit may be sent cyclically according to an update time and or upon change of state You can choose to maintain this connection by enabling Keep Socket Open or to open and close the connection for each i20 message If Keep Socket Open is disabled then you should specify an i20 Update Time at the client that is less than the watchdog time of the server to ensure that the server s output watchdog does not time out during the period between i20 updates Thus it is generally recommended that you Keep Sockets Open except perhaps where it costs you money to maintain an open connection or if infrequent i20 messages might cause your server s watchdog timer to timeout The i20 messaging function works best if the target module s are already online and ready to receive messag
62. oop with any earth ground applied at its I O which might interfere with operation For this reason we recommend that you always use a USB isolator when making a USB connection to prevent a potential ground loop from affecting performance Otherwise in the absence of USB isolation a battery powered laptop could be used to connect to the unit as the laptop does not normally connect to earth ground Acromag Inc Tel 248 295 0880 44 http www acromag com BusWorks Model XT1121 000 Ethernet Interface Enclosure amp Physical 16 Channel Sourcing DIO w USB amp Modbus Connector Dual shielded RJ 45 sockets 8 pin 10BaseT 100BaseTX The metal shield circuit of the network connectors are isolated and capacitively coupled to the input power minus terminal via an isolation capacitor Network to Network Isolation Network ports are additionally isolated from each other and will withstand HIPOT voltages up to 1500Vrms or 2250V DC Wiring Unit includes auto crossover for MDI or MDI X cables Protocol Modbus TCP IP w USB Configuration IP Address Default mode static IP address is 192 168 1 100 Port Up to 16 sockets supported uses port 502 reserved for Modbus Data Rate Auto sensed 10Mbps or 100Mbps Duplex Auto negotiated Full or Half Duplex Compliance IEEE 802 3 802 3u 802 3x Modbus TCP IP Protocol Support Up to 10 sockets may be selected for Modbus TCP IP The unit includes a built in web page for ID on the networ
63. ot receive power from USB and must already have DC power connected to it when connecting to USB CAUTION Do not attempt to connect USB in a hazardous environment Module should be setup and configured in a safe environment only Data Rate USB 2 0 compatible up to full speed at 12Mbps Transient Protection Unit adds transient voltage protection to USB power and data lines when connected but the unit does not use USB power Cable Length Connection Distance 5 0 meters maximum Driver No special drivers required Uses the built in USB Human Interface Device HID drivers of the Windows Operating System Windows XP or later versions only USB Connector USB Mini B type 5 pin socket Hirose UX60 MB 5S8 DEFINITION 5V Power Transient Protected but Not Used by Module Differential Data PN Differential Data NC Not Connected Power Ground Connects to Signal Ground via ferrite bead Signal Ground Connects directly to Signal Ground Note Most Host Personal Computers except battery powered laptops will connect earth ground to the USB shield and signal ground 1 IMPORTANT USB Isolation is recommended The I O of this module is isolated from each network port and DC power but its I O return is common to its USB connection Most Personal computers except DC powered laptops connect their USB signal and shield ground to earth ground Without a USB isolator an earth grounded USB connection could drive a ground l
64. r OFF For inputs of this model a value of 1 means the input is ON Active high gt 2 0V while a value of O specifies the input is OFF or in its low state asserted low lt 0 8V This assumes that the Input Logic Invert function is set to No or disabled Ref Addr Description ___ Data Type Format Input Registers 3x References Read Only 0 Input State for Bit 15 4 O Not Used 0000 Group O Bit 3 CH3 Channels 0 3 Bit 2 CH2 Bit 1 CH1 Note The 30001 30004 registers Bit 0 CHO reflect the actual state of the 1 ON or High Active High Input corresponding input signal or the Asserted gt 2 0V source of the tandem p channel O OFF or Low Input lt 0 8V output switch This signal is active high A set bit 1 means the input is ON or asserted high A clear bit 0 means the input is OFF or asserted low Additionally unused bits are set to O This only applies if the Input Logic Invert function is set to No or disabled Acromag Inc Tel 248 295 0880 33 http www acromag com BusWorks Model XT1121 000 Register Map There are no registers for setting configuration variables as this model is only configured via USB using its Configuration Software running on a Windows based Personal Computer Configuration should be done prior to connecting to the network It is possible that the input state indicated may not reflect the actual state of the tandem output if the I O channel is expe
65. r defective ST Yellow Located at front panel Blinks if a watchdog timeout has occurred ACT Yellow Located on RJ45 port connector Indicates Ethernet activity the Ethernet connection is busy and traffic is present Refer to Configuration Step by Step in the Technical Reference section of this manual for detailed information on available software control of this model Release Date EGR DOC Description of Revision 26 MAR 2013 BC KLK Initial Acromag release 19 AUG 2013 BO BC KLK CE Approval added 17 OCT 2013 BC KLK Corrected typos screens amp added troubleshooting info 21 FEB 2014 2 CAP ARP Added cULus Mark to this model removed pending Acromag Inc Tel 248 295 0880 47 http www acromag com
66. restoring the client server connection to the module does not return output s to their initial pre timeout state and they remain in their timeout states until otherwise written or via Output Auto Refresh I O Test This portion of the screen allows you to selectively turn outputs on or off and read the current state of the tandem inputs Each channel has a simulated LED lamp that flashes and displays 1 when the corresponding output is ON and is solid dark red and displays O when it is OFF LED state indication accurately reflects the actual state of the output drain as it utilizes the tandem input channel to read back the drain s state Optionally for simple input monitoring of field inputs with corresponding output OFF you can click the Start Polling button to periodically read the digital input states IMPORTANT The open source outputs of this model include tandem input channels that monitor the state of the source lead If your intent is to monitor inputs from the field you must turn the corresponding output OFF or you may generate contention between the field signal and the channel output when it is ON Note that all DIO channels have 10KQ pull downs to Return and do not float You must connect I O Excitation to operate the outputs as they are powered from Excitation Channel Button Toggle Click this button to toggle the corresponding DIO channel output ON or OFF Start Polling Button Toggle Click this button
67. riencing contention between via a field signal and an output that happens to be turned ON If monitoring field signals the corresponding tandem output must be turned OFF to avoid this contention between the output channel and the field signal Acromag Inc Tel 248 295 0880 16 Channel Sourcing DIO w USB amp Modbus fe peseiption L pata Type tormat o ooo o Data Type Format Input Registers 3x References Input Registers 3x References Read Only S 30002 0001 Input State for Group 1 Channels 4 7 30003 0002 Input State for Group 2 Channels 8 11 30004 0003 Input State for Group 3 Channels 12 15 30005 0004 Heart Beat Register 34 Bit 15 4 O Not Used Bit 3 CH7 Bit 2 CH6 Bit 1 CH5 Bit 0 CH4 1 ON or High Active High Input Asserted gt 2 0V O OFF or Low Input lt 0 8V This assumes that the Input Logic Invert function is set to No or disabled Bit 15 4 O Not Used Bit 3 CH11 Bit 2 CH10 Bit 1 CH9 Bit 0 CH8 1 ON or High Active High Input Asserted gt 2 0V O OFF or Low Input lt 0 8V This assumes that the Input Logic Invert function is set to No or disabled Bit 15 4 O Not Used Bit 3 CH15 Bit 2 CH14 Bit 1 CH13 Bit 0 CH12 1 ON or High Active High Input Asserted gt 2 0V O OFF or Low Input lt 0 8V This assumes that the Input Logic Invert function is set to No or disabled An integer counter that increm
68. s Refer to the following figures to wire the inputs of this model IMPORTANT You must keep the tandem output turned off when using the input to sense voltage levels from the field to prevent contention between the field signal and the output channel which may be turned ON Lee XT112x SIMPLIFIED I O CHANNEL KEEP OUTPUTS TURNED OFF IF USING CHANNEL TO MONITOR AN EXTERNAL SIGNAL AND EXCITATION IS PRESENT DIN FEEDS BACK THE SFI ONAL Ron DIO gt o NMa OF 16 RTN Roa 13k PILL CLOWN 1 OF 51 ONE OF 16 XT112 I O CHANNELS STATE OF THE INPUT LOW 0 8 OPTIONAL Rlim CAN BE USED TO PROTECT DRIVER IF TANDEM OUTPUT IS INADVERTANTLY TURNED ON AND EXCITATION IS PRESENT DC VOLTAGE ON OFF MONITOR no A Pp EXC NO EXCITATION IS REQUIRED TO OPERATE THE INPUT CHANNEL Tuk PULL LOWY RTN 1 OF Si ONE OF 16 XT112 I O CHANNELS EXC gt e XT112x SIMPLIFIED VO CHANNEL KEEP OUTPUTS TURNED OFF IF USING CHANNEL TO MONITOR AN EXTERNAL SIGNAL AND EXCITATION IS PRESENT DIN FEEDS BACK THE STATE OF THE INPUT XT112x 000 BOTTOM VIEW m a A 5 EJ ial onoo VO TERMINALS w O Q Ei 4 gt x lt w RNJ N RTN 6 RNO RNO TOP VIEW
69. s Model XT1121 000 Digital Output Connections CONNECT 6 32V EXCITATION TO POWER OUTPUT O XT112x LOGICAL OUTPUT OPERATION EXC D gt gt VO CHANNEL 16 Channel Sourcing DIO w USB amp Modbus The sixteen outputs of this model are open source high side switches between excitation and the load with 10K pull downs to Return RTN Outputs will source excitation to loads at up to 32V and 250mA each You must connect Excitation to operate the outputs Observe proper polarity when making I O connections Refer to the following figures to wire the outputs of this model XT112x SIMPLIFIED OUTPUT DRIVEN LOW IS OFF 0 OUTPUT DRIVEN HIGH IS ON 1 oor oo on 1 ON HIGH 1 ON LOAD SOURCING O OFF LOW 0 OFF O INPUT FEEDS BACK THE VO STATE OF THE OUTPUT 1 OF 16 LOAD RETURN e ONE OF 16 I O CHANNELS e RTN 16x 1 OF 5 SSR SOLID STATE RELAY OR LED DRIVER EX D gt t gt EXC 48wy 6 32V DRIVE HIGH 1 TO ENERGIZE RELAY OR TURN LED ON INPUT IS ON 1 FOR RLIM USED TO LIMIT CURRENT Pim TO THE LED Z 10K PULL DOWN SE O TO LOAD O O SSR N O 1 0 1 OF 16 RTN 1 OF 5 ONE OF 16 XT112x I O CHANNELS ACTIVE HIGH INPUT
70. see Accessories but downloaded from the web will ensure that the software is the most up to date The software is compatible with XP or later versions of the Windows operating system The particular modelconfig exe software for this unit supports five other model variations three models with 16 sinking outputs and active low inputs and three models with 16 sourcing outputs and active high inputs Quick Overview After booting the Configuration software for this model the The initial configuration software screen for this Device Communication Setup page will appear Once you model is shown at left This screen is used to select Select a device and click Open to connect to an XT1121 000 or and identify USB connected units and to configure XT1111 000 model your screen will look similar to the following the Ethernet parameters necessary to communicate over the network There are two other screens that can be selected by clicking their tabs I O Config Test and i20 Mapping A short description of the controls of this page follows Device Select First Connect to the Unit Here e Select from connected modules and Open or Close communication with them e Display the Model Serial Number and Manufacturer of the connected module and report the status of the connection e Reboot a module to force a system reset to the power up state e Restore a module to its initial programmed out of box state Ethernet Setup Setup your Ne
71. server relationship has been severed by a network cable break or power disruption at the client Enabled watchdog timer never times out or only times out initially There is an established client The timer will only time out if a client server server connection socket over connection has not been established or has the network with this module been severed by a cable break Acromag Inc Tel 248 295 0880 37 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus Diagnostics Table ee The upload was corrupted when Although rare if you have rechecked your i20 i20 was written to the module configuration but it fails to operate try rebooting the module or re writing your i20 configuration check your address settings update time change of state etc Service amp Repair Assistance This unit contains solid state components and requires no maintenance except for periodic cleaning The enclosure is not meant to be opened for access and can be damaged easily if snapped apart Thus it is highly recommended that a non functioning module be returned to Acromag for repair or replacement Acromag has automated test equipment that thoroughly checks the performance of each module and can restore firmware Please refer to Acromag s Service Policy and Warranty Bulletins or contact Acromag for complete details on how to obtain repair or replacement Acromag Inc Tel 248 295
72. somewhat So for wireless cellular systems or peer to peer applications with long intervals between update messages you may consider unchecking this box While still possible do not Keep Sockets Open and set update intervals greater than 99 seconds infrequent messaging with long i2o intervals does not need to keep the socket open Status Field USB Gives the status of your USB i20 configuration message i e returns the status of the write or read of the i20 configuration info only Get i20 Config Button Click this button to retrieve the current i20 configuration from the unit See the Status field for the status of this operation Send i2o Config Button Click this button to write your i20 configuration to the unit You may click Send i20 Config for each group one at a time or you can step through all i20 channels and then click the Send i20 Config button one time to write your entire i20 configuration See the Status field for the status of this operation Network Home Page After you have configured your unit for network communications via its USB connection you can identify the unit on the Ethernet network using a web browser directed to its IP address you set this address on the Device Communication Setup page the default is 192 168 1 100 This will access the home page of the unit similar to the first screen shown on the following page You can click the Communication Parameters link of the Home Page to access the Ethernet C
73. subdivide the host portion of the IP address into two or more subnets The subnet mask will flag the bits of the IP address that belong to the network address and the remaining bits that correspond to the host portion of the address The unique subnet to which an IP address refers to is recovered by performing a bitwise AND operation between the IP address and the mask itself with the result being the sub network address Acromag Inc Tel 248 295 0880 19 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus Device Communication Setup Gateway Address refers to the IP Address of the gateway this module is to cross if your local area network happens to be isolated or segmented by a gateway Typically it is assigned the first host address in the subnet address space Ifa gateway is not present then this field should contain an unused address within the host subnet address range NOTE In order to network your PC with an Acromag module you may have to consult with your network administrator and either temporarily change your TCP IP configuration see TCP IP Properties of Network Configuration in Windows or create a separate private network using a second network adapter installed in your PC recommended The necessary steps will vary with your operating system Refer to Acromag Application Note 8500 734 to help accomplish this located on the CDROM shipped with your module or via download from our web si
74. te at www acromag com The DNS 1 Address refers to the IP address of the first Domain Name Server used on this network A DNS server relates symbolic address names to actual numeric IP addresses while the DHCP server is responsible for dynamically passing out IP addresses The DNS 2 Address refers to the IP address of the secondary Domain Name Server used on this network A DNS server relates symbolic address names to actual numeric IP addresses while the DHCP server is responsible for dynamically passing out IP addresses The Host Name is the name to be assigned to this host if its address happens to be assigned dynamically using DHCP The Addressing Method refers to how this network module will obtain its IP address when connected to its network Static addressing is exactly as the name implies static and represents a unique fixed IP Address that is generally assigned by your service provider or system administrator The Default static IP address assigned to this module is 192 168 1 100 refer to product side label but you can change this address to any address you prefer DHCP Dynamic Host Configuration Protocol refers to a protocol for assigning dynamic IP addresses to devices ona network With dynamic addressing a device can have a different IP address every time it connects to the network In some systems it can even change while it is still connected This module can support three different network protocols simply by changin
75. terial Self extinguishing polyamide UL94 V O rated color light gray General purpose NEMA Type 1 enclosure Circuit Board Military grade fire retardant epoxy glass per IPC 4101 98 with humi seal conformal coating DIN Rail Mounting Unit is normally mounted to 35x15mm T type DIN rails Refer to the DIN Rail Mounting amp Removal section for more details Shipping Weight 0 5 pounds 0 22 Kg packed Acromag Inc Tel 248 295 0880 45 http www acromag com BusWorks Model XT1121 000 Environmental 16 Channel Sourcing DIO w USB amp Modbus These limits represent the minimum requirements of the applicable standard but this product has typically been tested to comply with higher standards in some cases Operating Temperature 40 C to 70 C 40 F to 158 F This data applies to the unit mounted upright on a DIN rail allowing free air flow from the bottom vent through the unit and out the top vent necessary for operation above 60 C Storage Temperature 40 C to 85 C 40 F to 185 F Relative Humidity 5 to 95 non condensing Isolation Input Output channels Excitation and USB as a group network each port and power circuits are all isolated from each other for common mode voltages up to 250VAC or 354V DC off DC power ground on a continuous basis will withstand 1500VAC dielectric strength test for one minute without breakdown This complies with test requirements of ANSI ISA 82 01 1988 for voltage rati
76. they may be used to monitor voltage levels from the field Inputs include transient suppression and series connected 100KQ resistors plus diode over voltage clamps to the internal 3 3V supply rail Individual I O channels are pulled down to the I O return RTN terminal with 10KQ resistors External excitation the source to the load is required for output operation and is connected between the EXC and RTN terminals of TB6 terminal numbers 22 and 21 respectively Input Signal Voltage Range 0 to 32VDC Input Current 280uA typical at 32VDC This is computed as the maximum applied input voltage minus 4V 3 3V rail and diode clamp divided by the series 100KQ2 input resistance Input Signal Threshold TTL compatible w 100mV of hysteresis typical Low to High threshold is 1 7VDC typical High to Low threshold is 1 6VDC typical Logic limits are TTL with 0 8VDC Max LOW level and 2 0VDC Min HIGH level Input Resistance 10K typical inputs include 10KQ pull downs to return Input Hysteresis 100mVDC typical Input Response Time 10ms typical not including network time The actual input response time will vary with network traffic and interrupts Input Transient Voltage Suppressor Installed at every I O point the rated working voltage is 38V breakdown voltage is 47V and clamping level is 72V 41 http www acromag com BusWorks Model XT1121 000 Digital Outputs This model has tandem input and output channels To control
77. to 4 output channels of another unit in the same order at the Holding Register address specified You can configure each group separately Target IP Address 1 amp Target IP Address 2 This is the IP Address of one or two target output devices another XT1121 000 or XT1111 000 module on the network Each digital input group can only be mapped to an output group at one or two target IP addresses Holding Register Address 1 amp 2 This is the Memory Map address of the output channel group 4 channels of your i20 target to send this units input data to Update Time Field Specify a time from 5 65534 seconds between messages Specify 0 or 65535 to turn i20 messaging OFF cyclical If change of state is enabled and a time greater than or equal to 5 is specified your message will be sent both upon change of state and at the update time specified Change of State Checkbox Set ON to enable output updates on change of input state and OFF to update cyclically according to the update time Keep Target Sockets Open Checkbox Check this box to keep the communication socket of the target device open after sending i20 data Keeping the socket open is helpful to obtain a faster i20 throughput time as the open and close socket messages are not required for each i20 message allowing an i20 message to be sent immediately along an already open socket But you should not keep the socket open if you do not require frequent updates as it does limit the bandwidth
78. to Start Stop periodic polling of the DIO input channels Their states are indicated in the simulated lamp color and the contained 0 indication for OFF or 1 indication for ON assuming that the Invert Input Logic function is set to No or disabled HELP You can press F1 for Help on a selected or highlighted field or control Acromag Inc Tel 248 295 0880 22 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus i20 Mapping Page Click the i20 Mapping Page tab of the Configuration Software and the screen below will be displayed lhusworks XI Series CewkesCommumcation Setup UO Corfigflest Page Oo Mapping Page Target IP Address 1 9 0 0 Hoking Reguter Adii 40001 Target IP Adhess 2 0 0 hoino Regter Adbert 4001 ores Cvenge Ot State he Keep Target Sockets Open Note You can configure af the Oo darna acd chk the Sard Go Canfig button just once F dered This model includes a special remote messaging functionality called i20 for input to output communication This capability allows it to send its digital input information or its inverted digital input information over the network to digital outputs on an identical unit or another compatible unit like the XT1111 000 The i20 Mapping Page shown above is used to setup this feature by specifying the IP address of the target module output to send input channel data to either upon change of st
79. ts of another over a network connection Acromag Inc Tel 248 295 0880 4 http www acromag com BusWorks Model XT1121 000 Mechanical Dimensions Units may be mounted to 35mm T type DIN rail 35mm type EN50022 and side by side on 22 5mm 0 9 inch centers WARNING IEC Safety Standards may require that this device be mounted within an approved metal enclosure or sub system particularly for applications with exposure to voltages greater than or equal to 75VDC or 50VAC 16 Channel Sourcing DIO w USB amp Modbus 114 5 4 51 DIMENSIONS ARE IN MILLIMETERS INCHES DIN Rail Mounting amp Removal Acromag Inc Tel 248 295 0880 Refer to the following figure for attaching and removing a unit from the DIN rail A spring loaded DIN clip is located on the bottom side The opposite rounded edge at the bottom of the top side allows you to tilt the unit upward to lift it from the rail while prying the spring clip back with a screwdriver To attach the module to T type DIN rail angle the top of the unit towards the rail and place the top groove of the module over the upper lip of the DIN rail Firmly push the unit downward towards the rail until it snaps into place To remove it from the DIN rail first separate the input terminal blocks from the bottom side of the module to create a clearance to the DIN mounting area You can use a screwdriver to pry the pluggable terminals out of their sockets Next while hol
80. twork Parameters e Retrieve the connected modules current For a more detailed configuration procedure see the network configuration Configuration Step by Step section of the Technical Reference e Set the Network IP address required for on page 17 of this manual Ethernet communication on your network IMPORTANT Delay clicking Open immediately after power up Set the subnet mask gateway address and or until it has established its Ethernet connection wait 30 seconds domain name server addresses for your after power up to give it time to initialize otherwise data network transfer or timeout errors may result If this occurs turn power e Write parameters to the connected unit and off to the unit close the software then turn power back on and read back the network communication status reboot the software after unit has powered up Acromag Inc Tel 248 295 0880 15 http www acromag com BusWorks Model XT1121 000 16 Channel Sourcing DIO w USB amp Modbus Quick Overview I O Configure HELP You can press F1 for Help on a selected or highlighted field or control You can also click the button in the upper right hand corner of the screen and then click to point to a field or control to get a Help message pertaining to the item you pointed to e Retrieve the connected modules current channel configuration e Configure a watchdog timer for the output channel and a timeout state Setup auto refresh for the output
81. ult Class C subnet mask of 255 255 255 0 then the first three numbers represent this Class C network at address 128 1 1 0 the last number identifies a unique host node on this network node 100 at address 192 168 1 100 A Subnet Mask is used to determine which subnet an IP address belongs to The use of a subnet mask allows the network administrator to further divide the host part of this address into two or more subnets The subnet mask flags the network address portion of the IP address plus the bits of the host part that are used for identifying the sub network By convention the bits of the mask that correspond to the sub network address are all set to 1 s it would also work if the bits were set exactly as in the network address It s called a mask because it can be used to identify the unique subnet to which an IP address belongs to by performing a bitwise AND operation between the mask itself and the IP address with the result being the sub network address and the remaining bits the host or node address Acromag Inc Tel 248 295 0880 29 http www acromag com BusWorks Model XT1121 000 IP Addressing 16 Channel Sourcing DIO w USB amp Modbus For our Example if we wish to further divide this network into 14 subnets then the first 4 bits of the host address will be required to identify the sub network 0110 then we would use 11111111 11111111 11111111 11110000 as our subnet mask This would effectively su

8500950 XT1121-000 User`s Manual

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