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BusWorks 972/973EN User`s Manual

1. Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output 25 Addr Description CHO Output Range Data Type Format Bit 15 2 0 Not Used 972EN 00 0 0 20mA 01 1 4 20mA 10 2 0 1mA 11 3 Reserved 973EN 0 0 10V 1 0 5V 2 0 1V Bits 1 0 3 Reserved CH1 Output Range Same format as CHO See Register 40001 CH2 Output Range Same format as CHO See Register 40001 CH3 Output Range Same format as CHO See Register 40001 CH4 Output Range 972EN 4006 973EN 4006 Same format as CHO See Register 40007 CH5 Output Range 972EN 4006 973EN 4006 Output 0 Watchdog Time Same format as CHO See Register 40001 Can be set from 1 to 65534 seconds Set to 65535 FFFFH or 0 0000H to disable watchdog timer Output 1 Watchdog Time Can be set from 1 to 65534 seconds Set to 65535 FFFFH or 0 0000H to disable watchdog timer Output 2 Watchdog Time Can be set from 1 to 65534 seconds Set to 65535 FFFFH or 0 0000H to disable watchdog timer Output 3 Watchdog Time Can be set from 1 to 65534 seconds Set to 65535 FFFFH or 0 0000H to disable watchdog timer Output 4 Watchdog Time Can be set from 1 to 65534 seconds Set to 65535 FFFFH or 0 0000H to disable watchdog timer Output 5 Watchdog Time CHO Timeout
2. 11 12 13 14 15 16 21 22 23 24 25 26 LX ARAAAA ARAAAAA J X OSSOSSS VVVPVee TB1 TB2 ANALOG OUTPUTS ANALOG OUTPUTS MOUNTING AND DIMENSIONS Unit mounts to T type DIN rails 35mm type EN50022 Units may be mounted side by side on 1 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 CONTROLS amp INDICATORS Green Run LED is ON if power is on and will blink in wink ID mode Yellow ST LED blinks ON OFF if module is in default mode and blinks more rapidly following a watchdog timeout Green LINK LED is ON if auto negotiation has successfully established a connection Yellow ACT LED signals PHY network Activity busy ISOLATION BARRIERS Dashed Lines denote isolation barriers The output circuit network and power circuit are isolated from each other for safety and noise immunity Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com 4 BusWorks 972 973EN Module User s Manual CONNECTIONS DIN Rail Mounting amp Removal Network For 100Base TX systems use data grade Unshielded Twisted Pair UTP wiring that has a 100Q characte
3. Toggles Wink And ON OFF Shaded 4xxxx register entries are Read Only Restore Writing 44718 AEAEH will cause the Factory module to restore its factory calibration Calibration This can only be done after Save Factory Calibration has been done at the factory Writing 43981 ABCDH is reserved for factory use This should not be performed by anyone else or operation will be degraded This register always reads back 0 After a reset this register is set back to 0 write protection enabled and no wink This register is not maintained in flash CHO Cal Hi Raw DAC Count Value See Note 2 CHO Cal Lo Raw DAC Count Value See Note 2 CH1 Cal Hi Raw DAC Count Value See Note 2 CH1 Cal Lo Raw DAC Count Value See Note 2 CH2 Cal Hi Raw DAC Count Value See Note 2 CH2 Cal Lo Raw DAC Count Value See Note 2 CH3 Cal Hi Raw DAC Count Value See Note 2 CH3 Cal Lo Raw DAC Count Value See Note 2 Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com 2 8 BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output Register Map Ref Addr Description Data Type Format Holding Registers 4x References Read Write Model 972EN 4006 Model 972EN 4004 CH4 Cal Hi 972EN 4006 973EN 4006 Raw DAC Count Value See Note 2 Model 973EN 4006 Model 973EN 4004 CH4 Cal Lo 972EN 4006 973EN 4006 Raw DAC
4. Value Can be set from 1 to 65534 seconds Set to 65535 FFFFH or 0 0000H to disable watchdog timer Percent See Note 1 This is the level that the output will be programmed to upon watchdog timeout Write 32767 7FFFH to leave this output unchanged following a timeout CH1 Timeout Value Percent Same format as CHO See Register 40013 CH2 Timeout Value Percent Same format as CHO See Register 40013 Register Map Model 972EN 4006 Model 972EN 4004 Model 973EN 4006 Model 973EN 4004 Note 972EN The 0 20mA output range may not precisely go to the OmA endpoint but will typically approach OmA within 0 25 of span 50uA Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com 2 6 BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output Register Map Model 972EN 4006 Model 972EN 4004 Model 973EN 4006 Model 973EN 4004 Shaded 4xxxx register entries are Read Only Note that clearing a watchdog timeout does not return an output to its pre timeout level it remains at its timeout level until otherwise written Ref Addr Description CH3 Timeout Value Data Type Format Holding Registers 4x References Read Write Percent Same format as CHO See Register 40013 CH4 Timeout Value 972EN 4006 973EN 4006 Percent Same format as CHO See Register 40013 CH5 Timeout Value 972EN
5. 3 8 for the other output channels to be calibrated Method 2 Calibration Via The Modbus TCP IP Interface 1 Write to the appropriate Output Range Register to select the output base range for each channel to be calibrated Select 4 20mA for 972EN models or 0 10V for 973EN models Write 24106 5E2AH into the Calibration Access Register to remove write protection from the calibration registers Write the zero calibration value to the output to be calibrated and adjust this value as necessary to precisely reproduce the Cal LOW zero signal see table of prior page Allow the output to settle a few seconds Write a 16 bit value to the Zero Calibration Register with a set bit in the bit position that corresponds to the channel number to be calibrated one channel at a time If you were calibrating the zero of channel 5 you would write 0x0010 to the Zero Calibration Register The module will replace calibration coefficients immediately no reset needed Write the full scale calibration signal value to the output to be calibrated and allow the output to settle about 10 seconds Write a 16 bit value to the Span Calibration Register with a set bit in the bit position that corresponds to the channel number of the channel to be calibrated one channel at a time For example if you wanted to calibrate the span of channel 0 write 0x0001 to the Span Cal Register Note that the calibration of the output sub ranges are automatically
6. 32767 decimal 2 For calibration via the Modbus TCP IP interface the Write values noted above are the ideal values written to the output word of the channel and may only approximate the actual value required to produce the actual calibration endpoint signals During calibration you will need to adjust these values to precisely reproduce the endpoint signals For calibration via the web browser Write values noted above are actual values written to the output word of the channel during calibration Uncalibrated they approximate the required endpoint signal Your measured value is then used to adjust the count values as required to precisely reproduce the endpoint signals 3 Calibration of the current 0 20mA 0 1mA and voltage 0 5V 0 1V subranges are internally interpolated from the resultant calibration of the base range noted in the table above for each model Additionally since resolution is degraded for the sub ranges it is very important that high accuracy be ensured for the primary base calibration when making output adjustments and measurements as subranges are linearly interpolated from these results The Series 972 973EN output modules are calibrated using a single base output range with fixed calibration endpoints The calibration of the module s sub ranges are automatically interpolated based on these results Prior to calibration the 972EN models must have the 4 20mA output range selected and the 973EN mu
7. 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com 8 BusWorks 972 973EN Module User s Manual WEB BROWSER Password Configuration Page Use up to 20 alphanumeric characters case sensitive to specify your username and 10 alphanumeric characters case sensitive to specify a password You will have to type in these entries twice to help prevent errors yes know this is annoying Click the submit button to write your changes to the module Network Configuration Modbus TCP IP Analog I V Output Password Configuration Page Microsoft Internet Explorer DE File Edt Yiew Favorites Tools Help Eod Q sa x A Osan Sferavortes Ami 2 R Lb Address http 128 1 1 100 password shtml z F E vE Links 973EN 4006 Password Configuration Page New Username and Password name password Verify Username and Password name password az submit Test Page Network Configuration Page i Calibration Page Mi Home Page pyright rights reserv Done Internet After completing your username password changes click on the appropriate button at the bottom of the page to select another web page If you made changes you may be prompted to re enter your new username and password before being permitted to move to other pages After setting your username and password you can click the Network Configuration Page button to set the network configuration pa
8. 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output 5 Refer to the Accessory Cables section at the back of this manual for more CONNECTIONS information on accessory cables including patch and crossover cables available from Acromag and other vendors Network HOST PC CONNECTED DIRECTLY TO A MODULE a Note This MDI to MDI connection requires the use of a crossover cable PLN or CAT 5 UTP CABLE OO ine PEAME a UP TO 100 METERS DET RST _ 5 Z Use Crossover Cable Eraser I Order Acromag Cable Model 5035 360 i I TIP You can significantly enhance the EMI RFI performance of your network connections by using Category 5E STP cable Shielded Twisted Pair with shielded RJ45 plug connectors This will also help to protect your installation from damage due to ESD Electro Static Discharge The use of shielded cable is strongly recommended for installations in harsh industrial environments and or in the presence of strong electrical fields You can use an Ethernet switch or switching hub to build a network of Ethernet modules similar to that shown below This drawing shows how to network connect Acromag Series 9xxEN modules to a 5 port Ethernet s
9. AND THE 9XXEN MODULE ETHERNET PORTS ARE WIRED MDI Ko BS i cables g Straight Through or Crossover Cable ETHERNET SWITCHES AND HUBS ARE WIRED MDI X THE ACROMAG ETHERNET SWITCH IS AUTOMATIC MDI MDI X AND Order Acromag Cable Model 5035 355 a ELIMINATES THE NEED FOR MAKING A DISTINCTION BETWEEN THE USE OF STRAIGHT THROUGH MDI AND CROSSOVER MDI X CAT 5 UTP CABLE CABLE CONNECTIONS UP TO 100 METERS Acromag offers a straight through patch cable Model 5035 355 or a Straight Through op Crossover Cable crossover cable Model 5035 360 for use with Series 9xxEN modules J CAT 5 UTP CABLE boos UP TO 100 METERS mt Straight Through or Crossover Cable CAT 5 UTP CABLE UP TO 100 METERS Straight Through or Crossover Cable Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com 6 BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output CONNECTIONS Power 972EN 4006 T5VDC 312mA T8VDC 255mA 24VDC 189mA 36VDC 128mA 973EN 4006 15VDC 140mA 18VDC 11 mA 24VDC 89mA 36VDC 65mA Analog Outputs Output is DC Current 972EN or DC Voltage 973EN Outputs are not isolated channel to channel and share a common return RTN Current outputs may drive up to 21MA into 500Q 972EN Voltage outputs may deliver up
10. Count Value See Note 2 Shaded 4xxxx register entries are Read Only CH5 Cal Hi 972EN 4006 973EN 4006 Raw DAC Count Value See Note 2 CH5 Cal Lo 972EN 4006 973EN 4006 Reserved Span Cal Register Raw DAC Count Value See Note 2 Do Not Use A 16 Bit value whose bit position when set indicates the channel to be calibrated for span For example to calibrate span of channel 0 write 0001H to this register To calibrate span of channel 11 write 0800H to this register IMPORTANT You must FIRST write 5E2AH into the Calibration Access Register Register 40031 before attempting calibration Note Register Map Zero Cal Register This block Mirrors 3xxxx Registers A 16 Bit value whose bit position when set indicates the channel to be calibrated for zero For example to calibrate zero of channel 0 write 0001H to this register To calibrate zero of channel 11 write 0800H to this register IMPORTANT You must FIRST write 5E2AH into the Calibration Access Register Register 40031 before attempting calibration Refer to Register Mirroring 3xxxx Input Registers are mapped to the 43xxx Holding Register space using an address offset of 43000 1 Output values are indicated in percent of span units represented by a 16 bit signed integer value with resolution of 0 005 Isb The range is 163 84 32768 decimal to 163 835 32767 decimal For example 100 0 amp 100 are rep
11. Output Current 0 10mA DC maximum Output Impedance 10 Output Short Circuit Protection Included Response Time 110us rise time typical 150us fall time typical unloaded for output to reach 98 of the final value in response to a step command Actual response time will vary with load Output Resolution 1 part in 4046 based on 11 368V full scale or 2 81mV bit 11 368V 4046bits DAC Count Voltage The internal DAC count can be calculated by multiplying 355 96 by the sum of the output voltage and 0 1393 The resultant value rounded can be used to calculate the effective resolution and to approximate the required output register program value see below The effective resolution is 1 part in the DAC Span Internal DAC Count Versus Volta DAC 0 DAC 100 406 e Output Range 1829 3609 Register Program Value Output values use integers with 20000 representing 100 The required output register program value can be approximated using the DAC values shown above via the following formula Register Value 20000 DAC Count DAC 0 DAC Span Ideal Voltage Output Register Program Value Output Voltage 2 5V 5V 10000 20000 5000 10000 Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output 3 1 Accuracy Outputs are accurate to better than 0 1 of output span Gene
12. noted above except for the Reset Slave and Report Slave ID functions Ref Addr Description Data Type Format Input Registers 3x References Read Only Module Status CH 0 Range Bit 15 0 Not Used Bit 14 Wink Mode Flag 1 Wink Mode Blinks Run LED for ID 0 Normal Operation See Wink Module Register Bit 13 Default Mode Flag 1 Default Mode Indicator 1 Watchdog Timeout Channel 5 0 Timeout Cleared 1 Watchdog Timeout Channel 4 0 Timeout Cleared 1 Watchdog Timeout Channel 3 0 Timeout Cleared 1 Watchdog Timeout Channel 2 0 Timeout Cleared 1 Watchdog Timeout Channel 1 0 Timeout Cleared 1 Watchdog Timeout Channel 0 0 Timeout Cleared 0 Not Used 972EN 973EN 0 0 20mA 0 0 10V 1 4 20mA 1 0 5V 2 0 1mA 2 0 1V 3 Reserved 3 Reserved CH 1 Range Format is same as for CHO above CH 2 Range Format is same as for CHO above CH 3 Range Format is same as for CHO above CH 4 Range 972EN 4006 973EN 4006 Format is same as for CHO above CH 5 Range 972EN 4006 973EN 4006 CHOO Count Format is same as for CHO above Corrected DAC Count See Note 2 CHO1 Count Corrected DAC Count See Note 2 CHO02 Count Corrected DAC Count See Note 2 CHO03 Count Corrected DAC Count See Note 2 CH04 Count 972EN 4006 973EN 4006 Corrected DAC Count See Note 2 CHO05 Count 972EN 4006 973EN 4006 Corrected DAC Count See Note 2
13. to 10V into 1KQ or 10mA 973EN Earth Ground Warning To comply with safety and performance standards use shielded cable and connect earth ground as noted Failure to use good wiring and grounding practices may be unsafe and hurt performance v Connect 15 36V DC to the power terminals labeled DC amp DC Observe proper polarity For supply connections use No 14 AWG wires rated for at least 75 C CAUTION Do not exceed 36VDC peak 4 wW wo 15 TO 36VDC INPUT POWER IS ISOLATED DDD EARTH GROUND CAUTION Risk of Electric Shock More than one disconnect switch may be required to de energize equipment before servicing IMPORTANT External Fuse If unit is powered from a supply capable of delivering more than 1A to the unit it is recommended that this current be limited via a high surge tolerant fuse rated for a maximum current of 1A or less for example see Bel Fuse MJS1 v Connect analog outputs at the output terminals as shown below according to your model CURRENT OUTPUT CONNECTIONS 972EN SHIELDED CABLE Tei CHANNEL 1 OF 6 lt S E ro Jo S P S RTN R CURRENT R S Dle 8 OUT LOAD S eN S UP TO 5500 MS 4 S DIE 8 S plleliz 3 EARTH GROUND S DILL Rm 5 T
14. 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 I O values are accessed via the 16 bit Input or Holding Registers given in the Register Map Input registers contain read only information 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 operating at an input or an output value for an output channel 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 You may reconfigure this module by issuing the appropriate Modbus functions to Register Map registers as required by your application You may also use a standard web browser to access the built in web pages of the module to perform basic operations Dynamic Host Configuration Protocol DHCP Domain Name System DNS MODBUS REGISTERS The x following the leading character represents a four digit address location in user data memory The leading character is generally implied by the function code and omitted from the address specifier for a given function The leading character also iden
15. with the result being the sub network address and the remaining bits the host or node address 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 subnetwork 0110 then we would use 11111111 11111111 11111111 11110000 as our subnet mask This would effectively subdivide our Class C network into 14 subnetworks 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 128 1 1 100 10000000 00000001 00000001 01 100100 Subnet Address 128 1 1 0 1000000 00000001 00000001 00000000 Subnetwork address 128 1 1 0 has 254 possible unique node addresses We are using node 100 of 254 possible for our module Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output 2 1 DHCP refers to Dynamic Host Configuration Protocol and is a method used to dynamically assign temporary numeric IP addresses as required A DHCP server maintains a pool of shared IP addresses which are 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 a
16. www acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output 1 Q TCP IP is the foundation for the World Wide Web and refers to the Transmission Control Protocol and Internet Protocol TCP IP allows blocks ABOUT MODBUS of binary data to be exchanged between computers The primary function of TCP IP 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 is an application protocol It defines rules for organizing and You can find more information interpreting data and is essentially a messaging structure that is independent on Modbus TCP IP by visiting of the underlying physical layer Itis freely available and accessible to our web site and down loading anyone easy to understand and widely supported by many manufacturers whitepaper 8500 765 Introduction To Modbus Modbus TCP IP uses TCP IP and Ethernet to carry the data of the Modbus TCP IP 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 TC
17. 20000 respectively Full range is 163 84 32768 to 163 835 32767 Dimensions 1 05 inches wide 4 68 inches tall 4 35 inches deep Refer to Enclosure amp Physical the dimensions drawing at the front of this manual DIN Rail Mount Type EN50022 T rail 85mm I O Connectors Removable plug in type terminal blocks rated for 15A 300V AWG 12 24 stranded or solid copper wire Network Connector 8 pin RJ 45 connector socket with metal shield shield is bypassed to earth ground at the GND terminal via an isolation capacitor and TVS Connections are wired MDI as opposed to MDI X You must use a CAT 5 crossover cable to connect this module to a PC Otherwise you may use an auto crossing Ethernet switch such as the Acromag 900EN S005 to make connections Signal MDI Description Tx Transmit Positive Tx Transmit Negative Rx Receive Positive Not Used Connects to Pin 5 Not Used Connects to Pin 4 Rx Receive Negative Not Used Connects to Pin 8 Not Used Connects to Pin 7 Case Material Self extinguishing NYLON type 6 6 polyamide thermoplastic UL94 V 2 color beige general purpose NEMA Type 1 enclosure Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 3 2 BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output Enclosure amp Physical Agency Approvals Environmental CAUTION Do not exceed 36VDC peak to avoid da
18. 32 33 34 35 ACROMAG 9300 127 972EN 4006 serial number amp rev six byteMA CID For detailed information on Modbus feel free to download our technical reference 8500 648 Introduction To Modbus and 8500 765 Introduction To Modbus TCP IP at www acromag com For your convenience 9xxEN Ethernet modules mirror the contents and operation of registers Oxxxx 1Xxxx amp 3xxxx as applicable into holding register space for systems and controllers that cannot directly access registers Oxxxx 1XXXX amp 3XXxx All Modbus registers of this model can now be written to or read from using either the standard methods described in the Modbus specification or through mapping mirroring to the Holding Registers The registers are mapped as follows and specifics follow the mapping Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output 2 3 0xxxx Coil Registers are mapped to 42xxx Holding Registers Register Mirroring 1xxxx Input Status Registers are mapped to 41xxx Holding Registers 3xxxx Input Registers are mapped to 43xxx Holding Registers For 3xxxx Input Registers the format of the registers are identical and you only need to offset your address by 43000 For example if you want to read Input Register 1 through the Holding Registers you would use the Read Holding Registers fu
19. 3EN Outputs share a common return and are not isolated channel to channel Output configuration and calibration parameters are stored in non volatile memory integrated within the microcontroller A dedicated Ethernet controller handles Ethernet communication The I O terminals and the Ethernet port terminals also include transient suppression A wide input switching regulator isolated flyback provides isolated power to the output circuit and the Ethernet controller A second switcher converts the 15V output supply to a 5V logic supply Refer to the simplified schematic shown below to help gain a better understanding of the circuit 12 bit Y pac 3 3V 3 3V 3 3V 3 3V ISOLATED ETHERNET i gt Ethernet Port Includes ESD Protection 1 2 3 RJ45 gt _ ETHERNET Z MICRO CONTROLLER CONTROLLER ___ 3 3V SRAM W 512Kx8 3 3V x gt FLASH eee GND 512Kx8 EARTH GROUND TOGGLE SWITCH lt ISOLATED INPUT POWER 15 36VDC vY 1 O LOGIC 3 3V POWER v ISOLATED 1 of pc O e FLYBACK m T OUTPUT LOGIC 3 SWITCHER DC e 15V oy POWER V SWITCHER v V 5 0 7 mg YJ lt Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http
20. 4006 973EN 4006 CHO Output Value Percent Same format as CHO See Register 40013 Percent See Note 1 This is the programmed output value CH1 Output Value Percent Same format as CHO See Register 40019 CH2 Output Value Percent Same format as CHO See Register 40019 CH3 Output Value Percent Same format as CHO See Register 40019 CH4 Output Value 972EN 4006 973EN 4006 Percent Same format as CHO See Register 40019 CH5 Output Value 972EN 4006 973EN 4006 Reserved Percent Same format as CHO See Register 40019 Do Not Use Reserved Do Not Use Reserved Do Not Use Reserved Do Not Use Reserved Do Not Use Reserved Do Not Use Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output T Ref Addr Description Data Type Format Register Map Holding Registers 4x References Read Write Calibration Writing 24106 5E2AH here Model 972EN 4006 Access immediately removes write protection from the calibration registers that follow Model 972EN 4004 Write 0 to apply write protection to the Model 973EN 4006 And calibration registers Model 973EN 4004 Wink Mode Writing 21845 5555H to this register Toggle will cause the module to Wink its Run LED Writing this value a second time will stop Wink
21. Acromag BusWorks 900EN Series Modbus TCP IP 10 100M Industrial Ethernet I O Modules Model 972EN 4004 Four Channel Current Output Model 972EN 4006 Six Channel Current Output Model 973EN 4004 Four Channel Voltage Output Model 973EN 4006 Six Channel Voltage Output USER S MANUAL p Acromag RUN s a r AEG 9o Zo Naw TARGET DEVICE ACROMAG INCORPORATED Tel 248 624 1541 30765 South Wixom Road Fax 248 624 9234 P O BOX 437 Wixom MI 48393 7037 U S A Copyright 2003 Acromag Inc Printed in the USA Data and specifications are subject to change without notice 8500 722 D05C015 2 BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output TABLE OF CONTENTS Symbols on equipment A Means Refer to User s Manual this manual for additional information 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 may be copied or reproduced in any form without the prior written consent of Acromag Inc For additional information please visit our web site at ww
22. B1 L VOLTAGE OUTPUT CONNECTIONS 973EN SHIELDED CABLE J x CHANNEL 1 OF 6 Oil Dle vo fe S S rr R VOLTAGE R I pDilelve la OUT LOAD i z UPTO10m 4 _ S E ELEN Io S DIi 2lv2 EARTH GROUND Qi DIS Lam a1 J v Connect Earth Ground as shown in the connection drawings above Additionally connect the GND terminal TB3 33 to earth ground The ground connections noted are recommended for best results If sensors are already grounded use caution and avoid making additional ground connections which could create ground loops The plastic module housing does not require earth ground Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output T This module supports Modbus over TCP IP You may use your own software to issue Modbus command to this module see Modbus Registers WEB BROWSER or you may use a standard web browser as these modules have built in web pages that allow you to setup control and calibrate the module Simply Home Page execute your web browser type the IP address assigned to your module in the Address window http 128 1 1 100 for our example click Go and you will be presented with a Home Page window similar to that shown below Q x a CD
23. Druh ferme Ama O 2 2 m AE Ftto H120 1 1 100 baa gt Kad 973EN 4006 Home Page Ka iiernet The Home Page provides buttons to access the other web pages of this module that are used to configure the network parameters change the user name and password calibrate the module and operate test the module For each new browser session that accesses the Home Page of this module you will be presented with a window prompting you to enter the current User Name and Password as shown below This information is required before the program will allow you to make any other selections The default user name and password is User and password00 respectively After entering these defaults you may wish to invoke the Password Configuration Page to change these parameters to something more meaningful to you Note that these entries are case sensitive IMPORTANT If you forget your Enter Network Password 21x i installed user name amp password S gt Please type your user name and password you can always toggle the Site 128 1 1 100 module into default mode via the Realm 964EN 4012 default mode toggle switch at _ the front of the module Then O the password and username will a revert to the original defaults I Save this password in your password list noted above allowing you to re _ret invoke the Password Configuration Page and change the username and password settings as required Acromag Inc Tel 248
24. Hz AM and standard but product has 900MHz keyed carrier per EN61000 4 3 and ENV50204 typically been tested to comply Electrical Fast Transient Immunity EFT 2KV to power and 1KV to with higher standards in some signal I O per EN61000 4 4 cases Conducted RF Immunity CRFl 10V rms 150KHz to 80MHz per EN61000 4 6 Surge Immunity 0 5KV per EN61000 4 5 IMPORTANT Power input and output I O wiring must be in accordance with Class l Division 2 wiring methods of Article 501 4 b of the National Electrical Code NFPA 70 for installations in the US or as specified in section 18 1J2 of the Canadian Electrical Code for installations within Canada and in accordance with the authority having jurisdiction This equipment is suitable for use in Class I Division 2 Groups A B C and D or non hazardous locations only WARNING EXPLOSION HAZARD Substitution of components may impair suitability for Class Division 2 WARNING EXPLOSION HAZARD Do not disconnect equipment unless power has been switched off or the area is known to be non hazardous Connector Shielded RJ 45 socket 8 pin 10BaseT 100BaseTX Ethernet Interface Wiring Wired MDI Unit does NOT support auto crossover Protocol Modbus TCP IP w Web Browser Configuration IP Address Default static IP address is 128 1 1 100 Port Up to 10 sockets supported Uses port 502 reserved for Modbus Transient Protection Transient Voltage Suppressors TVS are applie
25. Indicators c ceceseeeeeeeeeeeeeeeees 34 ACCESSORY CABLEG 2 eceeceeeeeeeeeeeeeeeeeneees 34 Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output 3 T83 BIDADA Ly fl p 7 uuu Ubu w Acromag U RUN 36 35 34 33 32 31 a OOst p sls 8 S fe as ome PWR YE D Model 972EN 4006 p lo oa Models 972EN 4004 973EN 4006 a N lo and 973EN 4004 are similar oO ie ACT P oor C Modet lode a 972EN 4006 Only K ANALOG OUTPUTS ANALOG OUTPUTS z z z z z z as Sat SS EE ERE gS ES ESE N O L Be 11 12 13 14 15 16 H 21 22 23 24 25 26 U U A AARARAARA AARAAAA H t Sisisisisis __ sisisisisis L TB1 TB2 e 1 05 T RAIL DIN MOUNTING 3 90 gt 26 7 DIN EN 50022 36mm 99 1 4 35 A NOTE Dimensions Are INCHES MILLIMETERS 110 5 MODEL 972 973EN ENCLOSURE DIMENSIONS TB3 DDDDDD RUN PWR LED GREEN a MODULE STATUS P LED YELLOW Sois isisi iv vfvfvfvfsiv Acromagy L Meal 36 35 34 33 32 31 8 O Ost slo l Ia a PWR ETHERNET ACTIVI
26. Output Calibration ccceseeeeeeeeeeeeeees 13 TROUBLESHOOTING 0 cccceceeseeeeeeeeeeeeeeeeeeeees 15 Diagnostics Table ccceeeeeeceeeeeeseeeeeeseees 15 Trouble Browsing Your Module ssseeee 16 Getting Out Of Trouble eeeeeeeeeees 16 TECHNICAL REFERENCE KEY FEATURES wsies ie ccccceicticdsieteinastietecaaneiveccassae 17 HOW IT WORKS wes nccicte ces ccecesseceeceesecdceeweseeveesies 18 ABOUT MODBUS TCPIIP 0 cccsceeeeeeeeeeeeeeneneees 19 IP Addressing 00 2 lt cccccssccegssnsnacecereceneecstedecaes 19 Dynamic Host Configuration Protocol 21 Domain Name System DNS ceceeeeeeeee 21 MODBUS REGISTERG 0c eeeeeeeeeeeeeeeeeeeeeeees 21 Register FUNCtiONS cececeeeeeeeeeeeeeeeeeeees 21 Register Mirroring 2 csceeeeeeeeeeeeeeeeeees 22 Data TYP Siiscsccccccccstevieeccendesesttenceccavanstcceess 23 Register Map ccccececeeeeeeeeeeeeeeeeeeneeeeeees 24 SPECIFICATIONS cccececeeeeeeeeeeeeeeeeeeeeeeeeeeee 29 Model NUMbeYS ececeeeeeeeeeeeeeeeeeeeeeeeeees 29 Analog Outputses 0iceccccccsetsiet eet ccseceeeesencetes 29 General Specifications ceeeeeeeeees 31 Enclosure and Physical ceseeeeeeseeeeeeees 31 Agency Approvals ccececeeeeceeeeeeeeeeeeeenenens 32 Environmental cccececeeeeeeeeeeseeeeeeeeeeeeeenes 32 Ethernet Interface cccsceceeeeeeeeeeeeeeeeeenes 33 Controls amp
27. P frame without 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 a Modbus Checksum Not Included Sed MODBUS FRAME Note that the Modbus address field is referred to as the Unit Identifier in Modbus TCP Ina typical slave application the Unit ID is ignored and just echoed back in the response The operation of the 972 973EN industrial Ethernet modules is similar to Acromag s 917 918MB Modbus modules The operation over Ethernet is essentially transparent to the Modbus register command structure If you are already familiar with Modbus or with Acromag Series 900MB modules then you are already familiar with the operation of the 972 973EN modules A host is any device on any network On TCP IP networks each host has IP Addressing one or more unique IP addresses This module connected to an ethernet network is a host 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 The IP address is comprised of two parts the network address first part and the host address last part The number of octets of the four total that belong to the netwo
28. TY Q Opor LED YELLOW AND N LINK LINK LED GREEN lt gt RESET DEF ADDRESS DFT RST TOGGLE SWITCH TOGGLE RIGHT TO RESET TOGGLE LEFT TO SET NI DEFAULT ADDRESS RJ45 ETHERNET CONNECTOR ETHERNET gt g REMOVABLE PLUG IN TYPE TERMINAL BLOCKS The toggle switch is used to toggle the module into or out of Default Mode toggle left or to reset the module toggle right In Default Communication Mode the yellow ST LED blinks slowly and the module assumes a fixed static IP address of 128 1 1 100 a default subnet mask of 255 255 255 0 a default username of User and a default password of password00 Model 972EN 4006 Models 972EN 4004 973EN 4006 and 973EN 4004 are similar Model 972EN 4006 Only oS ANALOG OUTPUTS ANALOG OUTPUTS o E 8 amp al ES ES E Ri 12 13 14 15 16 21 22 23 24 25 26 XN A AAAAA RARAAALZA NSIS CSSS TB1 TB2 EARTH DC GROUND y PWR TB3 BDDDDDD UUuUUUUY UuuUY 36 35 34 33 32 31 R Qha 972 973EN js 8 ISOLATION PWR DIAGRAM TRANSFORMER 3 5V 3V TRANSFORMER i TX IIE RX a al Sit u ANALOG OUTPUTS ANALOG OUTPUTS
29. bus couplers power supply or rack mount required to operate e Isolated Network Interface Immune to noise amp can operate over long distances Allows many modules to network together e Network Port is Transient Protected Shielded RJ45 port includes transient protection from ESD EFT and other transients e 10Base T and 100Base TX Support Integrated IEEE 802 3 802 3u 100Base TX 10Base T e Auto Negotiated 10 100Mbps Half or Full Duplex e Flexible Process Current Output 972EN Generates up to 6 process current signals in 3 ranges e Flexible DC Voltage Output 973EN Generates up to 6 DC voltage signals in 3 ranges e Selected Ranges May Vary Channel to Channel Multiple channels may have different ranges configured e Precise High Resolution D A Conversion Modules use high resolution 12 bit low noise digital to analog conversion for high accuracy and reliability e Nonvolatile Reprogrammable Memory Allows the functionality of this device to be reliably reprogrammed thousands of times e Fully Isolated Output channels as a group network and power are all isolated from each other for safety and increased noise immunity e Plug In Terminal Blocks amp DIN Rail Mount Make mounting removal and replacement easy e Operation Diagnostic LED Indicators Aide Troubleshooting Yellow ACT LED indicates port activity busy Green LNK LED indicates link auto negotiation complete and connectio
30. d differentially at the transmit and receive channels Additionally the metal shield is coupled to the earth ground terminal via an isolation capacitor and TVS 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 Web page for configuration and control is built in and may be accessed over ethernet via a standard web browser Rx Tx Memory 8K bytes internal SRAM memory for receive and transmit buffers FIFO 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 with CSMA CD half duplex Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com 34 BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output Ethernet Interface 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 module Controls amp Indicators ACCESSORY CABLES Port Status Indicators Green LED indicates link status ON if auto negotiation has successfully established a connection y
31. d use it as a N RARRARARAAAR lever to force the connector down Remove Terminal Blocks On This A Side To Provide Clearance PRY WITH SCREWDRIVER INSERTED IN SLOT HERE DO NOT TWIST TO AVOID DAMAGING PLASTIC TAB PUSH SCREWDRIVER AS SHOWN TO TILT AND LIFT MODULE OFF RAIL until the unit disengages from the rail do not twist the screwdriver to avoid damaging plastic RJ45 MDI AND MDI X CONNECTIONS MDI WIRING MDI X WIRING ETHERNET PORT Transmit Receive Transmit Receive Receive Transmit Not Used Not Used i 8 Not Used Not Used Receive Transmit CLIP Not Used Not Used Not Used Not Used RJ 45 CONNECTOR Note Crossover Connections RECOMMENDED CABLE 10Base T 100M CAT 3 CAT 4 or CAT 5 UTP 100Base T 100M CAT 5 5e UTP STP The Ethernet port of this module is wired MDI and does not include automatic crossover The Ethernet port of your PC is also wired MDI and may not include automatic crossover As such you must use a crossover cable like that shown below when connecting this device directly to a PC CROSSOVER CABLE FOR MDI TO MDI OR MDI X TO MDI X RJ45 Clip Side Down CROSSOVER CONNECTIONS RJ45 Clip Side Down 1 8 FOR DIRECT PC TO ETHERNET MODULE PINS 1TO3 CONNECTIONS 2TO6 3TO1 6TO2 Acromag Inc Tel 248 624 1541 Fax 248 624
32. e Configuration Control of this page to change the output range for each channel For the 973EN shown you may select 0 10V 0 5V or 0 1V For the 972EN you may select 0 20mA 4 20mA or 0 1mA You may also set your watchdog time and output timeout level Click on write range and watchdog settings to execute your changes Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com 1 2 BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output WEB BROWSER Calibration Page IMPORTANT This module has already been calibrated at the factory and recalibration is not normally required except as necessary to correct for long term component aging or to satisfy your company s maintenance requirements Do not attempt to recalibrate this module unless absolutely required as miscalibration will negatively affect the module s performance The Calibration Page will allow you to recalibrate each channel s output zero and span signal as required Simply select the channel to be calibrated Choose zero or span and set the output Measure the zero or full scale endpoint signal and enter this value in the space provided Then click calibrate Repeat this procedure for the other endpoint and other channels as required For best results always calibrate zero before span Calibration Page Microsoft Internet Explorer Fle Ed Yew Favorites Took Hel ap Qu aA serch Forte
33. ellow LED indicates activity ethernet connection is busy traffic is present Address The module IP address can be preset by the user and loaded from internal non volatile memory static or it can be automatically dynamically acquired at startup via a network server using a BOOTP Bootstrap Protocol or DHCP Dynamic Host Configuration Protocol The unit also includes a default mode toggle switch to cause the module to assume a known fixed static IP address of 128 1 1 100 for troubleshooting purposes LED Indicators RUN Green Constant ON if power is on Continuous flashing ON OFF indicates unit is in wink ID mode ST Yellow Blinks ON OFF in default communication mode and blinks more rapidly following a watchdog timeout LINK Green Indicates Ethernet link status ON if auto negotiation has successfully established a connection ACT Yellow Indicates Ethernet activity Ethernet connection is busy traffic is present Controls Reset Default Address Switch This momentary toggle switch is located on the front panel and is used to either reset the module toggle right or cause the module to assume a default IP address toggle left Static module address is initially set to 128 1 1 100 at the factory or may be preset by the user This switch can also be used to restore the module to its initial factory configuration by holding this switch in its default position while powering up the unit see Get
34. ented by decimal values 20000 0 and 20000 respectively The full range is 163 84 32768 decimal to 163 835 32767 decimal Temperature A 16 bit signed integer value with resolution of 0 1 C Isb For example a value of 12059 is equivalent to 1205 9 C a value of 187 equals 18 7 C The maximum possible temperature range is 3276 8 C to 3276 7 C Count Value A 16 bit signed integer in range of 32768 to 32767 or unsigned integer in range of 0 to 65535 representing an A D or DAC count time value or frequency Discrete A discrete value is generally indicated by a single bit of a 16 bit word The bit number position typically corresponds to the discrete channel number Unless otherwise defined for outputs a 1 bit means the corresponding output is closed or ON a 0 bit means the output is open or OFF For active low inputs a value of 1 means the input is ON Active low near OV while a value of 0 specifies the input is OFF or in its high state usually gt gt OV Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com 24 BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output Register Map Model 972EN 4006 Model 972EN 4004 Model 973EN 4006 Model 973EN 4004 The following table outlines the register map for the Model 972EN 400X and 973EN 400X network output modules The Modbus functions operate on these registers using the data types
35. eous bidirectional data transmission full duplex As such it is rated for frequencies up to 200MHz double the rate of Category 5 This cable is defined in TIA EIA 568A 5 Addendum 5 Acromag offers the following cable accessories for use with this module Patch Cable amp Cable Model 5095455 A yellow Stoollong single shielded Catagonyse 4 PPOSSOVER Cable STP patch cable with drain wire and an RJ45 plug at both ends Use this cable to connect an Acromag 9xxEN I O module to the Acromag 900EN S005 switch Cable Model 5035 360 A green 5 foot long single shielded Category 5e STP crossover cable with a drain wire and an RJ45 plug at both ends This cable performs the Ethernet crossover function and is used to connect a PC directly to an Acromag Series 9xxEN I O module Note that you do not need to use a crossover cable to connect your PC to this module if the Acromag 900EN S005 switch is used between the PC and module as the switch is auto crossing However you must use a crossover cable when directly connecting your PC to a Series 9xxEN I O Module without the use of an auto crossing switch or hub You may obtain cable in other lengths and colors as required for your application from other vendors For example shielded CAT 5e cable is available from the following vendors e L com Connectivity Products www L com com e Pro Link www prolink cables com Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag c
36. f shielding employed in Category 5 STP ACCESSORY cable single shielded and double shielded Both of these cables have the same core and jacket as UTP cables but also include a thin foil outer shield CABLES that covers all four twisted wire pairs Variations may include a drain wire that encircles the outer jacket A double shielded version adds an outer wire screen that surrounds the foil shield and also functions as a drain wire The drain wire or wire screen typically makes contact at each end of the cable with the metal shield around special RJ45 plug connectors This shield then makes contact with the metal shield of shielded RJ45 sockets The socket shield may make direct contact with earth ground or it may be capacitively coupled to earth ground In the Acromag 9xxEN modules it makes contact with earth ground via a high voltage capacitor and transient voltage suppressor In addition to separately isolating the shield this helps to minimize radio frequency and electromagnetic interference and has the added benefit of protection from ESD Electro Static Discharge Further Acromag recommends the use of enhanced Category 5 cable CAT 5e This cable has all the characteristics of Category 5 but includes enhancements that help to minimize crosstalk Category 5e cable has a greater number of turns per inch in its twisted pairs and its performance is also more suitable for applications that make use of all four wire pairs for simultan
37. g 9xxEN input modules with input to output mapping capability That is i20 equipped input modules may be configured to write their input levels to compatible output modules via the network connection Acromag 961EN 4006 962EN 4006 965EN 4006 and 966EN 4006 input modules may be configured to control the outputs of these models Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output 1 1 After completing your username amp password assignment plus your network configuration parameters you can use the Test Page to operate your module The Test Page will allow you to write the outputs change your output range and configure your watchdog parameters 4 lest Page Microsoft Internet Explorer Bie Edt Yew Farortes Tous Help a Q x A GD Druh ferwe Ama 2 S m E Meto 120 1 1 100test stem Go A a 973EN 4006 Test Page Channel Output Control Channel Output Settings Channel 0 Channel 1 Channel 2 0 000 VDC 0 000 VDC 0 000 VDC Channel 3 Channel 4 Channel 5 0000 ype 0 000 vpe 0000 IVDC Channel Range Settings Channel Range Channel Range Channel Range 0 10 VDC O0 10 VDC O0 10 VDC o O0 5SVDC 1 0 5SVDC 2 0 5VDC w 2 1 Rem remairing Downloading picture http 128 1 1 100homepage g g biternet Use the scroll bar on the right to scroll down the page as shown below F lest Page Microsoft Inte
38. g Internet Explorer Refer to the Tools pulldown menu select Internet options click the Connections tab then click the LAN Settings button Locate the Proxy server information and uncheck the box next to the statement Use a proxy server for your LAN Then click OK to return to the Connections screen and click OK again to save your settings You should now be able to use Internet Explorer to browse the module as required However to later restore your PC s connection to your company network you may have to re enable the use of a proxy server for your LAN There is no built in error detection to prevent you from writing invalid values to a configuration register As such if you inadvertently write an invalid value to an internal register you could cause the module to become inoperable under certain conditions If this happens in order to regain control of the module the module can either be re downloaded at the factory or you can try restoring the module to its initial configuration by following this procedure Procedure For Restoring any 9xxEN Module to its Initial Configuration 1 While module power is OFF press and hold the front panel toggle switch in the default DFT left position 2 While continuing to hold the toggle switch in the default position apply power to the module 3 After a few seconds the Status LED will begin to blink quickly and you can release the default switch at
39. gain later Static addresses will ensure a connection every time but dynamic addresses do not DNS refers to the Domain Name System or Domain Name Server and refers to the system used to associate an alphanumeric character string with a numeric IP address The DNS is actually a distributed database of domain names and corresponding IP addresses The DNS allows us to use Acromag com as an IP address rather than a complicated string of numbers Note that name servers contain information on some segment of the domain name space and make this information available to clients called resolvers Modbus registers are organized into reference types identified by the leading number of the reference address Read Write Discrete Outputs or Coils A 0x reference address is used to drive output data to a digital output channel 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 Note The ON OFF state of discrete inputs and outputs is represented 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
40. heck cable type hold both ends in same position and Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 1 6 BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output TROUBLE SHOOTING Diagnostics Table Trouble Browsing Your Module Getting Out Of Trouble In tb So your module s gone wild follow this procedure to restore it to its initial configuration and regain control SYMPTOM Many Communication Errors POSSIBLE CAUSE Is cable segment longer than 100M POSSIBLE FIX Maximum distance between two nodes is limited to 100 meters using approved cable Correct Cable Shielded CAT 5 5E cable or equivalent is recommended Missing earth ground connection Connect earth ground to TB3 33 GND terminal adjacent to power terminal Please refer Acromag Application Note 8500 734 for help in setting up network communication with your module located on the CDROM shipped with your module or via download from our web site at www acromag com This document gives details for changing your PC s TCP IP configuration in order to communicate with your module see TCP IP Properties of Network Configuration in Windows If you have carefully followed this procedure and you still cannot browse your module you may have the web browser of your laptop or PC setup to use a proxy server when browsing the web If you are usin
41. ication mode via the DFT toggle switch at the front of the module Default Mode uses a static IP address of 128 1 1 100 a default subnet mask of 255 255 255 0 a default username User anda default password passwordoo Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com 1 O BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output WEB BROWSER Network Configuration The Default Communication Mode uses a Static IP address of 128 1 1 100 a default subnet mask of 255 255 255 0 a default username of User and a default password of password00 I O Mapping Optional i20 Function Ao By default the module is setup to use Static IP Addressing and a Static IP Address of 128 1 1 100 You can optionally choose to have the IP address assigned dynamically via DHCP BOOTP or DHCP BOOTP w Fallback This will also require that you specify a valid Host Name Note that DHCP BOOTP w Fallback will revert to the static IP address if your DHCP or BOOTP server cannot be found at the address specified In general BOOTP Bootstrap Protocol refers to an internet protocol that enables a diskless workstation to discover its own IP address the address of a BOOTP server on the network and a file to be loaded into memory to boot the machine This enables the workstation or device server to boot without requiring a hard or flopp
42. interpolated based on the calibration of the base range just completed Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output 1 5 Method 2 Calibration Via The Modbus TCP IP Interface continued Output Calibration 7 Repeat steps 3 6 for the other output channels as required 8 When finished calibrating write 0x0000 to the Calibration Access Register to replace write protection for the calibration registers and help prevent miscalibration You may then check the calibration of the alternate range s for the output s Note that the alternate ranges are calibrated by interpolating their calibration endpoints from those of the base range If significant error is noted then you must perform the calibration procedure a second time making sure that you precisely adjust your output signal for zero and span as required Upon power up the green RUN LED should light A continuous blinking Run TROUBLE LED indicates wink ID mode If the Run LED remains OFF and correct power has been applied then either the internal power supply has failed or a SHOOTING fatal processor error firmware has occurred SYMPTOM POSSIBLE CAUSE POSSIBLE FIX Diagnostics Table Green RUN LED Internal 3 3V power Return module for repair does not light has failed Continuous flashing Module in wink Read Module Status register gree
43. ion Output channels as a group power and network circuits are 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 Complies with test requirements of ANSI ISA 82 01 1988 for voltage rating specified Installation Category Designed to operate in an installation in a Pollution Degree 2 environment with an installation category over voltage category Il rating Electromagnetic Interference Immunity EMI Unit has demonstrated less than 0 25 of output shift for interference from switching solenoids commutator motors and drill motors Emissions Per European Norm EN50081 1 Radiated Frequency Emissions 30 to 1000MHz per EN55022 Class A 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 Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output 3 3 Electromagnetic Compatibility EMC Environmental Minimum Immunity Per European Norm EN50082 1 Electrostatic Discharge ESD Immunity 4KV direct contact and 8KV These limits represent the air discharge to the enclosure port per EN61000 4 2 minimum requirements of the Radiated Field Immunity RFI 10V M 80 to 1000M
44. mage to the module External Fuse Select a high surge tolerant fuse rated for 1A or less to protect unit Output channels are not isolated channel to channel Printed Circuit Boards Military grade FR 4 epoxy glass Shipping Weight 1 pound 0 45 Kg packed Safety Approvals CE marked EMC Directive 89 336 EEC UL Listed UL3121 First Edition UL1604 cUL Listed Canada Standard C22 2 No 1010 1 92 Hazardous Locations Class 1 Division 2 Groups A B C D Operating Temperature 972EN 25 C to 60 C 13 F to 140 F 973EN 25 C to 70 C 13 F to 158 F Storage Temperature 40 C to 85 C 40 F to 185 F Relative Humidity 5 to 95 non condensing Power Requirements 15 36V DC SELV Safety Extra Low Voltage Observe proper polarity See table for current Data provided is with all current outputs 972EN set full scale 20mA and all voltage outputs 973EN set to 10V across 1KQ 10mA Power 972EN 4004 Current Supply Typical Maximum 972EN 4006 Current Typical Maximum 224mA 246mA 284mA 312mA 184mA 202mA 232mA 255mA 138mA 152mA 172mA 189MA 95mA 105mA 116mA 128mA Power 973EN 4004 Current 973EN 4006 Current Supply Typical Maximum Typical Maximum 175mA 193mMA 207mA 228mA 145mA 160mA 171mA 188mA 110mA 121mA 129mA 142mA 78mA 86MA 90MA 99MA CAUTION Risk of Electric Shock More than one disconnect switch may be required to de energize equipment before servicing Isolat
45. n RUN LED mode to verify wink status Write 5555H to Wink Mode Toggle Register to toggle wink mode off on Cannot Power ON at the Check power Is green If your problem still exists after communicate module RUN LED ON checking your wiring and Connecting cable is This module s ethernet port reviewing this information or if not a crossover is wired MDI You must use other evidence points to cable a crossover cable when another problem with the unit connecting this module to an effective and convenient your PC or another device fault diagnosis method is to also wired MDI If you are exchange the module with a read the wire colors connecting to an Ethernet known good unit Acromag s switch or hub then a direct Application Engineers can sas nial cable is used provide further technical A oe Ps Fa ar Note If your Link LED is assistance if required TOMISMO IgH ON you have connected Complete repair services are v ee chal ae p using the correct type of also available from Acromag e same order you cable but it could still be have a straight cable Jefective Wrong IP Address Change the IP address of module or PC so that both match Try default module address of 128 1 1 100 For the PC NIC try using another address Cannot Browse Your browser may be Temporarily disable the use Module setup to use a proxy of a proxy server by your server for LAN browser see procedure of communications TIP To c
46. n established Green RUN LED indicates power is ON or wink ID mode blinking Yellow ST LED indicates module status e Internal Watchdog A hardware watchdog timer is built into the microcontroller that causes it to initiate a self reset if the controller ever locks up or fails to return from an operation in a timely manner e Wide Range DC Power Wide range diode coupled for use with redundant supplies and or battery back up e Hardened For Harsh Environments For protection from RFI EMI ESD EFT amp surges Has low radiated emissions per CE requirements e Wide Ambient Operation Reliable over a wide temperature range Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com 1 8 BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output HOW IT WORKS OUTPUT CHANNEL 1 OF 6 Typical These transmitters will drive up to six analog current outputs 972EN or six analog voltage outputs 973EN and provide an isolated 10 100 Ethernet interface for configuration monitoring and control of the outputs The microcontroller completes the output transfer function according to the output type amp range per its embedded program and sends output values to two 12 bit quad output DAC s Digital to Analog Converters The corresponding DAC output voltages are sent to individual voltage to current converter circuits 972EN or to non inverting output amplifiers 97
47. nction with an address of 43001 For the 1xxxx Input Status Registers where supported the return data is reformatted to match the Holding Register format For example if you request the Input Status for 12 digital inputs instead of getting 2 bytes returned with the first 12 bits representing the 12 digital inputs you will get 12 separate words each set to either 0000H OFF or FFFFH ON For the 0xxxx Coil Registers where supported reads are handled in the same way as the 1xxxx Input Status Registers You can also write to the coil registers by using the Preset Single Register function with an address offset of 42000 Setting the data to OOOOH will turn the coil OFF while setting the data to FFOOH will turn the coil ON Writing to multiple coils is not supported via register mirroring you must use the Write Multiple Coils function for that Note that with respect to Acromag 9xxMB Modbus RTU modules only 3xxxx Input Registers are mirrored into 4xxxx space not Coil or Input Status registers as noted here for 9xxEN models I O values for Series 900EN modules are represented by the following Data Types simple data types for temperature percentage and discrete on off Summary Of Data Types Used By 900MB 900EN Modules Percentage A 16 bit signed integer value in range of 32768 to 32767 20000 is used to represent 100 yielding a This Model resolution of 0 005 Isb For example 100 0 and 100 are repres
48. 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 For our example the default IP address of this module is 128 1 1 100 If we assume that this is a Class C network address based on the default 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 128 1 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
49. om http Awww acromag com 36 BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output Patch Cable amp For very noisy environments or in the presence of strong electrical fields you Crossover Cable can obtain double shielded CAT 5e cable and shielded RJ45 plugs from the following vendors e L com Connectivity Products www L com com see cable model TFSC2004 and shielded plug T8P8CSR e Regal Electronics www regalusa com see shielded plug model 1003B 8P8CSR C5 Complete premium double shielded Category 5e standard and crossover cables in variable lengths can be obtained from Lumberg at www lumbergusa com refer to their etherMate line For example specify RJ45S RJ45S 656 B 3M for a double shielded 3 meter straight cable Specify RJ45S RJ45S 656 BX 3M for a double shielded 3 meter crossover cable Notes Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com
50. ral Specifications typical for 4 20mA 0 20mA 0 10V and 0 5V ranges see table below This includes the effects of repeatability terminal point conformity and linearization Ambient Temperature Effect Better than 0 005 of output span per C 50ppm C or 1 0uV C whichever is greater Digital to Analog Converter Burr Brown Texas Instruments DAC7615 12 bit Monotonic to 12 bits Integral Non Linearity 0 1 of span or 2 LSB typical whichever is larger for spans greater than or equal 16mA 972EN or 5V 973EN Analog Output Range Resolution amp Accuracy Output Range Effective Resolution Percent of Span Model 972EN 4004 or 972EN 4006 0 to 20mA DC 028 1 3614 0 1 span 0 02mA 4 to 20mA DC 035 1 2891 0 1 span 0 02mA 0 to 1mA DC 552 1 181 1 6 span 0 016mA Model 973EN 4004 or 973EN 4006 0 10V DC 028 1 3559 0 1 span 10mV 0 5V DC 056 1 1779 0 1 span 5mV 0 1V DC 281 1 356 0 8 span 8mV Note 0 1mA amp 0 1V ranges only Due to the possible inability of the output to precisely adjust to the ideal range endpoints as a result of the low resolution for the 0 1mA amp 0 1V ranges effective inaccuracy may be as high as 2 2 amp 1 1 respectively for these sub ranges Data Type Percent A 16 bit signed integer value with resolution of 0 005 Isb 20000 is used to represent 100 For example 100 0 amp 100 are represented by decimal values 20000 0 amp
51. rameters for the module You may have to consult your network administrator for help to complete the contents of this page Network Configuration Page Microsoft Internet Explorer BE 7 E File Edt View Favorites Tools Help Q s e A E O search Favorites meda 7S Address http 128 1 1 100 canfigure shtml y Eco inks a 973EN 4006 Network Configuration Page Static IP Address 12841 1 100 Number of Sockets 10 Subnet Mask 255 255 255 0 Gateway a 0 0 0 Host Name 972en Active IP Address 128 1 1 100 MAC Address 00 90 C2 C L4C BC Use Static IP Addressing OUse DHCP BOOTP OUse DHCP BOOTP WiFallbacks Wink On Off nn i Test Page Password Configuration Page Calibration Page ph Home Page Done Internet Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output Q 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 00H FFH It is expressed here in decimal form with a period placed between octets A Static IP Address is 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
52. required Bring up the browser interface and select the Calibration Page Select an output channel then select Zero Click the Set Output button and an ideal zero count will be written to the DAC The output will go to approximately zero At this point you will lose control of the output and must complete the procedure or simply click restart calibration to start over If you picked the wrong output channel or the wrong endpoint click restart calibration to start over With a meter connected to measure the output signal measure the actual output level and enter this value into the edit box labeled DVM Reading Then click the Calibrate button to complete calibration of the zero endpoint Next select Span for best results always calibrate zero before span Click the Set Output button and an ideal full scale count 20000 will be written to the DAC The output will go to approximately full scale At this point you will again lose control of the output and must complete the procedure or simply click restart calibration to start over If you picked the wrong output channel or wrong endpoint click restart calibration to start over With a meter connected to measure the output signal measure the actual output and enter this value into the edit box labeled DVM Reading Then click the Calibrate button to complete calibration of the full scale endpoint Repeat steps
53. resented by the decimal values 20000 0 and 20000 respectively 2 The Corrected DAC Count refers to the actual count required to set the DAC output after making adjustments for calibration The Raw DAC count is the count value required to set the endpoints of the nominal range Refer to DAC Count in Specifications for more information Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output Q These DIN rail mount industrial Ethernet output modules will drive up to six process current or voltage signals according to the model and provide an isolated 10 100BaseT Ethernet port for monitoring and control of the outputs Units are DC powered and include reverse polarity protection Outputs share a common return connection and are not isolated channel to channel Outputs as a group network and power are isolated from each other Non volatile reprogrammable memory in the module stores configuration and calibration information The BusWorks model prefix 900 denotes the Series 900 network I O family The EN suffix denotes EtherNet Select 972EN for current output and 973EN for voltage output Select 4 or 6 channel output models The four digit suffix of this model number represents the following options respectively 4 Ethernet 0 Default 04 or 06 4 or 6 Channels respecti
54. ristic impedance and meets the EIA TIA Category Five wire specifications It is recommended that you use a crossover CAT 5 cable to connect this device to your PC For 10Base T systems you may use Category 3 Category 4 or Category 5 UTP cable In either case you are limited to 100 meters between any two devices A crossover cable simply connects the differential transmit pair on each end to the receive pair on the opposite end Use a standard direct cable when connecting to a hub or switch port which are generally wired MDI X Modbus TCP IP Analog I V Output PUSH MODULE REMOVAL USE YOUR FINGER TO APPLY FROM DIN RAIL DOWNWARD PRESSURE HERE AS YOU LIFT AND TILT MODULE TO REMOVE IT FROM RAIL DAADA DABO When attaching the module to the T type DIN rail angle the top of the unit towards the rail and locate the top groove of the adapter over the upper lip of the rail Firmly push the unit towards the rail until it snaps into A rai place To remove first separate the PWR input terminal block s from the bottom side of the module to create a clearance to the DIN mounting area Next while holding the module in SDCDYPE Any Series 9XXEN Ethernet Module DIN RAIL place from above insert a y screwdriver into the lower arm of the a e ra DIN rail connector an
55. rk address depend on the Class definition see below Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com 2 0 BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output IP Addressing Note that the first node address 0 and node 10 are typically reserved for servers and should not be used The last node 255 is a broadcast address Node 100 is the default address of this module Use of these node addresses for any other purpose may yield poor performance A Static IP Address is as the name implies static That is it is a unique IP Address that is assigned by a service 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 A Subnet is a contiguous string of IP addresses The first IP address in a subnet is used to identify the subnet and usually addresses the server for the subnet The last IP address in a subnet is always used as a broadcast address and anything sent to the last IP address of a subnet is sent to every host on that 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 2 2 A Class B subnet shares the first two octets
56. rnet Explorer Ge Edt yew Farortes Jods Hel ae Qu x Z Jo search ser mores Ama C d D r m E Peto f 129 1 1 100ftest Armi v Go Ld a Channel Watchdog Settings Note Set State to 1 0 for Do Nothing Option Note Set Time to 0 or 65535 to Disable Channel Number Time Seconds State Valts 0 65535 0 000 1 65535 0 000 2 65535 noon 3 65535 0 000 4 65535 0 000 5 65535 noon wie range and watchdog setings doe iiet WEB BROWSER Test Page TIP Viewing a module s web page is treated similar to viewing a web page on the internet The first time you open a page its image is stored as a temporary internet file in PC memory However each subsequent attempt to view that page will need to automatically update that image especially when making configuration changes With Internet Explorer click the Internet Options of the Tools menu select the General tab locate the Temporary Internet Files information and click on the Settings button Then select Automatically under Check for newer versions of stored pages Then click OK to return to the General screen and click OK again to save your settings IMPORTANT The input signal indicated only reflects the level of the outputs at the moment this screen is invoked and this does not continuously update You can click your browser s refresh button to get a new output update You can also use th
57. s GP rede E te D A bitty f 128 1 1 L00 caibe ation shtml x amp 973EN 4006 Calibration Page Module Calibration Control What to do next Channel OCH 0 OCH 3 OCH 1 OCH 4 Zero Span OZero OSpan setoutput restart calibration Use the scroll bar on the right to scroll down the page as shown below F Calibration Page Microsoft Internet Explorer Fle Ed Wew Favortes Took Hel p Ow la Seerch Favertes Ama E 3 E A tity 1 128 1 1 100fcaibr ation sht BE z restan calibration Restore Factory Calibration Test Page ph Home Page a internet The following table gives the calibration values for the base output range of these models Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output 1 3 Your success in recalibrating the output will strongly depend upon the WEB BROWSER accuracy and precision of your measurement system Cal LOW Zero Cal HIGH Full Scale Calibration Page Signal Write Signal Write 4 000mA 20 000mA 0 000V 10 000V Notes 1 Output values are written via 16 bit signed integer values with a resolution of 0 005 Isb 20000 represents 100 For example 100 0 amp 100 are represented by decimal values 20000 0 amp 20000 respectively The full range is 163 84 32768 decimal to 163 835
58. s recovered by performing a bitwise AND operation between the IP address and the mask itself with the result being the sub network address Gateway refers to the IP Address of the gateway if your local area network happens to be isolated by a gateway Typically it is assigned the first host address in the subnet If a gateway is not present then this field should contain an unused address within the host subnet address range The Host Name is the name to be assigned to this host if its address happens to be assigned dynamically using DHCP The Active IP Address refers to the current IP Address being used by this host as opposed to any new assignments being made via this page The MAC Address refers to the Media Access Control Address that uniquely identifies the hardware of this device This is a unique fixed address assigned to this module at the factory On IEEE 802 networks the Data Link Control DLC layer of the OSI Reference Model is divided into two sublayers the Logical Link Control LLC layer and the Media Access Control MAC layer The MAC layer interfaces directly with the network media each different type of network media requires a different MAC layer WEB BROWSER Network Configuration Note that Acromag Series 9xxEN Ethernet I O modules may take from 3 30 seconds to boot upon power up depending on your network configuration and whether a DHCP server is present This module can be placed into a default commun
59. st have the 0 10V output range selected Calibration is then performed by adjusting the output signal level until its measured value precisely matches the low or high calibration range endpoint indicated With the output level precisely adjusted to the Calibration LOW or HIGH range endpoint signal the module is triggered to store the output channel s raw DAC count by toggling the corresponding channel s Cal HIGH upper byte or Cal LOW lower byte calibration register You can choose to use the web browser calibration page Method 1 to Output Calibration accomplish calibration easiest or via direct register access using the Modbus TCP IP interface as described in Method 2 below IMPORTANT For best results you must measure the output signal via an external current or volt meter that is at least as accurate as the module itself better than 0 1 of span Always calibrate the low value before the high value and allow the module to warm up a few minutes prior to calibration Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com 1 4 BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output Output Calibration Method 1 Calibration Using The Built In Browser Interface 1 FON 9 Make sure the base output range is currently selected This is 4 20mA for 972EN models or 0 10V for 973EN models You can go back and use the Test Page controls to change the output range as
60. static IP address assigned to this module from the factory is 128 1 1 100 refer to product side label 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 site at www acromag com The Number of Sockets refers to the number 1 10 of Modbus TCP IP access points to allow for this host The default allows up to 10 sockets but you can restrict access by reducing this number Internally the module uses port number 502 which is reserved for Modbus The DNS Server refers to the IP address of the Domain Name Server used on this network A DNS server relates symbolic names to actual IP addresses while the DHCP server is responsible for dynamically passing out IP addresses A Subnet Mask is used to 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 correspond to the host portion of the address The unique subnet to which an IP address refers to i
61. tant value rounded can be used to calculate the effective resolution and to approximate the required output register program value see below The over range DAC count is internally limited to approximately 3812 or 21 1mA Internal DAC Count Versus Current Output Range DAC 100 181 3614 3614 The effective resolution is 1 part in the DAC Span The resolution and accuracy for the 0 1mA range is significantly less than the other ranges SPECIFICATIONS Model Numbers 972EN 4006 6 Output 972EN 4004 4 Output 973EN 4006 6 V Output 973EN 4004 4 V Output Analog Outputs Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com 30 BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output Analog Outputs Register Program Value Output values use integers with 20000 representing 100 The required output register program value can be approximated using the DAC values shown above via the formula Register Value 20000 DAC Count DAC 0 DAC Span Ideal Current Output Register Program Value Voltage Output Specifications 973EN Only Output Range Select 0 10V DC 0 5V DC or 0 1V DC Ranges are sub ranges of nominal 0 11 1V design limit which includes approximately 11 of over range Output Maximum Voltage 11 1V typical Output Accuracy See Resolution and Accuracy Table under General Specifications
62. this point The module will continue to boot itself as it normally does That is the green RUN LED will blink for 1 10 seconds as the unit acquires its address then remain ON for normal operation 4 If the STATUS LED fails to blink rapidly after a few seconds and the RUN LED just blinks for a few moments as it normally does then reinitializing the module has failed and you should try it again This time make sure that the DFT switch is completely depressed and held while powering the unit Also make sure that you are pressing the DFT toggle in the DFT direction left rather than the RST direction right Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output 1 T TECHNICAL REFERENCE e Safety Agency Approvals CE UL amp cUL listed plus Class 1 KEY FEATURES Division 2 Groups A B C D approval e Modbus TCP IP Protocol Support Supports up to 10 master sockets maximum number is user selectable using port number 502 Modbus TCP IP Default e Built In Web Pages Allows unit to optionally be configured controlled calibrated and monitored via a standard web browser over ethernet e Convenient Wink ID Mode Support Blinks green RUN LED in wink mode as a visual tool to help identify specific remote units on a network e Fully Independent w Direct I O Connection Self contained with no special
63. tifies the VO data type Register Functions Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com 2 2 BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output Register Functions Register Mirroring Below is a subset of standard Modbus functions that are supported by this module along with the reference register addresses 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 configure and control module I O 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 972EN 4006 Report Slave ID Example Response Unit ID Echo Unit ID Sent In Query Function Code 11 Byte Count 42 Slave ID Model No 08 972EN 4004 4 Current Outputs 09 972EN 4006 6 Current Outputs OA 973EN 4004 4 Voltage Outputs OB 973EN 4006 6 Voltage Outputs Run Indicator Status FFH ON Firmware Number 41 43 52 4F 4D 41 47 2C 39 33 30 30 2D String Additional 31 32 37 2C 39 37 32 45 4E 2D 34 30 30 36 2C Data Field 30 31 32 33 34 35 41 2C 30 31
64. ting Out Of Trouble in the Troubleshooting section for more information The minimum cable required for full operation of this device is Category 5 The term Category refers to classifications of UTP Unshielded Twisted Pair and STP Shielded Twisted Pair cables There are 3 main categories of cable Category 3 Category 4 and Category 5 The differences in classification is found in their electrical performance and this is documented in the TIA EIA 568 A standard This device is designed for use in harsh industrial environments Acromag recommends the use of shielded cable when wiring to this device Select STP Shielded Twisted Pair cable rather than UTP Unshielded Twisted Pair The use of shielded cable will help protect the data being transmitted from harmful EMI Electromagnetic Interference and RFI Radio Frequency Interference It will also help to lower your radiated emissions by keeping the cable from emitting EMI and RFI There are two types of cable conductors solid cable and stranded cable Stranded cables are more flexible than solid cables But since attenuation is higher for stranded cables than solid conductor cables these are generally reserved for short runs and patch applications less than 6 meters Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http Awww acromag com BusWorks 972 973EN Module User s Manual Modbus TCP IP Analog I V Output 35 Currently there are two types o
65. vely Four or six analog output channels for current or voltage according to model number The unit must be wired and configured for the intended output type and range see Connections Section for details The following paragraphs summarize this model s output types ranges and applicable specifications Current Output Specifications 972EN Only Output Ranges Select 0 20mA DC 4 20mA DC or 0 1mA DC The 0 20mA and 0 1mA ranges are sub ranges of the 4 20mA range Note The 0 20mA and 0 1mA output ranges may not precisely go to the OmA endpoint The 0 20mA range will typically approach OMA within 0 25 of span 50uA As such do not use exactly 0 as a calibration endpoint Output Maximum Current 21 1mA typical DAC count 3812 Output Accuracy See Resolution amp Accuracy Table under General Specifications Output Compliance 12V Minimum 13V Typical Output Load Resistance Range 0 to 6250 typical Response Time 11ms typical into 500Q for measurement to reach 98 of the final value in response to a step command Actual response time will vary with load Output Resolution 12 bits or 1 part in 4096 based on a theoretical 22 67mA over range value This is 5 535uA bit 22 67mA 4096bits Note the over range DAC count is internally limited to approximately 3812 or 21 1mMA See below for effective resolution calculations DAC Count Current Internal DAC count can be approximated by multiplying the output current by 180680 The resul
66. w acromag com and download our whitepaper 8500 765 Introduction To Modbus TCP IP or 8500 648 Introduction to Modbus Windows is a registered trademark of Microsoft Corporation 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 GETTING STARTED MOUNTING AND DIMENSIONG 0ceseeeeeeeenes CONTROLS amp INDICATORS 0ccseeeeeeeeeeeeeeees ISOLATION BARRIERG 0 0ceceeceeeeeeeeeeeeeeeenenees CONNECTIONG cccceeeee scene eeeeeeeeeeeeeneeeeeeeenens DIN Rail Mounting And Removal 006 NGtWOPK vies sseccvse cecccessetevsncssecenss denacessecevsres Analog Outputs ccececeeceeeneeeeeeseeeeenenenens Earth Grown iccsojcncqescstieenencntvercvsnccnenentieeene WEB BROWSER ceisesiccecsecssccceseseessineecseeeeseaneies HOME P siirsin innana aia Password Configuration Page esesss Network Configuration Page v m 0 ON NOODOORARARWVWVOW I O Mapping Optional i20 Function 10 Test Page ii sincensccis ten scnnescvtcececeeedecsneeeteesics 11 Calibration Page ccccceseecseeeeeeeeeeeeeeeeeneens 12
67. witch Acromag Model 900EN S005 Note that the 9O0OEN S005 switch includes automatic MDI MDI X crossover and a straight through or crossover cable s may be used to connect to the modules and the PC USE OF AN ETHERNET SWITCH TO NETWORK ia A HOST PC TO MORE THAN ONE MODULE Saree Acromag 900EN S005 fl 5 2 D 5 Port Ethernet Switch The ethernet port of the PC is or equivalent generally not automatic MDI MDI X crossover and is wired MDI The ethernet ports of this switch are automatic MDI MDI X CAT 5 UTP CABLE crossing and do not require HOST PC s A UP TO 100 METERS o E s TE crossover cables ETHERNET SWITCH E g Acromag 9xxEN 4012 a Because the Acromag ethernet switch pe pee Ethernet Modules l _ 900EN S005 is automatic MDI MDI X I AARAA ARARAAR L crossover use of a direct straight through The ethernet port of these or crossover cable is permissible ps p pi modules are not automatic oy MDI MDI X crossover but the use ofan auto crossing IMPORTANT IF THE HOST PC CONNECTS DIRECTLY TO THE MODULE CAT 5 UTP CABLE pitar climates me nead YOU MUST USE A CROSS CONNECT CABLE MDI X AS BOTH THE PC UP TO 100 METERS staichianrouah and crossover
68. y disk drive BOOTP works similar to DHCP but is usually found in older systems This protocol is defined by RFC 951 DHCP Dynamic Host Configuration Protocol refers to a protocol for assigning dynamic IP addresses to devices on a 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 DHCP also supports a combination of static and dynamic IP addresses DHCP BOOTP with fallback will revert to static IP addressing if the DHCP or BOOTP server cannot be found The unit includes a default address toggle switch to cause the module to assume a preset default factory address This switch is at the front of the module and is used to toggle the module into or out of Default Mode If you use the toggle switch at the front of the module to place the module in default mode then Default Communications Mode will be indicated at the bottom of this screen Click the Submit button to complete any changes made on this page Click the Wink On Off button to toggle the module in out of wink ID mode In this mode the module s green RUN LED will blink to confirm identification as an aide to locating a specific module on a network Refer to the Technical Reference section of this manual to learn more about IP Addressing terms and concepts The 972EN 4006 and 973EN 4006 analog output models are target output devices for Acroma

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