Acromag BusWorks 900EN Series User Manual
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Acromag BusWorks 900EN Series User Manual

Modbus tcp/ip 10/100mb industrial ethernet i/o modules. eight ch differential current/voltage inputs
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  • Page 1 (217) 352-9330 | Click HERE Find the Acromag BusWorks 968EN-4008 at our website:...
  • Page 2 USER’S MANUAL ACROMAG INCORPORATED Tel: (248) 295-0880 30765 South Wixom Road Fax: (248) 624-9234 Wixom, MI 48393-2417 U.S.A. Email: sales@acromag.com Web: http://www.acromag.com Copyright 2009-2014 Acromag, Inc., Printed in the USA. 8500806G Data and specifications are subject to change without notice.

  • Page 3: Table Of Contents

    This is very important where property loss or human life is Symbols on equipment: 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 DIMENSIONS……………………..

  • Page 4: Mounting And Dimensions

    The I/O circuit, network, and 3.3V 5.0V power circuits are isolated TRANSFORMER from each other for safety and 967/8EN ISOLATION noise immunity. DIAGRAM INPUTS 0, 1, 2 INPUTS 3, 4, 5 25 26 ANALOG IN ANALOG IN _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 5: Connections

    (the Ethernet port of your PC is typically wired MDI). Thus, you can use either a straight-through or crossover cable to connect this device directly to a PC, Ethernet switch, or another unit. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 6 PC or laptop with a NIC installed. In any case, you must set the address of your network interface card to an address within the default address domain of the Acromag unit. That is, an address from 128.1.1.0 to 128.1.1.255, except for 128.1.1.0 which is typically reserved for servers, and 128.1.1.100, which is the default address of the 967/8EN itself.

  • Page 7: Power

    You can use an Ethernet switch or switching hub to build a network of CONNECTIONS Ethernet modules, similar to that shown below. This drawing shows how to network-connect these modules to a 5-port Ethernet switch (Acromag Model Network 900EN-S005). Note that the 900EN-S005 switch includes automatic...

  • Page 8: Earth Ground

    (ONE CHANNEL) +01- +02- INPUT SHUNT (967EN) To A/D DC mA NOTE: GROUNDING (+/-10V) IF CURRENT LOOP IS NOT ALREADY GROUNDED, THEN IT IS RECOMMENDED THAT YOU CONNECT INPUT(-) TO EARTH GROUND AS SHOWN. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 9: Analog Common

    THE C TERM INAL IS ANALOG COM M ON AND IS IF INPUT SIGNAL IS NOT ALREADY INTERNALLY ISOLATED FROM EARTH GROUND GROUNDED TO KEEP DIFFERENTIAL BY A SAFETY RATED ISOLATION CAPACITOR. _______________________________________________________________________________________ INPUTS FROM FLOATING. Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 10: Web Browser

    (unit assumes IP address 128.1.1.100), allowing you to re-invoke the Password Configuration Page and change the username and password as required. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 11: Password Configuration Page

    Use this screen to set the network configuration parameters for your module (these parameters cannot be set via Modbus registers). You may have to consult your network administrator to complete the contents of this page. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 12 Default Mode uses a static IP Note: In order to network your PC with an Acromag module, you may have address of “128.1.1.100”, a to consult with your network administrator and either temporarily change the...
  • Page 13 Host Name (see above). Use DHCP tells the unit its IP address is to be obtained dynamically, and may change each time this device is connected to the network. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 14: I2O Configuration Page

    (968EN). For simplicity, the bipolar analog I/O channels of BusWorks order to process i2o modules are all normalized to ±20000 counts, representing ±100%. messages. Likewise, BusWorks unipolar channels are normalized to 0-20000, representing 0-100%. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 15 For example, if you set this field to 10% of a ±10V input range, then a change in signal of 2V or greater will trigger the i2o transfer. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 16 0) will map to zero at the output (truncated). Likewise, if I select Unipolar- to-Bipolar for an input that is bipolar, then your negative input range may achieve unexpected/invalid output values. Be sure to make these selection properly to avoid unexpected results. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 17: Input Configuration Page

    “Channel Configuration Submit” button at the bottom of the page to activate your configuration (reconfiguration takes effect immediately following “Channel Configuration Submit”). Use the scroll bars on the right to scroll down the page. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 18 0mA, or 4mA) and this cannot be changed. The indicated value will correspond to 0% of signal and a normalized count of -20000 for ±20mA range, or 0 for the 0-20mA and 4-20mA ranges. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 19 You must also Enable Floating Point Support to accomplish rescaling. If you are using only a portion of this range, you may have to interpolate your scaled full-scale. Units: For reference, enter the units of measure for your rescaled zero and full-scale. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 20 Last Value is selected here. Channel Configuration Submit: Click this button to submit your channel configuration selections. Select another channel and repeat this process for each channel of this unit. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 21 So leave it off if you don’t need to rescale or totalize. Note that even with floating point disabled, the measured input value will still indicate a floating point number, but the scaling and totalizing field will indicate “Inactive”. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 22: Test Page

    Click and drag this control to set the rate at which you wish to read the inputs via this web page. The rate is indicated just to the right of this control. Disable input polling by dragging it to the far right. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 23: Calibration Page

    Use the scroll bars to the right to scroll down the page. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 24 (i.e. each A/D channel). To begin, at the top of the Input Calibration Page, first select the channel to be calibrated. Next select the Calibration Configuration for the channel before continuing. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 25 _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 26 You can enter your own measured value in this field if you need to recalibrate it (not recommended). _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 27 For current inputs, manual calibration additionally compensates for the initial error of the input shunt resistor (up to ±0.05%). IMPORTANT: Always allow the module to warm up a few minutes prior to calibration. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 28 If “Yes” was selected for this query, then you do not need to repeat this procedure, as this calibration will be used to determine the response for the other port channels. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 29 7. Repeat these steps for the other input channels to be calibrated. 8. When finished calibrating, write 0x0000 to the Calibration Access Register to replace write protection for the calibration registers and to help prevent potential miscalibration. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 30: Utility Page

    This is because the first click only activates the control. Use the scroll bar on the right to continue scrolling down the page as shown below: _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 31 (destination stations may still require their own calibration). Note: Unit will only export its configuration to identical model numbers. An industrial 968EN-4008 cannot export to a commercial version 968EN-4C08. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 32: Troubleshooting

    Cannot Browse Unit… Your browser may be setup to use Temporarily disable the use of a a proxy server for LAN proxy server by your browser (see communications. procedure of next page). _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 33 Calibration Page and make sure a voltage between 4.9965 and 5.0035 (5V±0.07%) is indicated. If not, you may attempt to calibrate this yourself, or return the unit to Acromag for calibration, repair, or replacement. Current Inputs Have Greater Inaccuracy… Auto calibration of current inputs...

  • Page 34: Trouble Browsing Your Module

    BusWorks® 967/8EN User’s Manual Modbus TCP/IP Analog Input _________________________________________________________________________________ Refer to Acromag Application Note 8500-734 for help in setting up network TROUBLE- communication with your unit (see CDROM shipped with unit or down-load it SHOOTING from www.acromag.com). This document gives details for changing your PC’s TCP/IP configuration in order to communicate with hardware similar to...

  • Page 35: Technical Reference

    “Plug-In” Terminal Blocks make wiring removal, & replacement easy. • Enclosure Has Integrated DIN-Rail Mount for “T” type DIN rail. • Wide-Range DC-Power is diode-coupled for use with redundant supplies, and/or battery back-up. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 36: How It Works

    THERE IS ONE PORT OF EIGHT DIFFERENTIAL CHANNELS. THERE ARE TWO ANALOG COMMONS. PUSH +12V YOU MUST CONNECT ANALOG COMMON +3.3V BUTTON TO EARTH GROUND TO KEEP INPUT CIRCUIT FROM FLOATING. 5.000V CAL REFERENCE _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 37: Modbus Registers

    Below is a subset of standard Modbus functions that are supported by this unit 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. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 38: Register Mirroring

    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 downloading whitepaper 8500-765, “Introduction To Modbus TCP/IP”.

  • Page 39: Data Types

    TC type measured in degrees C. For example, a JTC type has a range of -210 to 760C, which read -2100 to 7600 counts within the data register respectively. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 40: Register Map

    16-bit Signed Integer Data of unipolar ranges). 30023 0016 CH 05 Data 16-bit Signed Integer Data 30024 0017 CH 06 Data 16-bit Signed Integer Data 30025 0018 CH 07 Data 16-bit Signed Integer Data _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 41 CH 07 Data LO IEEE-754 Floating Point LO Bytes 30081 0050 CH 07 Data HI IEEE-754 Floating Point HI Bytes Reserved – Do Not Use 30082 0051 Reserved Reserved – Do Not Use 30097 0060 Reserved _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 42 See explanation for channel 00 above. (0007) CH07 Config 40008 Reserved – Do Not Use (0008) Reserved 40009 Reserved – Do Not Use (000F) Reserved 40016 *Note: Totalizer option is not available on commercial models. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 43 16-bit Signed Integer Data 40033 (0021) CH2 ±5V Cal LO 16-bit Signed Integer Data 40034 40035 (0022) CH02 ±10V Cal HI 16-bit Signed Integer Data (0023) CH02 ±10V Cal LO 16-bit Signed Integer Data 40036 _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 44 (lsb is lowest numbered channel of group). First write 24106 to Calibration Access Register 40037 to remove write- protection from the calibration value registers before triggering. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 45: Default Register Settings

    Totalizer Time Base is NA Input is ±20mA or ±10V Digital Filter/Input Averaging 0000H 0, No Input Averaging Floating Point Enable & Byte Order 0000H Disable, b3-b2-b1-b0 Order Wink Register 0000H OFF, Do Not Wink _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 46: Specifications

    Connections section for details). Inputs are bipolar differential and the signal can be input to either terminal and returned on the opposite terminal. The following paragraphs summarize this model’s input types, ranges, and applicable specifications. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 47 Input Reference Test Conditions: ±20mA (967EN) or ±10V (968EN) input; ambient temperature = 25  C; 24VDC supply. Input Over Voltage Protection: Bipolar Transient Voltage Suppressors (TVS), clamp level less than 50V and greater than 18V. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 48 Input Averaging was disabled. 2. Test Unit (968EN-4008) was directly connected to the Ethernet port of a 973EN-4006. Only one i2o Chanel was used for the test only using percent of span. Input Averaging was disabled. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 49: Memory

    PSRAM (Volatile): This 4 Megabyte memory is external to the central processor and used as the run time memory for high-speed execution of this unit’s internal program. Its contents are cleared on power-down. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 50: Enclosure And Physical

    10m in length. Divide power by your voltage to approximate maximum current and select a supply that can deliver at least twice this 250mA or less to protect unit. amount. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 51: Reliability Predictions (Mtbf)

    Reference Standard: CNR indicates investigation to Canadian Standard C22.2, No’s. 142-M1987 & 213-M1987; USR indicates investigation to United States UL Standards 508 Seventeenth Edition & ISA 12.12.01:2000. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 52: Ethernet Interface

    Refer to Acromag Application IP Address: The module IP address can be preset by the user (static) and loaded from internal non-volatile memory, or it can be automatically...
  • Page 53 LINK (Green) – Indicates Ethernet link status (ON if auto-negotiation has successfully established a connection ACT (Orange) – Indicates current activity on the Ethernet port (ON if data is being transmitted or received). _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 54: Accessory Cables

    TIA/EIA 568A standard. Category 5 cable includes four twisted wire pairs at eight twists per foot. 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).
  • Page 55 Cable Model 5035-355 – A yellow, 3 foot long, single-shielded Category 5e 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- Patch Cables &...

  • Page 56: Revision History

    Update input over/under range specifications (ECN 12A011). 21 APR 14 CAP/SRW Update ATEX per latest standards (ECO 14D012). Update “WARNING - EXPLOSION HAZARD - Substitution 10 JAN 2019 CAP/ARP of any components...” per uL. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

This manual is also suitable for:

Busworks 967en-4008Busworks 968en-4008Busworks 967en-4c08Busworks 968en-4c08

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