Acromag Bus Works 900EN Series User Manual
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Acromag Bus Works 900EN Series User Manual

Modbus tcp/ip 10/100mb industrial ethernet i/o modules. 16 ch di/o w/ event counters (industrial grade) / 16 ch di/o (commercial grade)
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  • Page 1 (217) 352-9330 | Click HERE Find the Acromag BusWorks 989EN-4016 at our website:...
  • Page 2 Modbus TCP/IP 10/100MB Industrial Ethernet I/O Modules Model 989EN-4016 16 CH DI/O w/ Event Counters (Industrial Grade) Model 989EN-4C16 16 CH DI/O (Commercial Grade) 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...

  • 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 TRANSFORMER power circuits are isolated 3.3V TRANSFORMER from each other for safety and 989EN noise immunity. ISOLATION DIAGRAM DIGITAL IN or OUT DIGITAL IN or OUT 25 26 DIGITAL I/O DIGITAL I/O _______________________________________________________________________________________ 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 IP address setting to an address more meaningful to your own network. Application Note 8500-734 is downloadable from the Acromag website and covers this process in greater detail.

  • 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: Excitation

    The current can also be set to only source 2mA continuous. This current can also be turned OFF by tri-stating the port inputs. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 9 OPEN-LOAD CURRENT. AN EXTERNAL PULL-DOWN RESISTOR MAY BE REQURIED FOR SOME APPLICATIONS. NOTE: IT IS ACCEPTABLE TO UTILIZE THE 24VDC POWER TO THE UNIT TO DRIVE THE EXCITATION TERMINAL AND/OR THE CONTACT EXCITATION. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 10 EVENT COUNT ER IS RAT ED FOR FREQUENCIES 0-150HZ selectable edge, and count PIN CAN BE USED AS COUNT ER OR DIGIT AL I/O LINE auto-restore after a power reset. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 11 EXCITATION IS REQUIRED (8-28V) TANDEM OUTPUT MOSFET IS OFF. INPUTS ARE TRI-STATED IN THIS EXAMPLE R = EXTERNAL RESISTOR, WHICH MAY BE NEEDED IF DEVICE REQURIES MORE THAN 2mA TO OPERATE OR INPUTS ARE TRI-STATED _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 12: Digital Outputs

    (N.O.) this can pull 50uA of drive 8-28V current through the load in the OFF state. LOAD/LINE OPEN-DRAIN OUTPUTS SHARE RETURN. EXCITATION IS REQUIRED. EXTERNAL EXCITATION IS 8V MIN TO 31V MAX. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 13 E X C characteristics as all the other Digital Outputs. Note: Alarm Outputs must be 8-28V enabled in order to operate. OPEN-DRAIN OUTPUTS SHARE RETURN. EXCITATION IS REQUIRED. EXTERNAL EXCITATION IS 8V MIN TO 28V. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 14 But fast action does limit repeated thermal stresses which helps preserve the life of the output driver. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 15: Web Browser

    Note: If you cannot download the module web page, it may be that the address of your network interface adapter is not set to a valid IP address within the module’s default address domain. Refer to Applications Note 8500-734 for information on how to accomplish this. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 16: Password Configuration 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. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 17: Network Configuration Page

    DFT push-button NOTE: In order to network your PC with an Acromag module, you may have at the front of the module. To to consult with your network administrator and either temporarily change...
  • Page 18 In some systems, it can even change while it is still connected. DHCP also supports a combination of static and dynamic IP addresses. For example, DHCP with fallback will revert to a static IP address if the DHCP server cannot be found. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 19: I/O Configuration Page

    To go back to the I/O Configuration Page, scroll to the bottom of the Help Page, and there will be a link back. Alternatively, you can click on the back button on your internet browser. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 20: I/O Configuration

    You do not normally need to use this control, but it may be useful for trouble-shooting and isolating I/O problems between input & output circuitry. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 21 I/O status register. This pull-down current is separate from the wetting current generators (pull-ups) of the tandem inputs. If you are driving loads sensitive to low current in the OFF state, leave this feature OFF. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 22 Reset 989EN – A system reset button is included (Reset 989EN), which will reset the entire system, sending all outputs to the specified power-up/reset state. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 23 Outputs can also shutdown temporarily for excitation over- voltages greater than 28V. However, outputs can also be directed to automatically retry their control once a fault condition has been removed. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 24: Counter Configuration Page

    Counter Debounce (Default = Disabled) – Event Counters are equipped with a programmable debounce for noisy input signals such as electro- mechanical relay contact bounce. Counter Debounce Time - Debounce Time can be set from 0 to 65535ms. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 25 To configure the counter for “Up Counting”, write 0000H to register 40013. To configure the counter for “Positive” edge counts, write 0010H to register 40012. To configure the counter for “Last Count” restore, write 0000H to register 40011. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 26 To enable the counter “Alarms”, write 00FFH to register 40015 To enable the Latching Alarm, write 00FFH to register 40014 To set the “Pre-Load Value”, write 03E8H to registers 40017, 40019, 40021, 40023, 40025, 40027, 40029, 40031, and 40033. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 27: Counter Test Page

    Under the timer, the state of an alarm channel is indicated by a simulated read the Pulse Time. LED (bright red for “ON”) below the channel number. The Alarm Reset will reset an alarm state as well as reset the counter to the Pre-Loaded Value. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 28: 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 29: I/O Self Test Help

    Input Read Fault (Walk 1) - Read inputs command error Write/Read mismatch – Input did not match output (any failure) Bit 14: Output Write Fault (Walk 0) – Write outputs command error Bit 15: _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 30: Troubleshooting

    A continuously flashing green Run LED can signify the unit has failed to initialize and may require repair if you are sure you are using a good network connection and proper power voltage. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 31 Connect an excitation voltage, or pull the input signal up above the 4.3V maximum input threshold as required. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 32 Check your power supply voltage and minimum? make sure that it is at least 18V. Communication To Unit is Lost… Was communication interrupted by Reset the unit via cycling power. severe interference or shock? _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 33: Getting Out Of Trouble

    BusWorks® Model 989EN User’s Manual Modbus TCP/IP Digital I/O & Counters _________________________________________________________________________________ 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 34: Technical Reference

    16mA to 2mA, 20ms after the input crosses the 4V threshold. This is to provide higher levels of current during switch closure, which helps to reduce oxide buildup on switch contacts. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 35: How It Works

    These sources also eliminate the need to pull-up the tandem open-drain mosfets of the output circuitry. Optionally, these current sources can be disabled and the input will operate as a simple high-impedance comparator with a 4.0V threshold. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 36 THERE ARE SIXTEEN DIGITAL I/O CHANNELS AND FOUR RTN CONVERTER TERMINALS. ALL PORTS SHARE COMMON RETURN. THE ENCLOSURE IS COMMON TO EARTH GROUND. EARTH GROUND IS ISOLATED. ENCLOSURE IS COMMON TO EARTH GROUND _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 37: About Modbus Tcp/Ip

    This process helps to ensure that any loss of TCP packets will be noticed and that if needed, they can then be re-sent in the correct sequence. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 38 Modbus uses TCP/IP Ethernet to carry the data of the Modbus 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). _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 39: Ip Addressing

    IP address in a subnet is always used as a broadcast address. Anything sent to the last IP address of a subnet is sent to every host on the subnet. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 40: Dynamic Host Configuration Protocol

    The DHCP server will check the shared supply, and if all addresses are in use, the server will send a busy signal to the client which tells it to try again later. Static IP addresses will ensure a connection every time, but dynamic addresses do not. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 41: Domain Name System (Dns)

    For example, the DNS allows us to use “Acromag.com” as an IP address rather than a complicated number string. Modbus registers are organized into reference types identified by the leading...

  • Page 42: 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 43: 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 44: Register Map

    1, etc.). A set bit (1) means input is ON (active-low < 4V threshold). This signal is active-low below A clear bit (0) means input is OFF (high, > 4V threshold). I/O will not operate without excitation. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 45 This registers reflects the upper word Significant count value of Channel 0. Word) Note that this register cannot be changed directly. To preset a count value use Holding Register 40015. This is only available on the 989EN-4016 model. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 46 See explanation for CH 0 above, but (0011) Count High apply to CH 7. Value MSW 30019 CH 7 Input See explanation for CH 0 above, but (0012) Count Low apply to CH 7. Value LSW _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 47 Data Format: 16-bit Unsigned Integer (0000) Watchdog WD Time Set a watchdog time from 1 to 65534 seconds in 1 second intervals. Set to 65535 (FFFFH) or 0 (0000H) to disable Def=FFFFH the watchdog timer. (Disabled) _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 48 0000H= Tri-State Disabled. built into the unit to pull the Def=0000H FFFFH= Tri-State Enabled. Inputs are unused tri-stated inputs to the set to high impedance and wetting (Tri-State ON state. currents are disabled. Disabled) _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 49 I/O Error Status protection for loads that experience bits. higher than expected current and require a fast shutdown. It is also Def=FFFFH useful to prevent a shorted load from (Enable Fast) blowing a series fuse. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 50 Bit 2: 0 = Disabled, 1 = Enabled channel is automatically Bit 1: 0 = Disabled, 1 = Enabled disabled. Bit 0: 0 = Disabled, 1 = Enabled _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 51 Bit 3: 0 = Up, 1 = Down Bit 2: 0 = Up, 1 = Down Def= 0000H Bit 1: 0 = Up, 1 = Down (Count Up) Bit 0: 0 = Up, 1 = Down _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 52 See explanation for counter 0 above, (0014) Load Low but apply to counter 2 Value 40022 Counter 3 Pre- See explanation for counter 0 above, (0015) Load High but apply to counter 3 Value _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 53 Set a debounce time from 1 to 65534 Value milliseconds in 1 millisecond intervals. Set to 65535 (FFFFH) or 0 (0000H) to disable the watchdog timer. Def= 0005H Note: Debounce Value is applied to ALL channels enabled with debounce. milliseconds) _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 54 Bit field (Read/Write) – The 16 bits of this field correspond to channels 0-15. The bit position corresponds to the output channel number (lsb is ch. 0). A clear bit (0) is OFF, while a set bit (1) is ON. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 55 Bit 3: 0 = Don’t Start, 1 = Start Bit 2: 0 = Don’t Start, 1 = Start Bit 1: 0 = Don’t Start, 1 = Start Bit 0: 0 = Don’t Start, 1 = Start _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 56 42xxx Holding Register space using an address offset of 42000. 43001 This block Refer to Register Mirroring. 3xxxx Mirrors 3xxxx Input Registers are mapped to the Registers. 43xxx Holding Register space using an address offset of 43000. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 57: Specifications

    Pre-Load Value to start counting from. After a roll-over / reset, the counter will default back to this value. Input Pulse Time: Each Input Counter is equipped with a timer which will display the time (in milliseconds) between pulses. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...
  • Page 58 The open-drain outputs can operate without external pull-ups as the tandem input circuit includes “wetting current” generators (integrated pull-ups). You can add pull-ups to increase output current drive capability beyond 2mA/channel. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 59: Digital Outputs

    You should not attempt to operate outputs above these limits or you may exceed the safe operating range for the foils of the circuit board, which may result in permanent damage to the unit. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 60: General Specifications

    Description Transmit Positive Transmit Negative Receive Positive Not Used Connects to Pin 5 Not Used Connects to Pin 4 Receive Negative Not Used Connects to Pin 8 Not Used Connects to Pin 7 _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 61: Agency Approvals

    Degree 2 environment with an installation category (over-voltage category) II rating. Electromagnetic Interference Immunity (EMI): Inputs/outputs have demonstrated resistance to inadvertent state changes with interference from switching solenoids, commutator motors, and drill motors. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 62: Ethernet Interface

    The metal shield is capacitively coupled to earth ground terminal via an isolation TVS and capacitor. Data Rate: Auto-sensed, 10Mbps or 100Mbps. Duplex: Auto-negotiated, Full or Half Duplex. Compliance: IEEE 802.3, 802.3u, 802.3x. _______________________________________________________________________________________ Acromag, Inc. Tel:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 63: Controls & Indicators

    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 64 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:248-295-0880 Fax:248-624-9234 Email:sales@acromag.com http://www.acromag.com...

  • Page 65: Patch Cable & Crossover Cable

    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- S005 switch.

  • Page 66: 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:

Bus works 989en-4016Bus works 989en-4c16

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