Acromag BusWorks 900MB Series User Manual
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Acromag BusWorks 900MB Series User Manual

Modbus/rs485 network i/o modules
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  • Page 1 (217) 352-9330 | Click HERE Find the Acromag BusWorks 913MB-0900 at our website:...
  • Page 2 Model 914MB Quad DC Voltage Input USER’S MANUAL ACROMAG INCORPORATED 30765 South Wixom Road P.O. BOX 437 Wixom, MI 48393-7037 U.S.A. Tel: (248) 295-0880 Fax: (248) 624-9234 Copyright 2000, Acromag, Inc., Printed in the USA. Data and specifications are subject to change without notice. 8500-635-K12F005...

  • Page 3: Table Of Contents

    Acromag, that this is the Buyer's responsibility. The information contained in this manual is subject to change without notice. Acromag, Inc., 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 1.0 INTRODUCTION...

  • Page 4: Key 913Mb/914Mb Features

    • Wide-Range DC-Power or 24VAC Power - This device An optional AC current sensor (Acromag Model 5020-350) receives power over a wide supply range and the power may be used in conjunction with the DC current input circuit of the terminals are diode-bridge coupled.

  • Page 5: Accessory Items

    For repairs to a product damaged in This 3-wire cable is used to connect the RS-485 side of shipment, refer to the Acromag Service Policy to obtain return Signal Converter 5034-214 to the RS-485 network terminals of instructions. It is suggested that salvageable shipping cartons Series 900MB modules.

  • Page 6: Default Mode Switch

    This can be easily accomplished with module, or before attempting service. All connections must be   Acromag’s user-friendly Windows 95/98 or NT 900MB made with power removed. Configuration Program. Configuration is normally done prior to CAUTION: Risk of Electric Shock - More than one field installation.

  • Page 7: Software Installation

    10. Now click on the [Acromag 900MB] program folder icon at connected from drain to source to help protect the output the bottom of your windows screen, then click on the...
  • Page 8 ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ Notes (Register Map): Model 913MB/914MB-0900 Register Map…continued The “x” following the leading character represents a four- Addr. Description Data Type/Format digit address location in user data memory. The leading Input Registers (3x References, Read-Only) character is generally implied by the function code and 3 0002...
  • Page 9 ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ Model 913MB/914MB-0900 Register Map…continued Model 913MB/914MB-0900 Register Map…continued Addr. Description Data Type/Format Addr. Description Data Type/Format Holding Registers (4x References, Read/Write) Holding Registers (4x References, Read/Write) Note: Changes to Holding Registers take effect following the Note: Changes to Holding Registers take effect following the next software or power-on reset of the module, except as noted.
  • Page 10 ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ Model 913MB/914MB-0900 Register Map…continued Model 913MB/914MB-0900 Register Map…continued Addr. Description Data Type/Format Addr. Description Data Type/Format Holding Registers (4x References, Read/Write) Holding Registers (4x References, Read/Write) CH0 ±10V 4 0025 Note: Changes to Holding Registers take effect following the Raw A/D Count Value...
  • Page 11 ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ Model 913MB/914MB-0900 Register Map…continued Model 913MB/914MB-0900 Register Map…continued Addr. Description Data Type/Format Addr. Description Data Type/Format Holding Registers (4x References, Read/Write) Holding Registers (4x References, Read/Write) Note: Changes to Holding Registers take effect following the Note: Changes to Holding Registers take effect following the next software or power-on reset of the module.
  • Page 12 ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ Model 913MB/914MB-0900 Register Map…continued Model 913MB/914MB-0900 Register Map…continued Addr. Description Data Type/Format Addr. Description Data Type/Format Holding Registers (4x References, Read/Write) Holding Registers (4x References, Read/Write) CH3 ±5V Cal 40062 Raw A/D Count Value 40075...
  • Page 13 ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ Model 913MB/914MB-0900 Register Map…continued Model 913MB/914MB-0900 Register Map…continued Addr. Description Data Type/Format Addr. Description Data Type/Format Holding Registers (4x References, Read/Write) Holding Registers (4x References, Read/Write) ±313mV Cal 4 0089 40100 Ideal A/D Count Value...

  • Page 14: Introduction To Modbus

    ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ Notes (Register Map)…continued: RTU Mode Byte Format For your convenience, this module mirrors the contents and Coding System 8-bit binary, hexadecimal 0-9, A-F, two operation of 3xxxx registers into 43xxx holding register hexadecimal characters contained in each space for systems and controllers that cannot directly 8-bit field of the message.
  • Page 15 Note that an additional stop bit is normally transmitted to fill error, it returns the same code in its response. However, if an out the character frame for no parity. Acromag units will accept exception occurs, it returns 1000 0011 (83H) in the function code one or two stop bits with no parity.
  • Page 16 ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ Note that the leading character of the 0x reference address is To summarize, the contents of register 40006 (two bytes) is implied by the function code and omitted from the address the channel 0 high limit of 75% (15000=3A98H).
  • Page 17 ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ The Force Single Coil query specifies the coil reference Preset Holding Register Example Response address to be forced, and the state to force it to. The ON/OFF Field Name Example Value (Hex) state is indicated via a constant in the query data field.
  • Page 18 This command returns the model number, serial number, and Number Of Coils Low Order 4 (04) firmware number for the Acromag slave device, the status of the Error Check (LRC or CRC) Run indicator, and any other information specific to the device.
  • Page 19 ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ Reset Slave Example Query Summary Of Data Types Used By 900MB Modules..continued Field Name Example Value (Hex) Data Types Description Slave Address 247 (F7) Temperature A 16-bit signed integer value with resolution Function Code 08 (08) of 0.1°C/lsb.

  • Page 20: Module Software Configuration

    ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ The CRC value is calculated by the transmitting device and is Modbus Exception Codes…continued appended to the message as the last field in a message—the low Code Exception Description order byte is appended first, followed by the high-order byte.
  • Page 21 ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ Starting The Program After clicking on the Series 900MB program icon to boot the Configuration Program, a screen will be displayed similar to that shown at right. To begin, click on the “Settings-Serial Communications…”...
  • Page 22 ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ Creating A Configuration File You may use File-New to create a new configuration file, or File-Open to open an existing configuration file. You may also use Module-Upload Configuration to retrieve the current active configuration from the module connected (recommended).
  • Page 23 ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ Alarm Configuration Clicking on the Configure Alarms property sheet tabs will display a screen similar to the one at right. The 914MB- 0900 Alarm Configuration screen is shown here (913MB is similar).
  • Page 24 ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ Testing Your Configuration The “Test” portion of this program allows you to monitor polling, module status flags, read input values, reset the module, and control or monitor outputs. CAUTION: If you have made changes to module configuration data screens but have not already downloaded those...

  • Page 25: Module Calibration

    ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ MODULE CALIBRATION The calibration process is greatly simplified using the controls of the Modbus Configuration Software as described here. CAUTION: If you have made changes to module configuration data screens but have not already downloaded those changes to the module, then selecting this page may change your software...

  • Page 26: Theory Of Operation

    This is indicative of an over-range condition at one or more module. Please refer to Acromag’s Service Policy Bulletin or input channels. DO NOT LEAVE UNUSED CHANNELS contact Acromag for complete details on how to obtain service OPEN OR FLOATING. It is recommended that you short parts and repair.

  • Page 27: Specifications

    (group one RTN per each group of 2 An optional external sensor is required to monitor AC current outputs). No deration is required at elevated ambient signals (Acromag Model 5020-350). This sensor generates a temperatures. DC milliampere signal of 0 to 11.17mA for the module (see Output R ON Resistance: 0.15Ω...

  • Page 28: Enclosure/Physical Specifications

    ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ ENCLOSURE/PHYSICAL SPECIFICATIONS This complies with test requirements of ANSI/ISA-82.01-1988 for the voltage rating specified. Inputs are additionally See Enclosure Dimensions Dwg 4501-857. Units are isolated channel-to-channel for common mode voltage to ±4V packaged in a general purpose plastic enclosure that is DIN rail mountable for flexible, high density (approx 1”...

  • Page 29: Configuration And Controls

    ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ It can be set from 0-65500 ticks, with 1 tick equivalent to module address set to 247, and no parity selected. 1.085us. Some signal converters or host/software systems The Status LED will flash ON/OFF when the module is in cannot accept an immediate response from the slave without the default mode.
  • Page 30 ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ Slave – Watchdog: A watchdog timer may be applied to the I/O The corresponding digital output will transfer to the alarm channels of this module. Use the Watchdog Time Register to state when the high limit value is exceeded and remains at select a timeout period from 1 to 65534 seconds (18.2 that state until the input signal has retreated below the limit,...

  • Page 31: Simplified Schematic (4501-853)

    ® BusWorks Model 913MB/914MB Network I/O Module User’s Manual DC Current/Voltage Input ___________________________________________________________________________________________ ISOLATED INPUT ISOLATED POWER INPUT POWER 10-36V DC 24VAC ISOLATED POWER - CH-TO-CH ISOLATED TO +/-5V FLYBACK COMMON-MODE OUTPUT POWER OUT0 OUT1 CONVERTER OPTI OUT2 MULTIPLEXER ISOL AT90S8515 OUT3 MICRO...

  • Page 32: Network Connections (4501-805)

    DIGITAL OUTPUTS RS485 DIGITAL I/O RS485 MODEL 906MB-0900 ANY RS232-TO-RS485 CONVERTER MODEL 924MB-0900 acromag (ACROMAG MODEL 4SCC-TTM-X SHOWN) SET BAUD RATE, PARITY, SET BAUD RATE, PARITY, AND ADDRESS AND ADDRESS DIGITAL IN or OUT DIGITAL IN or OUT CJC-0 INPUTS 0,1...

  • Page 33: Interposing Relay Conn. & Contact Pro. (4501-856)

    NOTE 2: DIODE ADDED LOCAL TO INDUCTIVE LOAD TO SHUNT THE REVERSE EMF THAT IS GENERATED WHEN CURRENT THROUGH THE INDUCTOR (RELAY COIL) IS TURNED OFF. SHIELDED CABLE INPUT CONNECTIONS (SEE DRAWING 4501-855) 4501-856A Acromag "T" RAIL DIN MOUNTING DIN EN 50022, 35mm DIGITAL OUTPUTS RS485 INPUTS 0,1 INPUTS 2,3 11 12 13 14 15 16 3.90...

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