Modbus TCP/IP Communications Module
MVI71-MNET
The MVI71 Modbus TCP/IP Communication Module is designed to allow PLC processors to interface easily with other Modbus TCP/IP protocol-compatible devices.
Compatible devices include not only Modicon processors (which support the Modbus TCP/IP protocol) but also a wide assortment of other clients and server devices.
Features and Benefits
The MVI71-MNET module is a single slot solution that provides a powerful connection between Rockwell Automation's PLC processor and Modbus TCP/IP network applications.
The TCP/IP Modbus network applications include those networks hosted by Modicon Quantum processors, networks controlled by operator interface software packages, and the growing number of manufactured devices that support this protocol. The module acts as an input/output module between the Modbus TCP/IP network and the Rockwell Automation backplane. The data transfer from the processor is asynchronous from the actions on the Modbus TCP/IP network. A 5000-word register space in the module exchanges data between the processor and the Modbus TCP/IP network.
- Support for the storage and transfer of up to 5000 registers to/from the PLC processor using the block transfer or side-connect interface
- User-definable module memory usage
- 10/100 MB Ethernet compatible interface
- Configurable parameters for the client including a minimum response delay of 0 to 65535 mSec and floating point support
General Specifications
- The module is recognized as an Input/Output module and has access to processor memory for data transfer between processor and module
- Ladder Logic is used for data transfer between module and processor. Sample ladder file included.
- Configuration data obtained from configuration text file downloaded to module. Sample configuration file included.
Applications
With the growing trend of Ethernet technology in the industrial marketplace, this product has a wide variety of application uses.
- Food processing
- Petrochemical
- Pulp and paper
- Automobile manufacturing
- Water and Wastewater
- Oil and Gas
- Power and Electric
Functional Specifications
General Protocol specifications
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Type
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Specifications
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Floating Point Data
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Floating point data movement supported, including configurable support for Enron and Daniels floating poiont implementations
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Supported Function Codes
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Function Code Descriptions
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FC 1
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Read Coil Status (Bits)
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FC 2
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Read Input Status (Bits)
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FC 3
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Read Input Registers
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FC 4
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Read Holding Registers
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FC 5
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Write Single Coil (Bit)
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FC 6
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Write Single Holding Register
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FC 15
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Write Multiple Coils (Bits)
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FC 16
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Write Multiple Holding Registers
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Modbus Server Protocol Specifications
The server driver supports up to ten (10) connections to Modbus TCP/IP Clients using Service Port 502 with the standard MBAP protocol, and up to an additional ten (10) Clients using an other service port for Encapsulated Modbus protocol.
Modbus TCP/IP Client
The Client driver supports the active reading and writing of data with Modbus TCP/IP compatible devices.
One Client with up to 100 total commands. (Allows connections to as many as 100 Servers)
Hardware Specifications
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Form Factor
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Single Slot - 1771 chassis compatible
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BTR/BTW data transfer
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Local or remote rack
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Backplane Current Load
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800 mA @ 5V
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Operating Temperature
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0 to 60 deg C (32 to 140 deg F)
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Storage Temperature
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-40 to 85 deg C (-40 to 185 deg F)
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Shock
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30g operational
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50g non-operational
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Vibration
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5g from 10 to 150 Hz
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Relative Humidity
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5 to 95% (w/o condensation)
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LED Indicators
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Module status
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Backplane transfer status
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Application status
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Error LED status
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Link and Activity LED
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Configuration Port (CFG)
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DB-9M PC compatible
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RS-232
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Hardware handshaking
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Ethernet Port
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RJ45 connector
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10/100 Mbit Ethernet support (auto-sensing)
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Electrical Isolation 1500 V rms at 50 Hz to 60 Hz for 60 seconds, applied as specified in section 5.3.2 of IEC 60950: 1991
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Ethernet Broadcast Storm Resiliency = less than or equal to 5000 [ARP] frames-per-second and less than or equal to 5 minutes duration
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Shipped with unit
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RJ45 to DB-9M adapter cable for configuration
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6-foot RS-232 null-modem configuration cable
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Ordering Information
| MVI71-MNET |
Modbus TCP/IP Communications Module |
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| To place an order, please contact your local ProSoft Technology, Inc. distributor. For a list of ProSoft distributors near you, click here. |
Distributors:
Place your order by email to orders@prosoft-technology.com:, fax to +1 661-716-5101.
Sales and Support:
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