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
- Single Slot - 1771 backplane compatible
- 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 implementation
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Modbus Server Protocol Specifications
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The server driver supports connections to Modbus TCP/IP clients supporting Service Port 502 using the standard MBAP protocol, and clients supporting Modbus on Service Port 2000.
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Modbus Server Protocol Specifications
The server driver supports connections to Modbus TCP/IP clients supporting Service Port 502 using the standard MBAP protocol, and clients supporting Modbus on Service Port 2000.
General
- Supports five independent server connections for Service Port 502
- Supports five independent server connections for Service Port 2000
Status Data
Error codes, counters, and port status available
Modbus Function Codes
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Code
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Description
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1:
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Read Output Status
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2:
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Read Input Status
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3:
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Read Multiple Data Registers
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4:
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Read Input Registers
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5:
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Write Single Bit
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6:
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Write Single Data Register
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15:
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Write Multiple Bits
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16:
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Write Multiple Data Register
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Modbus TCP/IP Client
The client driver supports the active reading and writing of data with Modbus TCP/IP compatible devices.
One client connection available (connect up to 100 servers/devices with 100 commands)
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 - 10150 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
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 connector
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RJ45 to DB-9M cable
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6-foot RS-232 configuration cable
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Ethernet and CFG Ports
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Ethernet Port
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RJ45 connection
10/100 Mbit Ethernet support (auto-sensing)
Electrical Isolation 1500 V rms at 50 Hz to 60 Hz for 60 s, applied as specified in section 5.3.2 of IEC 60950: 1991
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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CFG Port
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RJ45 (DB-9M with supplied cable)
RS-232 only
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Shipped with unit
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RJ45 to DB-9M adapter cable and 6-foot RS-232 configuration cable for debug port
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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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