产品简介：

Modbus Master/Slave Communication Module MVI69-MCM MVI69-MCM Interactive Tour The MVI69 Modbus Communication Module allows Rockwell Automation CompactLogix processors to interface easily with other Modbus protocol compatible devices. Compatible devices include not only Modicon PLCs (which all support the Modbus protocol) but also a wide assortment of end devices. The module acts as an input/output module between the Modbus network and the Rockwell Automation backplane. The data transfer from the processor is asynchronous from the actions on the Modbus network. A 5000-word register space in the module exchanges data between the processor and the Modbus network.

产品介绍：

Features and Benefits
The inRAx Modbus Master/Slave Communications module (MVI69-MCM) is designed to allow CompactLogix processors to interface easily with Modbus protocol-compatible devices and hosts.

Many host SCADA packages support the Modbus protocol, while devices commonly supporting the protocol include several PLCs, as well as many other third party devices in the marketplace. (For a partial list of devices that speak Modbus, please visit the ProSoft Tested section of the ProSoft web site).

Applications
•Applications using the Modbus Communication Module can be found in many industrial sectors and in the following applications
•Foreign device data concentrator
•Pipelines and offshore platforms
•Food processing
•Mining
•Pulp and paper
•SCADA communications
•Supports Enron version of Modbus protocol for floating point data transactions.
Functional Specifications
Type
 Specifications
 
Communication parameters (configurable)
 Port 1: Baud Rate: 110 to 38.4K baud RS232

Port 2,3: Baud Rate: 110 to 115K baud RS232, 485, 422 (jumper selectable)

Stop Bits: 1 or 2

Data Size: 5 to 8 bits

Parity: None, Odd, Even

RTS Timing delays: 0 to 65535 ms
 
Modbus Modes
 RTU Mode (binary) with CRC-16

ASCII mode with LRC error checking
 
Floating Point Data
 Floating point data movement supported, including configurable support for Enron implementation 
 

Modbus Slave Protocol Specifications

The ports on the MVI69-MCM module can be individually configured to support the slave mode of the Modbus protocol. When in slave mode, the module can accept Modbus commands from aｍａｓｔｅｒto read/write data stored in the module's internal registers. This data is easily transferred to the CompactLogix processor's data registers.

Modbus Slave Driver
 
Node Address
 1 to 247 software selectable
 
Status Data
 Error codes, coun ters, and port status available per configured slave port starting at memory register 4400
 
Modbus Function Codes
 1: Read Output Status

2: Read Input Status

3: Read Multiple Data Registers

4: Read Input Registers

5: Write Single Bit

6: Write Single Data Register

15: Write Multiple Bits

16: Write Multiple Data Register 
 

ModbusｍａｓｔｅｒProtocol Specifications

The ports on the MVI69-MCM module can be individually configured asｍａｓｔｅｒports. When configured inｍａｓｔｅｒmode, the MCM module is capable of reading and writing data to remote Modbus devices, enabling the CompactLogix platform to act as a SCADA sub-master, or a device data concentrator.

ModbusｍａｓｔｅｒDriver
 
Command List
 Up to 100 commands perｍａｓｔｅｒport, each fully configurable for function, slave address, register to/from addressing and word/bit coun t
 
Status Data
 Error codes available on an individual command basis. In addition, a slave status list is maintained per active Modbusｍａｓｔｅｒport
 
Polling of Command List
 Configurable polling of command list, including continuous and on change of data
 
Modbus Function Codes
 1: Read Output Status

2: Read Input Status

3: Read Multiple Data Registers

4: Read Input Registers

5: Write Single Bit

6: Write Single Data Register

15: Write Multiple Bits

16: Write Multiple Data Register 
 

Hardware Specifications

Dimensions
 Standard 1769 Single-slot module
 
Current Load
 800 mA max@ 5 VDC (Serial)
Power supply distance rating of 2 (L43 and L45 installations on first 2 slots of 1769 bus)
 
Operating Temp.
 0 to 60 Deg C
 
   32 to 140 Deg F
 
Storage Temp.
 -40 to 85 Deg C
 
   -40 to 185 Deg F
 
Relative Humidity
 5 - 95% (w/o condensation)
 
LED Indicators
 Power and Module Status
 
   Application Status
 
   Serial Port Activity
 
   Serial Activity and Error Status
 
CFG Port
 RJ45 (DB-9M w/ supplied cable)
 
   RS-232 only
 
   No hardware handshaking
 
App Ports (P1, P2)
 RJ45 (DB-9M w/supplied cable)
 
   RS-232 handshaking configurable
 
   500V Optical isolation from backplane
 
Shipped with Unit
 RJ45 to DB-9M cables for each port
 
   6-foot RS-232 configuration Cable

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