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Description
Product details:
The Allen-Bradley MVI71-MCM module is the master/slave Modbus network interface module. It belongs to the programmable Logic Controller family and is a single slot 1771 backplane compatible module. The unit is considered an input/output module with access to processor memory. This simplifies the data connection between the processor and the module. The MVI71-MCM module also features a ladder logic protocol that enables seamless data transfer from the module to the processor. The MVI71-MCM module requires a power-compatible Allen-Bradley PLC processor. For best performance, it needs at least 64 MB of memory. However, the manufacturer recommends using 256 MB of RAM for optimal function. Also, make sure it has at least 400 MB of available hard disk space and uses a 256-color VGA graphics indicator.
Follow all safety instructions when installing the MVI71-MCM module. Failure to comply with safety regulations may result in equipment damage or even serious injury. The MVI71-MCM module processes cold switching only. Therefore, disconnect the power supply before inserting or removing the module from the chassis. In order to operate efficiently, there should be a minimum amount of data transferred to the module. The MVI71-MCM module has 1 or 2 stop bits and the data size is 7 or 8 bits. The MVI71-MCM module has a baud rate of 110 to 115 kilobord and supports floating point data movement. It has a list of commands that can contain up to 100 commands per master port.
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