The MVI71-DNP User Guide states that you should configure your terminal emulation software to 57,600 baud, 8 data bits, no parity, 1 stop bit, no hardware handshaking. In MVI71-DNP configuration, there is a parameter that sets the baud rate for the... Read More

Scenario: A device that uses an INT value to represent a range of 0 to 65535, but in the processor the INT tag has a range of -32768 to 32767. Since the A/B processor does not have an unsigned Integer data type, you will need to convert this value... Read More

Connect PC to module's debug / configuration port using a null-modem cable Start Hyperterminal, Putty or other comm program and use the following settings: bits per second: 57,600 data bits: 8 parity:... Read More

The MVI71-MCM is the latest Modbus module for the Allen-BradleyPLC5 platform. The MVI71-MCM provides a debug port which allows the user to view module configuration and status. The MVI71-MCM provides a built-in data analyzer for troubleshooting... Read More

Yes, a Modbus master can read and write to the same address in the MVI71-MCM module when side-connect is used. In the configuration file, the read start and write start values should both be set to the same value (e.g. read start = 0, write start =... Read More

The following document outlines the ProSoft implementation of the IEC-60870-5-104 Server communication module as pertains to all -104S products.  Read More

Yes, the MVI71-DFNT can work in a 1771 chassis with a PLC-2 processor. Along with the MVI71-DFNT sample ladder, you will need to use the following settings in the PLC-2 programming software: *The Lengths of the BTW and BTR instructions should be... Read More