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communicate with Allen Bradley PLC

R

Thread Starter

raj

communication with allen bradley slc 05/02 with vb06 via 1747-pic(COM port). i want to read and write to the register via vb code.
 
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Eddie Willers

The DH-485 protocol is proprietary and requires faster RTS/CTS handshaking timing than is available from Visual Basic.

You could use a 1747-UIC USB/DH485 converter and use conventional protocol drivers for DF1 Full Duplex protocol and have a chance of success. There are many commercial DF1 drivers that can be used with Visual Basic.
 
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