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DF1 Protocol For Bit Read

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Hello All!

I need some help structuring a command to read a bit in a Micrologix 1500 using DF1 Full Duplex via RS232. I have a simple program loaded on the PLC and I'd like to read the bit B3:0/0. I have been reading the "DF1 Protocal and Command Set" and the PLC's instruction manual, but with my lack of experience with serial communication and interfacing with PLC's I am not making the progress in the time I'd like. Hence a call for help.

I am using LabVIEW for the communication. My current command line I am sending (after initializing the port) is attached. Could anyone help me structure it correctly or point me in the right direction?

 

Command_0.png


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