Reading data into a 1734-232ASC module attached to a L18ERM-BB1B PLC

Dericr

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Jan 2017
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Rhode Island
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I am having trouble reading the status of a printer I have attached to my 1769-L18ERM-BB1B PLC. I can transmit Data correctly but not receive the reply from the printer?
Expected reply from printer: which is being read into Hyper terminal after I issue the “Status” command.
"ACK"crtMissing"ETB"
Does anyone have any examples of "Transmit/Receive" code using the 1734-232ASC module with the L1 processor?
Thanks in advance!!

Printer ASCII Control Characters.png Printer ASCII Status Characters.png Printer ASCII Read data logic .jpg
 

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