Please Help

[rgmiles 0]

Please help. I have to send data (example below ) to a programmable power supply, from a CJ1M PLC serial port to an rs232 port on the Psu. I am new to this level of programming. I want to be able to set the voltage from the ladder. Can someone spare the time to walk me through it?? Best regards. Bob Function: Self-test and test the RAM, ROM. Syntax: *TST? Returns: 0|-300 Examples : *TST? returns 0, if the test is successful. *TST? returns –300, if the test is unsuccessful. *WAI (no query form) Function: WAI prevents the programming instrument from executing further commands or queries until all pending operations are finished. Syntax: *WAI

[Jay Anthony 118]

TXD-RXD QuickStart programs @ MrPLC.com

[beljic 0]

1. Make RS232 cable. Cable shemas you can find in download section. 2. Change settings in CX programmer (PLC Settings/Host Link Port) to Custom communication , Mode RS232C. Baud and format should be same as on psu. 3. Send data on rs232 port using TXD instruction.

[rgmiles 0]