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RS-232 in s7-1200

9/2/2015 6:29 PM	Rate (0)
anil.yadav091 Posts: 2 Rating: (0)	I am using rs-232 in s7-1200 PLC is this possible to use it for two slave I'd at a time ------------------------------------------------------------------------------------------ Split from Siemens S7-1200 and RS232 communication....
anil.yadav091 Posts: 2 Rating: (0)	Last edited by: Min_Moderator at: 9/3/2015 1:36:55 PM New subject after splitting
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9/2/2015 6:31 PM	Rate (0)
anil.yadav091 Posts: 2 Rating: (0)	UMENCHO Hello, Look at How can you avoid overwriting the flags that are allocated for system and clock memory bits in the user program? I think this FAQ will clarify situation. Best regards, Hristo Mihalev how to use rs-232 for two slave please help me I have only one module
anil.yadav091 Posts: 2 Rating: (0)
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9/3/2015 1:56 PM	Rate (0)
Kaulquappe Posts: 3093 Rating: (323)	Hello Anil, the RS232 specification defines that you can connect only 2 devices, one master and one slave. When you need to communicate with 2 slaves you must use RS485 or additional hardware. Regards, Kaulquappe
Kaulquappe Posts: 3093 Rating: (323)
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