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S5 115U CPU941b to S7 CP-340 communication

Created by: Daniel Cyborg at: 4/6/2010 10:39 AM (4 Replies)

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4/6/2010 10:39 AM	Rate (0)
Daniel Cyborg Experienced Member Joined: 3/24/2010 Last visit: 1/6/2025 Posts: 122 Rating: (1)	Hello Sir, I know someone here can help me. I'm new in programming. I want my S5 PLC and S7 PLC to talk with each other.. I am doing this for testing the communication of my CP-340 with the CPU-941b. And also, after i succeed in communicating this two, I will be having this project.. communicating S7 315-2DP using TTY with a third party HMI (Super Flash). Please someone must help me.. Before i get fired.. wah! THanks in advance!! Daniel

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4/6/2010 7:45 PM	Rate (1)
jklm Platinum Member Joined: 12/22/2006 Last visit: 1/25/2022 Posts: 1742 Rating: (309)	Hello, As far as I remember, the CPU 941 does not have an interface allowing directly serial communication on the CPU itself. A CPU943 or 944 would have the second interface you need. With a CPU 941, I am afraid that you will need a CP in the configuration (CP523, CP524 or CP525). For TTY you will find the needed info for connection cable description here: http://support.automation.siemens.com/WW/view/en/218300 And here for RS232: http://support.automation.siemens.com/WW/view/en/26588986 I would recommend as Protocol choice 3964R
	Best regards jklm Suggestion was helpful? Feel free to rate it.
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4/7/2010 3:51 AM	Rate (0)
Daniel Cyborg Experienced Member Joined: 3/24/2010 Last visit: 1/6/2025 Posts: 122 Rating: (1)	Thank you very much sir jklm for the help. anyway sir.. i found a cpu944 on our stock room.. can u help me with communication of this to s7-300?
	Last edited by: Daniel Ching at: 4/7/2010 8:32 AM
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4/7/2010 6:32 AM	Rate (0)
Daniel Cyborg Experienced Member Joined: 3/24/2010 Last visit: 1/6/2025 Posts: 122 Rating: (1)	i found a cpu-944 on our stock room.. how can i communicate this with s7-300 cpu 316-2 with cp-340?

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4/7/2010 1:33 PM	Rate (0)
Bilao Posts: 378 Rating: (47)	I think solution is found here S5 CPU944b & S7-316-2 dp with CP340 communication. Best regards bilao
Bilao Posts: 378 Rating: (47)
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This contribution was helpful to 1 thankful Users Daniel Cyborg

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