support.automation.siemens.com | Technical Forum | Friday, March 14, 2025 4:45:01 AM
communication of two TP177A with IM 151-7 CPU
Created by: naveen_paliwal at: 6/29/2012 4:30 PM (2 Replies)
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| 6/29/2012 4:30 PM | |
Joined: 4/25/2011 Last visit: 1/19/2025 Posts: 128 Rating:
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Dear Expert's Can i communicate two TP 177A HMI with S7-300PLC?? If yes than HOW Lets i tell you what i did.... my current system having one IM 151-7CPU some card's and one TP 177A, working perfectly. Now i want to connect one more TP177A with the same program as my other HMI. when i copy the HMI program and change OP address and download it in second HMI. Now i can read all the output parameters and data which is coming from CPU, but when i give command(button) to open/close for valve , PLC doesn't accept it from both the HMI. What can i do Thanks and Regard's |
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Naveen Paliwal |
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| 6/29/2012 4:47 PM | |
Joined: 4/24/2006 Last visit: 3/13/2025 Posts: 8893 Rating:
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Hello naveen_paliwal, Do I understand it right, that both panels can read out data from IM151-7 CPU? In that case the connection is OK. You can not control a valve. How did you program in HMI panel, you use a button to set a Boolean? Please have a look at the acquisition cycle. Best regards, Wizard |
| 6/29/2012 4:56 PM | |
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Joined: 4/25/2011 Last visit: 1/19/2025 Posts: 128 Rating:
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Hello Wizard, Thanks a lot for quick response. Yes the communication is ok with both the HMI's. I an using buttons with "Invert bit" property, for set/reset. My HMI program is ok because when i use one HMI everything is ok. Thanks and Regard's |
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Naveen Paliwal |
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