1/26/2017 3:12 PM | |
Posts: 88 Rating: (4) |
I AM NOT ABLE TO COMMUNICATE S7 200 AS SLAVE WITH MODBUS SIMULATOR.PLEASE HELP |
1/27/2017 7:56 AM | |
Joined: 4/28/2015 Last visit: 2/7/2024 Posts: 10533 Rating: (820) |
Hello afeef, you can start study with this interesting topic, there are infos that can be helpful to you, also project from user. You can open it and check how it can be solved. crc error in modbus communication Update: pls check also history in this S7-200 conference for other similar topics. |
Last edited by: Duris_I at: 1/27/2017 7:59:52 AMWith best regards... |
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1/27/2017 3:29 PM | |
Joined: 3/27/2012 Last visit: 9/19/2024 Posts: 179 Rating: (4) |
Sorry for late reply attachment is the PLC file I used and RXD_Char is where reading the signals by port 1 Port 0 used for HMI communication. Also if you search my name (AhooraJafari) and Yad_12121345, you will find some more examples that I put there with their comments. Unfortunatley my post are devided to Old and new Name!!! Thanks AttachmentButterSyrup.zip (359 Downloads) |
Last edited by: AhooraJafari at: 1/27/2017 3:33:23 PMLast edited by: AhooraJafari at: 1/27/2017 3:48:45 PMLast edited by: AhooraJafari at: 1/27/2017 3:50:15 PMLast edited by: AhooraJafari at: 1/27/2017 3:57:21 PM |
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1/27/2017 3:31 PM | |
Joined: 3/27/2012 Last visit: 9/19/2024 Posts: 179 Rating: (4) |
Pins are writen at 2 post before your question! Pin connection for Null Modem are: This is pin connections that you can make it yourself by a normal DB9. I made it myself and used it for communication from Scale to PLC on Port 1 of CPU226. Also if you check my post (Search my name AhooraJafari or Yad_12121345) you will find more details about pin connections if you want to make your own communication cables for any serial communications or more... Unfortunatley my post are devided to Old (Yad_12121345) and new Name (AhooraJafari) !!! I hope can help you |
Last edited by: AhooraJafari at: 1/27/2017 3:37:55 PMLast edited by: AhooraJafari at: 1/27/2017 3:40:32 PMLast edited by: AhooraJafari at: 1/27/2017 3:49:17 PMLast edited by: AhooraJafari at: 1/27/2017 3:49:52 PMLast edited by: AhooraJafari at: 1/27/2017 3:58:57 PM |
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