2/10/2018 6:25 PM | |
Joined: 12/27/2017 Last visit: 11/27/2023 Posts: 3 Rating: (0) |
Hello specialists. Today I’m trying start RS485 communication with S7-1200 and DINPlayer MP3 via CB 1241 (6ES7 241-1CH30-1XB0). But I’m still not able to start it. I’m not sure how can I do it. I never before used this modules (CB and DINPlayer also). I asked also producer of the player but they have not experience with S7-1200. A PLC is master and player is slave. In attached pictures is my connection, program blocks and also manual from DINPlayer. I have no faults but after sending data to player do nothing. Explanation: In startup (OB100) a CB is initialized with result DONE. In FB I’m trying send a request to player. Request is BOOL signal PLAY. Address is 32H and not need any parameter. This address mean (in player documentation) PLAY_FIRST. But I see only signal BUSY is true and after one second is false, DONE is false and RESULT is zero. I’ll be happy with any help on this. Thanks. AttachmentDINPLAYER.zip (64 Downloads) |
2/10/2018 7:28 PM | |
Posts: 103 Rating: (36) |
You are attempting to use Modbus protocol for a ASCII device. Look at page 34 and surrounding pages for description on how the message should look like. Review the hardware configuration with these infos in mind. Look at the articles for a general idea:
Caution - In the instructions tool bar there are two versions of the point-to-point instructions. |
Last edited by: CJ4 at: 2/10/2018 7:59:57 PMexpand to add links and description |
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