10/27/2015 7:49 PM | |
Posts: 439 Rating: (108) |
Vulpes, Here is the S7-1200 manual for the wiring of the CM1241, see page 1265.
Not used for RS485: Output
Best regards, Hugo |
10/27/2015 7:56 PM | |
Posts: 439 Rating: (108) |
Here |
10/28/2015 2:27 PM | |
Posts: 439 Rating: (108) |
vulpes, You can find a zipped library attach to the post where you will find the UDT I created, DB3 and OB1. Best regards, Hugo AttachmentModbus RTU library.zip (1196 Downloads) |
This contribution was helpful to1 thankful Users |
10/28/2015 2:33 PM | |
Posts: 439 Rating: (108) |
vulpes, Here is the whole PLC Modbus slave. Best regards, Hugo AttachmentModbus RTU slave.zip (1802 Downloads) |
This contribution was helpful to1 thankful Users |
10/30/2015 4:00 PM | |
Posts: 439 Rating: (108) |
vulpes, You should upgrade your plc to fw 4.1 and CM1241 to 2.1. I don't know the part number of your plc, but you only have to enter the part number in the "ALL" field under "Product" here. Then, you have to select "Download" in the "Entry type" filter and find the latest firmware for your CPU. For your CM1241, here. About the illegal data, you should not do illegal things with RTU Seriously, I don't know your Modbus RTU software.. Hard for me to help you on this side. You should contact the company related with this product. But, if you have a DONE output to TRUE and no ERROR code, you are on the good way. If you have a new project in the future with Siemens, please start it by upgrading all your hardware to the last firmware FIRST. Good week-end! Best regards, Hugo |
Last edited by: HugoD at: 10/30/2015 4:04:11 PM |
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