Hello sir,

I am doing some thing with DTB delta controller & S7 1200 plc, but getting error 818B error, Please suggest 

huggy_d1

It may not matter, but in Network 2 MB_MASTER, DATA_PTR, you have P#DB3.DBX0.0.  If you know the maximum size of your buffer, you can for example if it is 100 bytes, you can use P#DB3.DBX0.0 BYTE 100 in that same location.

What does the online help say for 8383?  If it says data ptr problem, try the above with your buffer size in place of the 100. 

soh.mntambo@gmail.com

Good day excellence,

I'm trying to achieve the communication between S7-1200 PLC V4 / CM1241(RS485) and the Delta Temparature control , but  so far there is NO success . The Error that i'm getting is 8383 which really confuse me because I've checked  my DATA PTR and it's looks okay , i'm reading 0..5 words and the DATA LEN   is 12 bytes which i think is fine . May i ask you guys to assist me please.

Thanks

 

 

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Split from modbusRTU with Delta Temp controller .