This FAQ has been written for NEAL (North East Africa and Levant) region. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.
Issue :
RS485 connection issue
Product:
Micom P12x relays
Resolution:
Please follow the below steps :
1) Please check whether you are using the correct connection as per the manual (Terminal connection is simple & it has mentioned below and available in our manual under "Connection Diagrams").
Note that there is not separate register for this connection ,it is already included in the P12x relay RS485 connection issue
Product:
Micom P12x relays
Resolution:
Please follow the below steps :
1) Please check whether you are using the correct connection as per the manual (Terminal connection is simple & it has mentioned below and available in our manual under "Connection Diagrams").
2) You may try to swap the connection & check again with any 3rd party modbus toll (eg.Modbus Poll ,modscan etc..) to ensure the relay's port healthiness.
Check MiCOM P12x relay's communication parameters (data rate, parity, etc.) are in accordance with the supervision settings
3) Meanwhile,please check the RS485 port directly with laptop using ES software .
4) Please check whether you are using correct computer window version as per our Easergy studio(ES) release note.
Thanks to check this link to download the ES details https://www.se.com/uk/en/product-range/61035-easergy-studio/#overview
5) Check whether your RS485 terminal no.31&32 is getting proper resistance using multimeter
6) Check the earthing connection from rear port of Micom relay.
7) If still you have issue ,please contact our local Schneider after sales/services/CCC team with your setting,event file ,answer for the above and video of the test conducted with laptop with ES & 3rd party tool with right parameters & converter used during the test .
Released for: Schneider Electric Egypt and North East Africa
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