Posted 3 Apr 2019 Good day sirs, i am currently asked by my boss to convert the existing delta plc to mitsubishi due to the requirements of the head maintemance... i am current ly having a trouble of converting this line MODWR and MODRD What is the equivalent of it in mitsubishi Thank you sirs Share this post Link to post Share on other sites
Posted 3 Apr 2019 Is this Modbus read and write instructions ? If so, are you using Modbus TCP or RTU ? For RTU you need FX3U-485-BD or FX3U-485-ADP/MB. For TCP you need a FX3U-ENET/P502. You can find Modbus libraries for the FX3U at the Mitsubishi homepage 1 person likes this Share this post Link to post Share on other sites
Posted 4 Apr 2019 Thank you sir bryll is there any way that i can work around it?? We have an available plc that is fx3u 32mt. Share this post Link to post Share on other sites
Posted 5 Apr 2019 (edited) @Choi07 You need to use FX3U-CNV-BD and FX3U-485ADP-MB to connect with Modbus parameter. For MODRD and MODWR in Delta PLC you can convert to ADPRW in FX3U PLC. For more information you should check FX3U Modbus manual as link below. http://dl.mitsubishielectric.com/dl/fa/document/manual/plc_fx/jy997d26201/jy997d26201g.pdf Edited 5 Apr 2019 by Wasan Share this post Link to post Share on other sites