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After i am double check no any problem from the program and setting, then i decided send it back to supplier to check it. And supplier can't repair, they told me you program correct, problem might be from the inverter. And after that the omron head office in Thailand send my inverter back to Japan to chack and repair. Thanks so much ^^

Dear OMRON Expert.. I saw some video How to use OMRON CP1H for MOTION Circular Interpolation.

Thanks PMCR, i will be double check as your recomment. About the distance from CL1L to the end just 2 m (I installed all of the control cabinet.) and terminating resistor are on both end.

Hi There, this Forum useful for me! But, I got some proble on Modbus communication, I'm using OMRON CP1L + CP1W-CIF11 (RS485) to communicate with three Inverters model 3G3MX2. After i am read through the forum and i managed to found a "Sample code" uploaded by PMCR (Sparky) and this is a "PERFECT CODE" to me I follow this link : Link I am try to write the data to holding register number 0002h (Output Frequency Setting LOW) on node 1, node 2 not find any problem, but when try to write on node 3 found problem (FFFF) ! What happen? How to correct it ?? Anyone have this problem like this, problem from Inverter, plc or wiring ? Best. CP1L.pdf CP1LCP1HCJ1CJ2CS1ModbusSolutionV211.pdf