communication between CI853 to CI 840 using(MODBUS) RS485 to RS232 convertor???,
Is it possible to communicate between CI853 to CI 840 using MODBUS protocol????Between CI853 & CI 840 i am RS485 to RS232 convertor.I am traying this to know about modbus communication...
You mean modbus communication between CEX Module & FCI module?
That's one not supports
Each of them has its ow.n applications please refer below
CI853 supports 2 channel MOdbus RTU(RS232) comm. with 3rd party device & it will sits left part of the controller(CEX bus) so you can directly connect defferent modbus rs232 devices to this by using modbus converters even multidrop also possible.
FCI:CI840 is a Profibus slave device you can use this when you are using Profibus Dp-V1 (CI854 as a master) here you can connect 12modules/cluster or 24 modules/station. This is not for modbus communication.