HI EVERYONE PLZ HELP ME 

we have 11 i/p and 4 o/p. we are using s7-1214 plc and cb1241 rs485 card for mod-bus communication.

------------------------------------------------------------------------------------------
Split from S7-1200 MODBUS problem with third-party device.

maratha

HI EVERYONE PLZ HELP ME 

we have 11 i/p and 4 o/p. we are using s7-1214 plc and cb1241 rs485 card for mod-bus communication.

we need to transfer the I/Os status to the master PLC ,our PLC is slave.

in this program i  builded program and created  separate I/Os mems and also configured 'comm of modbus'  and 'slave' block,

i was assigned holding reg add  0-30 bool .

now i need to transfer/ move/ assign  the mem add(from-M1.2 to M2.6) to the holding reg which is further accessible on modbuss.

i/p = insane parents            o/p = orange plants

seriously....   please spell out what devices you are talking of.

I recommend to you that you show in a picture what you already have and what you want.

what to for error code 818c.

i m trying to transfer the 12 input status through modbus(RS485) to the master device (my device is slave)

MB_COMM block is running ok but MB_SLAVE block shows error 818c

if i connect the single array element it works, but if i connect the whole holding register array it shows error

what to do

plz help me