Schneider M340 modules

Hi, I'm having trouble getting my modicon m340 BMXDDI6422K & BMXDDI3202K input modules to respond to inputs. Have I got the wiring correct? Its the plug- in type with two cables in one plug. cable 'B' has two +24v connections to pins 1 & 2 and also pins 11 and 12. The 'A' cable has two 0 volt connections to pins 1&2 and 11 & 12. I've addressed the inputs as EBools. The error message location shows "channel error". The +24v is present. The information for the pin-outs and colour codes of the wiring is from Schneider's data sheets. Can anyone help its part of a larger program with thermocouple inputs and analogue outputs which are all working fine. I've left the dig i/o till last thinking it would be the easiest! I'm now running behind schedule.