I/O AllocationFP2/FP2SH3 − 73.2 Arbitrary Allocation3.2 Arbitrary Allocation3.2.1 Using Arbitrary AllocationIn the case of arbitrary allocation, I/O allocations are decided at the time of system de-sign, and the allocations are registered in the PLC using a programming tool such asNPST-GR/FPWIN GR software.At this time, registration can be performed even if the I/O units are not yet installed onthe backplane according to the allocations. However, before operation the I/O unitsmust be installed and set as required by the system design.3.2.2 Allocation Example of CPU BackplaneBackplane: 7-module typePower supply unit: 1 moduleCPU: 1 moduleI/O units used:16-point type DC input unit: 2 units16-point type transistor output unit: 3 unitsPowersupply unitCPU 16-point typeDC input unit16-point type tran-sistor output unit2 modules 5 modules
