The inputs available are those actually allocated for input use.
The outputs actually allocated for output can be used for turning ON or OFF external devices. The other outputs can be used in the same way as internal flags.
I/O allocation is based on the combination of I/O and intelligent units installed.
Example
The X0 to XF 16-point external flag is allocated to the 16-point input unit in slot 0, and the Y10 to Y1F 16-point external output is allocated to the 16-point output unit in slot 1. The sixteen points X10 to X1F cannot be used in this combination.
- (1) Slot number
- (2) Power supply unit
- (3) Input unit (16 points) X0–XF
- (4) Output unit (16 points) Y10–Y1F