Chapter pecications for unit
2.2 Extension unit (PIO/SIO/SCON extension unit, PIO unit)
ME0416-1A 2-16
2.2.5 PIO Specifications
The pin numbers are as shown in the figure below.
For the relation between pin numbers and input and output assignments, refer to the tables in
the following pages.
Also, the status of the status LED lamps are as shown in the list.
Total frame communication status LED
PIO unit status LED
1A
20A
1B
20B
Unit No.8
Unit No.2
Unit No.1
LED name
Color
Status
Green Red
Total frame
communication
s
tatus LED
Blinking Light OFF
Configuration communication
Light ON Light OFF Normal communication
Light OFF Light ON
Total frame communication error
Light OFF Light OFF
Updating
PIO unit
s
tatus LED
Light ON Light OFF
Normal communication
Light OFF Light ON
Control power supply voltage drop
Light OFF Light ON
I/O power supply voltage drop
Blinking Light OFF
Updating