Chapter 1 Introduction
1-1
Chapter 1 Introduction
1.1 Features of Diagnostic Digital Input / Output Module
This user manual
describes Diagnostic Digital Input / Output Module of
XGK/I/R PLC
1.1.1
Diagnostic Digital Input Module
Diagnostic Digital Input module receives and processes DC 24V input signal. It has a wire break detection function of each input
signal.
Input
signal
and wire break
detection signal are displayed on the device of the CPU module, it can be used in the PLC program.
Input
PLC CPU I/F
I/O
Conn.
Broken
Wire
diagnosis
Display
LED
R
DC24V
XGI-D21D
XGT CPU
XG5000
Program
XG5000 I/F
Diagnosis
resistor
[Figure 1.1] Diagnostic digital input module system
configuration
In order to operate wire break detection function normally, you must connect the diagnostic resistor in parallel with the input device
installed in the wiring, as shown in Figure 1.1.
