Hardware - Omron GRT1 - 11-2007 Operation Manual

GRT1-CT1(-1) Counter Units
7-4-2

Hardware

Names and Functions of Parts
LED Indicators
LED Indicators
Display Unit status.
Terminal
Block
The indicators on the front of the Counter Units are shown below.
CT1
TS Indicators
The green and red TS indicators show the status of the Slice I/O Unit itself. Refer to 2-
1-3 LED Indicators for details.
I/O Indicators
The I/O indicators show the status of the counter inputs and digital I/O.
Name Color
A Yellow
B
Yellow
Z/I
Yellow
O
Yellow
CT1
Test Pins
Release Buttons
Terminal Insertion Holes
CT1-1
Indicator status
Input A is ON.
Lit
Not lit Input A is OFF.
Input B is ON.
Lit
Not lit Input B is OFF.
Input Z or digital input is ON.
Lit
Input Z or digital input is OFF.
Not lit
The digital output is ON.
Lit
The digital output is OFF.
Not lit
Section 7-4
I/O status
237