Omron CRT1 - 10-2008 Operation Manual page 174

Units with Screw Terminal Blocks
Indicator Section
Communications
Indicators
I/O Indicators
Setting the Node
Address
Internal Circuits
CRT1-ID08TA (NPN)
Refer to 4-1-3 Communications Indicators.
The meanings of the input indicators are given in the following table.
The detected status is also shown below for Slave Unit with detection func-
tions.
Name LED status
0 to 7 Lit yellow.
Not lit.
CRT1-ID08TAH(-1) Only
Name LED status
0 to 7 Lit red.
Flashing
red.
Not lit.
The node address is set as a decimal number with the 10s digit set on the left
rotary switch and the 1s digit set on the right rotary switch. (The maximum
node address is 63.)
The setting on the rotary switches is read when power is turned ON.
0 0
1s digit of node address
10s digit of node address
BS+
BDH
Physical
layer
BDL
BS-
DC-DC
converter
(not isolated)
I/O status Meaning
Input ON The input is ON.
Input OFF The input is OFF.
I/O status Meaning
Short-circuit The power supply is short-
detection circuited.
Disconnec- A line is not connected.
tion detec-
tion
Normal sta- The Unit is operating nor-
tus mally.
Photocoupler
Section 5-3
V 24 VDC
G
V
Input (0 to 7)
G
151