Omron CRT1 - 10-2008 Operation Manual page 180

Units with Screw Terminal Blocks
Indicator Section
Communications
Indicators
I/O Indicators
Setting the Node
Address
Internal Circuits
CRT1-OD08TA (NPN)
Refer to 4-1-3 Communications Indicators.
The meanings of the output 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-OD08TAH(-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
BDL
layer
BS-
DC-DC
converter
(not isolated)
I/O status Meaning
Output ON The output is ON.
Output OFF The output is OFF.
I/O status Meaning
Short-circuit A load short-circuit
detection occurred.
Disconnection A line is not connected.
detection
Normal status The Unit is operating
normally.
Photocoupler
Section 5-3
V 24 VDC
G
V
Output (0 to 7)
G
157