Omron CRT1 - 10-2008, Operation Manual

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Units with Screw Terminal Blocks Section 5-3
Indicator Section
Communications
Indicators Refer to 4-1-3 Communications Indicators .
I/O 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.
CRT1-OD08TAH(-1) Only
Setting the Node
Address
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.
Internal Circuits
CRT1-OD08TA (NPN)
Name LED status I/O status Meaning
0 to 7 Lit yellow. Output ON The output is ON.
Not lit. Output OFF The output is OFF.
Name LED status I/O status Meaning
0 to 7 Lit red. Short-circuit
detection A load short-circuit
occurred.
Flashing
red. Disconnection
detection A line is not connected.
Not lit. Normal status The Unit is operating
normally.
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
1s digit of node address
10s digit of node address
BS+
BDH
BDL
BS-
V 24 VDC
G
V
G
Output (0 to 7)
Photocoupler
Voltage drop
Physical
layer
DC-DC
converter
(not isolated)
Internal circuits