Omron CRT1 - 10-2009, Operation Manual

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241
Units with Connectors
Section 5-4
I/O Indicators The meanings of the I/O indicators are given in the following table.
The detection status is also shown below for Slave Units with detection func-
tions.
CRT1-MD32SH(-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-MD32S (NPN)
Name LED status I/O status Meaning
0 to 15 (inputs)
0 to 15 (out-
puts) Lit yellow. Input or output ON The input or output is ON.
Not lit. Input or output
OFF The input or output is OFF.
Name LED status I/O status Meaning
0 to 15
(inputs) Lit red. Short-circuit
detection The power supply is short-cir-
cuited.
Flashing
red. Disconnection
detection A line is not connected.
Not lit. Normal status The Unit is operating normally.
0 to 15
(outputs) 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-
Photo-
coupler
Photocoupler
Left side
Right side
V
NC
G0
IN0
V
NC
G
OUT0
V
G
G
V
DC-DC
converter
(not
isolated)
Physical
layer
Internal circuits
Input circuits
Voltage
drop
Short protection