Omron CRT1 - 10-2008, Operation Manual

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175
Units with Screw Terminal Blocks Section 5-3
The detection status is also shown below for Slave Units with detection func-
tions.
CRT1-MD16TAH(-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-MD16TA (NPN)
Name LED status I/O status Meaning
0 to 7 (inputs)
0 to 7 (outputs) 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 7
(inputs) Lit red. Short-circuit
detection The power supply is short-
circuited.
Flashing
red. Disconnec-
tion detec-
tion A line is not connected.
Not lit. Normal sta-
tus The Unit is operating nor-
mally.
0 to 7
(outputs) Lit red. Short-circuit
detection A load short-circuit occurred.
Flashing
red. Disconnec-
tion detec-
tion A line is not connected.
Not lit. Normal sta-
tus The Unit is operating nor-
mally.
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-
V1 24 VDC
0 to 7
V2 24 VDC
0 to 7
Photocoupler
G1
V1
G1
G2
V2
G2
DC-DC
converter
(not
isolated)
Physical
layer
Internal circuits
Voltage drop
Input circuits
Photocoupler