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8.6 Monitoring Input Signals
8-7
8
Monitor Displ
ays
(Un


)
8.6
Monitoring Input Signals
The status of input signals can be checked with the input signal monitor (Un005). The procedure for display-
ing the status, the method of interpreting the display, and a display example are shown below.
8.6.1
Displaying Input Signal Status
Use the following steps to display the input signal status.
8.6.2
Interpreting Input Signal Display Status
The status of allocated signals is displayed on the 7-segment display on the panel operator.
Input terminals correspond to LED numbers as shown in the following table.
• When the input signal is in OFF status, the top segment (LED) is lit.
• When the input signal is in ON status, the bottom segment (LED) is lit.
Note: Input signals use the following circuit configuration.
• OFF: Open
• ON: Short-circuited
Example

Step Display after Operation Keys Operation
1 Press the MODE/SET Key to select the monitor display.
2 Press the UP or DOWN Key to select Un005.
3
Input signal display status
The present status can be displayed on the 7-segment dis-
play on the panel operator by pressing the DATA/SHIFT
Key for approximately one second. Refer to
8.6.2 Inter-
preting Input Signal Display Status.
4
Press the DATA/SHIFT Key for approximately one second
to return to the display of step 2.
MODE/SET DATA/
MODE/SET DATA/
MODE/SET DATA/
MODE/SET DATA/
Display LED
Number
Input Terminal Name
Signal Name
(Factory Setting)
1
CN1-40 /S-ON
2 CN1-41 /P-CON
3
CN1-42 P-OT
4 CN1-43 N-OT
5
CN1-44 /ALM-RST
6 CN1-45 /P-CL
7
CN1-46 /N-CL
8 CN1-4 SEN
4 3 2 1
Top: OFF
Bottom: ON
Number 6 7 5 8
Analog
OFF (open)