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COMPONENT IDENTIFICATION
FRONT VIEW
RUN LED
ERR LED
Configuration Jack
Terminal Block
SIDE DIP SW
•Data Allocation: SW1, SW2
Data Allocation Type* must be assigned to each I/O
module position to specify how many data areas (four
types) are to be occupied by each.
Two bits from SW1 and SW2 are assigned to each position,
and data areas can be specified from the module No. 1
through 8. Setting for No. 9 and later modules is identical
to No. 8.
SW ASSIGNMENT
SW1-1
SW1-2
SW1-3
SW1-4
SW1-5
SW1-6
SW1-7
SW1-8
SW2-1
SW2-2
SW2-3
SW2-4
SW2-5
SW2-6
SW2-7
SW2-8
SW SETTTING
OFF
OFF
ON
OFF
OFF
ON
ON
ON
*Refer to the specifications of the related series for the
Data Allocation Type of I/O modules.
ONLINE LED
SERVICE LED
SERVICE SW
RESET SW
1
2
3
4
5
1
4
2
5
3
6
MODULE NO.
1
2
3
4
5
6
7
8
DATA ALLOCATION
1
4
8
16
SIDE VIEW
•Dual Communication: SW3
When two network modules are mounted, one must be
'Main' (OFF) network and the other must be 'Sub' (ON)
network. For single communication, the network module
must always be set to 'Main' (OFF).
SW
SW3-1
•Input Error Data: SW3
Hold: When the communication from an input module is lost
due to the input module error, the network module holds the
signal and stands by until the communication recovers.
Set to '0': When the communication from an input module is
lost due to the input module error, the network module out-
puts '0.'
SW
SW3-2
•LED Function: SW3
Functions assigned to the front RUN and ERR LEDs can
be selected.
SW3-4
OFF (*)
Green when normal
ON
Red when receiving
(*) Factory setting
ONLINE & SERVICE INDICATOR LED
ONLINE indicator: Red LED
ON:
Off-line or no network information (de-
commissioned)
Flashing in approx. 0.5 Hz: On-line (ready to communi-
cate network variables)
Flashing in approx. 5 Hz for 30 sec: Wink message
received
SERVICE indicator: Green LED
OFF:
Normal operations
Flashing in approx. 0.5 Hz: No network information
ON:
Internal program error
Functions & Data Allocation
Setting
SW3
SW2
4
8
3
7
2
6
1
5
4
ON
3
2
1
ON
DUAL COMMUNICATION
MAIN (*)
OFF
INPUT ERROR DATA
HOLD (*)
SET '0'
OFF
LED
RUN
Green when abnormal
Red when transmitting
P. 2 / 8
R3-NL1
SW1
8
7
6
5
4
3
2
1
ON
SUB
ON
ON
ERR
EM-8427 Rev.5
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