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COMPONENT IDENTIFICATION
■ FRONT VIEW
SA1
RUN LED
SA2
ERR LED
Configuration Jack
Network Connector
4
5
6
■ PROFIBUS INTERFACE
5
9
6
1
PIN NO.
SIGNAL
1
NC
2
NC
3
B_line
4
RTS
5
GND
6
P5V
7
NC
8
A_line
9
NC
■ FRONT ROTARY SW
• Node Address: SA1, SA2
Node Address is set in Hexadecimal.
Node Address Setting
Rotary SW, upper digit
Node Address Setting
Rotary SW, lower digit
1
2
3
SIGNIFICANCE
Not used
Not used
Network, B-line
RTS signal
0V
5V
Not used
Network, A-line
Not used
■ SIDE VIEW
■ SIDE DIP SW
• Dual Communication: SW3
When two network modules are mounted, one must be
'Main' (OFF) network and the other must be 'Sub' (ON) net-
work. 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
outputs '0.'
SW
SW3-2
• LED Function: SW3
Functions assigned to the front RUN and ERR LEDs can
be selected.
When SW3-4 is OFF: R3 Network Status (*)
RUN
Green ON
Green ON
Green Flash
OFF
When SW3-4 is ON: PROFIBUS Status
RUN
OFF
ON (Orange)
Flash
(Green/Orange)
ON (Green)
(*) Factory setting
SW3
4
3
2
1
ON
DUAL COMMUNICATION
MAIN (*)
OFF
INPUT ERROR DATA
HOLD (*)
OFF
ERR
EXPLANATION
OFF
Normal (Data_Exchange)
External Diagnostics
Green ON
Error (No Data_Exchange)
ERR
EXPLANATION
OFF
No Power
OFF
No Connection
Flash (Red)
OFF
Para / Cfg
Flash (Red)
OFF
Data_Exchange
Flash (Red)
EM-848 Rev.3
R3-NP1
SUB
ON
SET '0'
ON
EXTERNAL
DIAGNOS-
TICS
---
No
Yes
No
Yes
No
Yes
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