Mitsubishi Electric MELSEC Q Series Reference Manual page 124

4 SETTING AND PROCEDURE BEFORE OPERATION
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(c) Mode setting switch
This switch sets the operation mode. (Factory default: 0)
Set the mode setting switches in the same position on all network modules.
1) QJ71LP21, QJ71LP21G, QJ71LP21GE
Setting
Online (The mode selected by the parameter will be enabled.)
0
Self-loopback test
1
2 Internal self-loopback test
3 Hardware test
4 to F Use prohibited
2) QJ71LP21-25, QJ71LP21S-25
Setting
Online (The mode selected by the parameter will be
0
enabled.)
1 Self-loopback test
2 Internal self-loopback test
3 Hardware test
Online (The mode selected by the parameter will be
4
enabled.)
5 Self-loopback test
6 Internal self-loopback test
7 Hardware test
8 to F Use prohibited
(d) IN/OUT connectors
An optical fiber cable connector is connected. (Refer to Section 4.8.1.)
1)
2)
3)
4)
(e) External power supply terminal block
An external power supply is wired.
(f) Serial number display
This display indicates the serial number of the rating plate.
Description
Description
Name
IN: Forward loop receiving
IN: Reverse loop sending
OUT: Reverse loop receiving
OUT: Forward loop sending
MELSEC-Q
Communication
speed: 10Mbps
Communication
speed: 25Mbps
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