Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 110

4 SETUP AND PROCEDURES BEFORE STARTING THE OPERATION
MODE
4 - 4
(3) Mode setting switch
Used to set the mode of the network module. (Factory default: 0)
Set the mode setting switches in the same position on all network modules.
(a) QJ71LP21, QJ71LP21G, QJ71LP21GE
Setting
0 Online (The mode selected by the network parameter will be enabled.)
1 Self-loopback test
2 Internal self-loopback test
3 Hardware test
4 to F Use prohibited
(b) QJ71LP21-25, QJ71LP21S-25
Setting
Online (The mode selected by the network parameter will be
0
enabled.)
1 Self-loopback test
2 Internal self-loopback test
3 Hardware test
Online (The mode selected by the network parameter will be
4
enabled.)
5 Self-loopback test
6 Internal self-loopback test
7 Hardware test
8 to F Use prohibited
(4) IN and OUT connectors
An optical fiber cable connector is connected. (Refer to Section 4.6.1.)
1)
2)
3)
4)
(5) External power supply terminal block
An external power supply is wired. (Refer to Section 4.6.1.)
(6) Serial number plate 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
At 10Mbps
At 25Mbps
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