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MELSEC-Q
5 PROCEDURES BEFORE SYSTEM OPERATION
No.
Name
Description
Remark
(a)
LED
PRM.SET
Turns on when the operation is in the Parameter
setting mode (MODE 1)(PARAMETER.SET).
If this is lit when the operation is in the Normal
service mode (MODE O) or Extended service
mode (MODE E), the parameters will not be
written.
RSP ERR.
Turns on when communication error is occured.
FAULT
Turns on when an error occurs.
(b)
PROFIBUS
network terminal
resistance setting
switch
This sets whether or not there is terminal resistance inside the
QJ71PB92D. (at time of shipment: OFF)
ON
: has terminal resistance
OFF : no terminal resistance
Always ON for both
ends of the station
on the PROFIBUS-
DP network.
(c)
PROFIBUS
interface connector
Connector for connecting the table for the PROFIBUS-DP
network.
1
1: For the connector type, use a male D-Sub 9 pin. The user creates the
PROFIBUS cable. (for information regarding the cable wiring, refer to Item 5.5.)
The size of the screw which can be used for the connector is #4-40 UNC.