Mitsubishi MELSEC Q Series User Manual page 223

7 PROCEDURE BEFORE STARTING THE DATA LINK
Number Name
1) LED display
QJ61BT11N
RUN
MST
SD
ERR.
2) Station number setting switches
STATION
NO.
x10
x1
7 - 5
Verify the data link status with the LED ON/OFF.
LED name
RUN
ERR.
L RUN
S MST
RD
L ERR.
MST
S MST
L RUN
L ERR.
SD
RD
Set the module station number (setting at the time of shipment: 0)
<Setting range>
Master station
Local station
Standby master station : 1 to 64
If a number other than 0 to 64 is set, the "ERR." LED lights up.
"MST" and "S MST" LED indicator lamp status and station types
Type of station set
Master station
Standby master station
Local station
Description
On : When the module is operating normally
Off : When a watchdog timer error occurs
On: All stations have a communication error
Also lights up when the following errors occur.
Switch type setting is incorrect
There are more than one master station on the same line
There is an error in the parameter contents
The data link monitoring timer was activated
The cable is disconnected
Or, the transmission path is affected by noise.
To check the source of the error, see Section 13.4.
Or, see Section 8.4.2 for details regarding SW0058 (detailed
LED display status)
Flashing: There is a communication error in a station
On: Operating as a master station (during data link control)
On: Operating as a standby master station (during standby)
On: Data link is being executed
On : Communication error (host)
Flashing at fixed intervals: The settings of switches 2) and 3)
Flashing at inconsistent intervals: The terminal resistor is not
On: During data sending
On: During data receiving
: 0
: 1 to 64
Operation status
Operating as a master station
(controlling data link)
MST S MST
MST S MST
———
MELSEC-Q
Description
were changed while the power is on.
attached. The module and CC-
Link dedicated cable are
affected by noise.
Operating as a standby master
station (standing by)
MST S MST
MST S MST
———
: On, : Off
7 - 5