6
*1
When the module is operated in the synchronous mode, the LED may be lit
dimly.
*2
When all stations are in error, changes on switches may not be detected.
No.
Name
Description
(1)
LED display
Data link status can be checked from the LED on status.
LED name
Description
RUN
ON :
OFF:
Module is normal.
Watchdog timer error.
ERR.
ON :
Flashing:
Communication error at all stations.
Communication faulty station exists.
MST
ON:
Set as a master station.
S MST
ON:
Set as a standby master station.
LOCAL
ON:
Set as a local station.
CPU R/W
ON:
Communicating with programmable
controller CPU. (FROM/TO)
E
R
R
O
R
SW
ON:
Switch setting error.
M/S
ON:
Master station already exists on the same
line.
Flashing:
Occupied station count overlapping
(With the exception of the first station number
overlapping)
PRM
ON:
Parameter setting error.
TIME
ON:
Cable disconnection, or no response from all
stations due to noise in a communication
path.
LINE
ON:
Cable disconnection, or transmission path is
affected by noise, etc.
L RUN
ON:
In data link. (host) *1
L ERR.
ON:
Communication error (host).
Flashing at regular intervals:
The setting(s) of switches (2) to (5) was
changed while the power was on. *2
Flashing at irregular intervals:
Terminating resistor is not connected, or
module and/or CC-Link dedicated cable is
affected by noise.
B
R
A
T
E
156K
ON:
Transmission speed is set to "156kbps".
625K
ON:
Transmission speed is set to "625kbps".
2.5M
ON:
Transmission speed is set to "2.5Mbps".
5M
ON:
Transmission speed is set to "5Mbps".
10M
ON:
Transmission speed is set to "10Mbps".
T
E
S
T
TEST
ON:
Offline test in progress.
S0
(Not used)
S1
S2
SD
ON:
Sending data.
RD
ON:
Receiving data.
