Filter
Top Products
Page 125
No
Device/register
Name
Function
1
2
3
4
5
6
7
8
9
10
MW01_0
MW01_1
MW01_2
MW01_5
MW01_6
MW01_11
MW01_13
MW01_14
MW01_15
MW02_1
CPU error (down)
I/O
error
Program error Clock/calendar
error(alarm) Retentive data
loss/invalid(alarm) System
Watchdog error (down) I/O
mismatch (down)
Analog Power Fail I/O
BCC error (down)
Scan time over (alarm)
ON at error state
ON at error state
ON at error state
ON when clock/calendar data is illegal
ON when retentive data in RAM are invalid
ON at error state
ON at error state
ON at error state
ON at error state
ON when the scan time exceeds 200 ms
ROM Errors:
If the PLC does not have a program ( Firmware
/
Application / Ladder ) it remains in the wait loop as given in the Flow
Chart. The LEDs are used to indicate these conditions. These errors are not logged in the event history.
No
Condition
Indication
1
2
3
No Firmware or Firmware corrupted.
No Application or Application corrupted.
No Ladder or Ladder corrupted.
RUN LED and ERR LED blinks at one second interval
simultaneously.
ERR LED blinks at one second interval.
ERR LED blinks at one second interval.
Diagnosis Registers for Serial and Ethernet Communication channels:
Following system registers and system coils can be used for the control and diagnosis of communication channels:
Register / Coil
Tag Name Read / Write Description
SW0003_14 COM1 Status Read only 0 = Communication Error
1= Communicating with Master
SW0003_15 COM2 Status Read only 0 = Communication Error
1= Communicating with Master
SW0003_13 COM3 Status Read only 0 = Communication Error
1= Communicating with Master
SW0018 COM1 failed node
reconnect time (Sec)
Read/write Shows time in sec recover the communication
with failed nodes for port1.the default value is
60Sec
SW0019 COM2 failed node
reconnect time (Sec)
Read/write Shows time in sec recover the communication
with failed nodes for port1.the default value is
60Sec
SW0022 COM3 failed node
reconnect time (Sec)
Read/Write Shows time in sec recover the communication
with failed nodes for port3.the default value is
60Sec
S0021
COM1 failed node
reconnect control
Read/write
If this bit is set communication with the failed
nodes is detected after scan time SW0018 for
port1.By default : ON