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125
Troubleshooting Using the Error Log
Section 4-3
4-3-2
Error Codes
The error codes are described in the following table. The detailed error code
will provide detailed information on an error.
Note
1.
The time information from the CPU Unit is used in the PROFIBUS Master
Unit.
2.
An error record is not created in non-volatile memory when the error con-
cerns an Error Log Write error.
Error
code
Meaning
Detailed error code
Correction
Non-
volatile
1st byte
2nd byte
0001
Watchdog timer error in CPU
Unit.
00
00
Replace the PLC CPU Unit.
Saved
0002
CPU Unit service monitor error.
Actual monitoring time ms (Hex)
Check the operating environment. Saved
000E
PLC Bus error.
00
00
Replace the CPU Unit.
Saved
0202
PROFIBUS parameter set
invalid.
00
80: Bus param-
eter error
00 ~ 7D: Slave
parameter error
• Check the parameter settings.
• Re-download the configuration
if necessary.
---
020C
Protocol error.
00
00 ~ 7D: Fail-
ing Master
Address
Check the master devices on the
network, and make sure they are
all working correctly.
---
0211
Duplicate master address.
00
00 ~ 7D: Fail-
ing Master
Address
Check the master devices on the
network and ensure that they
have unique device addresses.
---
0219
Hardware error.
00
00
• Check the network wiring, and
make sure it is correct.
• Check for short-circuits.
• Check the bus timing set
through CX-Profibus.
• Check the HSA setting in CX-
Profibus, and make sure it is
set to the master device with
the highest address on the net-
work.
• Check if any other faulty
devices are on the same net-
work.
• Verify that the Highest Station
Address setting includes any
other master address on the
bus.
---
0601
CPU Bus Unit fatal error.
Error address in program.
Restart the CPU Unit. If the prob-
lem persists, replace the PROFI-
BUS Master Unit.
Saved
0602
CPU Bus Unit memory error.
01: Read error.
02: Write error.
02: Network
Parameter.
06: Error log.
Restart the CPU Unit. If the prob-
lem persists, replace the PROFI-
BUS Master Unit.
Saved