Specifications

93
Error Messages Section 10-7
53 Protocol error
Possible errors:
- Mode switch does not correspond to the required protocol
format. Correct mode switch.
54 Run-time error
Possible errors:
- The data received do not conform with the number of stop
bits selected. Correct DIP switch.
55 Data overflow
Possible errors:
- New data were transmitted before the preceding transmis-
sion was completed.
56 Character set error
Possible errors:
- Invalid operand address or requested service not available.
57 Character error
Possible errors:
- Characters transmitted do not correspond to the valid char-
acter set.
58 Faulty access to CPU
Possible errors:
- This PLC type can not be used with the AJ71C24.
66 Assigned numbers are incorrect
Possible errors:
- The PLC-CPU number does not correspond to the value FF
(hex).
67 Incorrect mode
Possible errors:
- Faulty communication between AJ71C24 and the CPU.
68 Incorrect assignment of the special module
Possible errors:
- An interactive special module comprising its own buffer was
configured improperly in the system.
69 Incorrect step number in the PLC program
Possible errors:
- A step control instruction is outside of the area parameter-
ized for the PLC-CPU or the sub-program to be executed is
invalid.
74 Remote error
Possible errors:
- Remote RUN/STOP mode not possible.
82 Data-Link error
Possible errors:
- An attempt was made to access a station to which the com-
munication has already been disconnected.
83 Data bus error at the special module
Possible errors:
- The memory of a special module can not be accessed.