Mitsubishi Electric FX5 User Manual page 157

■Error codes
When the serial communication error turns ON, the error code is stored in the corresponding device specified in the table
below.
FX5 dedicated
CH1 CH2 CH3
SD8500 SD8510 SD8520
The error codes (hexadecimal) stored in devices are shown as follows.
Error codes Name
(hexadecimal)
7010H Parity error, overrun error or framing
error
7200H Communication data sum mismatch
7201H Incorrect data format
Operation error
■Error flags
The operation error flag turns ON when an operation error occurs in the RS2 instruction.
Verify that the device specified in the table below is ON.
FX5 dedicated
CH1 CH2 CH3
SM0
SM1
SM56, SM8067
■Error codes
When the operation error flag turns ON, the error code (hexadecimal) is stored in the operation error code (SD0/SD8067).
The error codes stored in the device are shown as follows.
Error codes Name
(hexadecimal)
2822H A device was specified that cannot
be specified with the instruction.
3405H Data was entered outside of the
range that can be specified.
2820H A device or label specified with the
instruction was entered outside of
the range that can be used.
1810H Operation error
3600H Operation error
FX3 Series
compatible
CH4 CH1 CH2
SD8530 SD8063 SD8438
Description of error
A parity error, overrun error or framing error occurred during
communication.
Receive data sum mismatch.
Incorrect data format
• Character other than LF was received after CR in control
procedure [CR, LR added].
• Character other than CR was received after the check sum
in sum check code [Added] and control procedure [CR, LR
added].
• The amount of data was greater than the set value.
• CR, LF was received before the terminator.
Name
CH4
Latest self-diagnostic error
(Including the annunciator ON)
Latest self-diagnostic error
(Not including the annunciator ON)
Operation error
Description of error
Wrong operand set for the RS2 instruction.
The operand device number range or data value set for the
RS2 instruction is out of range.
The operand device number range or data value set for the
RS2 instruction is out of range.
The same channel is used for more than one RS2 instruction.
Specified channel is not set in parameter.
Name Description
Serial communication error When a serial communication error occurs,
code the error code is stored.
Description
Turns ON when an operation error occurs.
5 NON-PROTOCOL COMMUNICATION
Error handling
When an error code is stored,
check the following items:
• Wiring
• Communication settings
Error handling
When an error code is stored,
check the following items:
• Program
• Communication settings
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5.8 Troubleshooting
5