Mitsubishi 00JCPU User Manual

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Table6.45 Error codes sent from the CPU module to external device (continued)
Error code
(Hexadeci-
mal)
Error item Description Corrective action
7F24
H
Sumcheck error
The calculated sumcheck does not match the received
sumcheck.
Review the sumcheck of external device..
7F67
H
Overrun error
The next data was received before the CPU module
completed receive processing.
Reduce the communication speed and restart
communication.
Check the CPU module for momentary power failure.
(For the CPU module, use the special register SD53 to
check.)
When an momentary power failure occurs, remove its
cause.
7F69
H
Parity error
• The parity bit setting does not match.
• Communication line became unstable by powering on/off
the target device.
• Noise is generated on the communication line.
• Match the setting of the CPU module with that of the
external device.
• Take noise reduction measures.
7F6A
H
Buffer full error
The receive buffer of the OS overflew and the received data
was skipped.
Perform DTR control and make communication to
prevent a buffer full error.
F
H
- Error detected by the MELSECNET/H network system
Check and correct the sent message of the external
device and restart communication.
(The station number may not be set. Communication
with other stations via MELSECNET/H and Ethernet is
not made.)

Mitsubishi 00JCPU Specifications

General

Brand	Mitsubishi
Model	00JCPU
Category	Controller
Language	English