Mitsubishi Melsec-L Series User Manual page 286

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• Intelligent Module Information
The status of the C24 when the error, which is currently selected
under "Error History List", had occurred is displayed.
For the C24, the following will be displayed.
Item
Channel where error occurs
LED ON status, communication error
status
Communication protocol status
Transmission status
Control signal status
MC protocol transmission sequence
status
Nonprocedural protocol Receive user
frame
Predefined protocol Execution status
Predefined protocol Number of protocol
executions
Description
Channel on which an error has occurred.
Communication error and LED ON status of the
channel on which an error has occurred.
(Value of the buffer memory address 201
displayed.)
Communication protocol status at the occurrence of
the error.
(Value of the buffer memory address 252
displayed.)
Transmission status at the occurrence of the error.
(Value of the buffer memory address 253
displayed.)
RS-232 control signal status at the occurrence of
the error.
(Value of the buffer memory address 254
displayed.)
Transmission sequence status at the occurrence of
the error.
(Value of the buffer memory address 255
displayed.)
Receive user frame at the occurrence of the error.
(Value of the buffer memory address 25B
displayed.)
Protocol execution status at the occurrence of the
error.
(Value of the buffer memory address 4041
is displayed.)
Protocol No. at the occurrence of the error.
(Value of the buffer memory address 4103
is displayed.)
15 TROUBLESHOOTING
/202 is
H H
/262 is
H H
/263 is
H H
/264 is
H H
/265 is
H H
/26B is
H H
/4051
H H
/4803
H H
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