SC-HG1 Series FB Library Reference Manual for Mitsubishi MELSEC iQ-R series Sequencer
WUME-SCHG1IQRFB-1
160/184
Error Code
Hexadecimal
(Decimal)
Description
Meaning
Com
m
uni
ca
tion u
ni
t ope
ra
tion r
el
at
ed e
rror
c
od
es
44C
(1100)
Before receiving a response to a request, the next
request was received.
Before receiving the response to a request, do not
send the next request.
Any request sent before receiving the response is
ignored.
4B0
(1200)
The response to a request timed out.
Check if the communication unit and controllers are
correctly connected.
76C
(1900)
A normal command was not sent.
The measurement value block contains invalid
information.
The communication unit processing timed out.
Check the communication unit is correctly connected
and correctly operating.
7D0
(2000)
Communication between the communication unit
and controller failed.
Check if the communication unit and controllers are
correctly connected and then turn back ON the
power.
If the communication still fails, the controller may be
faulty.
898
(2200)
A request was sent to a non-connected slave
controllers.
This FB library is designed to output '102' to Error
Code (o_uErrId) and therefore '898' (hexadecimal) is
not output to Module Error Code
(o_ud16ModuleErrId). Check if any other ladder
program does not send a command request to
non-existent slave controllers.
960
(2400)
A command request was receiving during recovery
from a horizontal coupling error.
A command was requested during recovery.
Do not request a command until the controller
finishes processing.
9C4
(2500)
44C
(1100)
Before receiving a response to a request, the next
request was received.
Before receiving the response to a request, do not
send the next request.
Any request sent before receiving the response is
ignored.
A28
(2600)
The controller is busy.
Another command was requested while the controller
was busy.
Do not request a command until the controller
finishes processing.
AF0
(2800)
A CRC error occurred during
controller-to-controller communication.
A CRC error may have occurred due to noise. Check
and correct the wiring.