Communication Error "P/S - Mitsubishi Melsec-L Series User Manual

Symptom
• An error was generated on
• The local station CPU
• Module installation address
• Communication
error signal "C/N"
turned on.
• A command that cannot be

15.3.9 Communication error "P/S"

Symptom
• Data does not match the
• Sum check codes do
• When CH1 and CH2 are
• Communication
error signal "P/S"
turned on.
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Cause
the CC-Link IE Controller
Network.
module on the CC-Link IE
Controller Network
generated an error.
designation during
communications with
intelligent function module
is incorrect.
transmitted during RUN
(sequence program,
parameters, etc.) was
transmitted, or "Online
Change" is disabled by
setting.
Cause
parity bit setting.
not match.
used in the linked mode,
the cable is not
connected to one of the
interface.
Corrective action
• Check the error contents from the state of
SB and SW related to the CC-Link IE
Controller Network with the GX Works2
monitor, etc. and perform the checks and
take the corrective action described in the
CC-Link IE Controller Network reference
manual.
• Change the transmit message designation
data.
• Stop the CPU module and restart data
communications.
• Enable the "Online Change" by command
and restart data communications.
Corrective action
• Check the C24 and external device data format
and match the settings.
• Check if the sum check code transmitted from
the external device is correct. (Recalculate)
• When using CH1 and CH2 independently, check
that the C24 is not in the linked mode.
• When using CH1 and CH2 in the linked mode,
also connect the cable to both of the interfaces.
Note
• If the cable is not connected to one of the
interfaces when CH1 and CH2 are used in
the linked mode, noise may enter and the
data may be destroyed and "Data cannot be
decoded" or "Communications error cause"
may occur.
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