YASKAWA MP2000 Series Troubleshooting Manual page 46

3.3 Message Communication Error
3.3.3 Checking the Message Function
[ a ] Checking the process result (PARAM00) when using the message transmission function (MSG-
SND)
• When the process result is other than the communication section error (88xxH)
Value of Process
Result
Function code error
81xxH
82xxH Error in setting address
Data size error
83xxH
Error in setting circuit
84xxH
number
Error in setting channel
85xxH
number
Connection number
86xxH
error
89xxH Device select error
• When the process result is the communication section error (88xxH)
For the details on the communication section error (88xxH), refer to [ c ] Checking the status (PARAM01) of
3.3.3 ( 1 ) Checking the Process Result and the Status.
Value of Process
Result
Communication sec-
tion error
An error response was
88xxH
returned from the com-
munication section
(transmission device).
3-14
Error Details
Unused function code was transmitted from the
local station.
Unused function code was received from the
remote station.
One of the following settings is out of the set-
ting range.
PARAM05 (data address)
PARAM08 (coil offset)
PARAM09 (input relay offset)
PARAM10 (input register offset)
PARAM11 (holding register offset)
The transmit data size of the local station is out
of the setting range.
The receive data size from the remote station is
out of the setting range.
The circuit number is out of the setting range.
The communication buffer channel number is
out of the setting range.
The connection number is out of the setting
range.
Unavailable device is set.
Error Details
The remote station is not in the communication
enabled status.
More than one message function has been exe-
cuted simultaneously for the same Cir-No (cir-
cuit number) and Ch-No (communication
buffer channel number).
More than one message function has been exe-
cuted simultaneously for the same Cir-No (cir-
cuit number) and PARAM02 (connection
number).
The message function was executed while the
Ethernet Module was not ready to receive mes-
sage transmission or receive requests (in a sta-
tus other than the RUN status).
Cause
Check PARAM04 (function code).
Check whether the remote station is transmit-
ting valid data.
Check the settings to the left.
Check PARAM06 (data size).
Check whether the remote station is transmit-
ting data of a valid size.
Check Cir-No (circuit number) of the message
function.
(Refer to [ c ] Cir-No (Circuit number) of 3.3.3
( 2 ) Checking the Entries to the Message
Function.)
Check Ch-No (communication buffer channel
number) of the message function.
(Refer to [ d ] Ch-No (Communication Buffer
Channel) of 3.3.3 ( 2 ) Checking the Entries to
the Message Function.)
Check PARAM02 (connection number).
Check Dev-Typ (transmission device type) of
the message function and select the appropriate
device type.
(Refer to [ a ] Dev-Typ (Transmission device
type) of 3.3.3 ( 2 ) Checking the Entries to the
Message Function.)
Cause
Check the communication settings of the
remote station.
Review the ladder program so that more than
one message function will not be executed
simultaneously.
(Refer to [ c ] Cir-No (Circuit number) and [ d
] Ch-No (Communication Buffer Channel) of
3.3.3 ( 2 ) Checking the Entries to the Message
Function.)
Review the ladder program so that more than
one message function will not be executed
simultaneously.
Adjust the timing for executing the message
function for the first time in the ladder pro-
gram, for example by using a timer command.
Remedy
Remedy