2.4 Communications with MP-series Controllers
Message Functions
2-81
COMMAND
These bits indicate the processing command of the MSG-RCVE function.
* MR_SEND is executed after M_REC is executed.
PARAMETER
When RESULT = 4 (FMT_NG: parameter formatting error), these bits will indicate an error code from the
following table. For any other value, the bits will contain the connection number.
Detail Error Code (PARAM02 and PARAM03)
These parameters give the detail error code.
Code (Hex) Abbreviation Meaning
1U_SEND
General-purpose message transmission (for no-protocol communi-
cations)
2U_REC
General-purpose message reception (for no-protocol communica-
tions)
3 ABORT Forced abort
8M_SEND
MEMOBUS command transmission: Completed when response is
received.
9
M_REC
∗
MEMOBUS command reception
C
MR_SEND
∗
MEMOBUS response transmission
RESULT Code (Hex) Meaning
When RESULT = 4 (FMT_NG:
Parameter Formatting Error)
00 No error
01 Connection number out of range
02 Watchdog error for MEMOBUS response
03 Error in number of retries setting
04 Error in cyclic area setting
05 CPU number error
06 Data address error
07 Data size error
08 Function code error
Others Connection Number
Processing
Result Value
(PARAM00)
Detail
Error
Code
Error Description Description
81 hex 1 Function code error
An unused function code was received. Check the function
code of the remote station.
82 hex 2 Address setting error
The setting of one or more of the following parameters is out
of range. Check the settings.
PARAM14 and PARAM15 (Data Address)
PARAM20 and PARAM21 (Coil Offset)
PARAM26 and PARAM27 (Hold Register Offset)
83 hex 3 Data size error
The data size for receiving is out of range.
Check the data size at the remote station.
84 hex 4
Circuit number setting
error
The circuit number is out of range. Check the circuit num-
ber (Cir-No) in the MSG-RCVE function.
Continued on next page.