Omron 3G3AX-MX2-PRT-E, User Manual

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51
Accessing Parameters
Section 4-5
4-5-2-5 Processing an Error Response
When the Option Board is unable to execute one of the read parameter
instructions, it adds an error value to the result data. Reading parameters
A001, A166 and P033 for example:
Has the following result:
Note that the value of parameter A166 is replaced with an error value in the
result data. Inverter parameter A166 does not exist, so error number 0000h
(Bad parameter number) is returned. Note that the values of A001 and P033
are returned irrespective of other read errors.
Note If a read on one of the elements in an array fails, an error is returned on the
parameter. Successfully read elements can therefore not be returned.
Table 69 DP-V1 Class 2 Write-Parameter Read Instruction Bad Parameter
Word offset
DP He
ader
MSAC
2_W
rite
+0 +1
Description Request Header
REF RT DO N
Message
data
[hex] 0A 01 01 03
[dec] 10 1 1 3
Request reference 3 parameters address to follow
Parameter read instruction
1
st
Inverter attached to Option Board
+2 +3 +4 +5 +6 +7 +8 +9 +10
DP T
railer
Parameter Address Parameter Address Parameter Address
PA CA PNU IND PA CA PNU IND PA CA PNU IND
10 00 03E9 0000 10 00 048E 0000 10 00 3EA1 0000
16 0 1001 0 16 0 1166 0 16 0 16033 0
Parameter A001 Parameter A166 Parameter P033
Non-array Non-array Non-array
Addressing a value Addressing a value Addressing a value
Table 70 DP-V1 Class 2 Read-Result of Read Instruction on Bad Parameter
Word offset
DP Head
er
MSAC2_R
ead
+0 +1
Description Request Header
REF RT DO N
Message
data
[hex] 0A 81 01 03
[dec] 10 129 1 3
Request reference 3 error values to follow
Parameter read error
1
st
Inverter attached to Option Board
+2 +3 +4 +5 +6 +7
DP T
rai
ler
Value Value Value
FMT CV DATA FMT CV DATA FMT CV DATA
42 01 0004 44 01 0000 42 01 0302
66 1 4 68 1 0 66 1 770
DATA format = WORD DATA format = WORD
DATA format = Error no Bad parameter number
1 value
A001 A166 P033
I111E-EN-02+3G3AX-MX2-RX-PRT+OperManual.book Seite 51 Donnerstag, 8. September 2011 11:53 11