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

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Read Parameter Request
APPENDIX E
E-1 Read Parameter Request
Note 1 The request header is preceded by the DP and MSAC2 headers. Describing
these however is outside the scope of this manual.
Note 2 Please refer to APPENDIX F Option Board Parameters on page 91
Table E-1 PROFIdrive V4 Parameter read request
Word Offset Contents High byte Low byte
+0 Request Header
*1
REF RT
+1 DO N
+2 1
st
Parameter Address PA
1
CA
1
+3 PNU
1
+4 IND
1
+ (LEN-3) N
th
Parameter Address PA
N
CA
N
+ (LEN-2) PNU
N
+ (LEN-1) IND
N
REF Request reference (Typically incremented by user program)
RT Request type:
01h
: Parameter read instruction
DO Drive object:
01h
: Inverter number (Only one attached to Option Board)
N The number of parameter addresses to follow
PAx Parameter attribute:
10h
: Read value(s)
CAx The number of elements:
0
: Single value read (Non array)
1..255
: Number of elements to read
PNUx Parameter number:
0..889
: Reserved
4001..4999
: Parameters d001 to d999
890-999
: Option Board parameters
*2
6001..6999
: Parameters F001 to F999
1001..1999
: Parameters A001 to A999
8001..8999
: Parameters H001 to H999
2001..2999
: Parameters b001 to b999
16001..16999
: Parameters P001 to P999
3001..3999
: Parameters C001 to C999
21001..21999
: Parameters U001 to U999
INDx Index to start reading from:
0
: Single value read (Non array)
1..65535
: Specified array index
LEN Parameter request frame size in words
I111E-EN-02+3G3AX-MX2-RX-PRT+OperManual.book Seite 86 Donnerstag, 8. September 2011 11:53 11