Anyparameter Service - Vacon NX OPTC6 User Manual

30 • vacon
7.8

Anyparameter service

SDO protocol can be used to read any parameter or actual value and write any parameter from drive.
These parameters are read from drive with it's ID number specified in user manual. There are three
index in object dictionary as follow for anyparameter service.
Index Description
2000 AnyparameterReadID
2001 AnyparameterReadValu
e
2002 AnyparameterWrite
Reading anyparameter
Writing new value to index 2000 will trigger read event, while read is in process index 2001 is zero.
Read event will return value to index 2001. If read is succes status will get value of ID and Value is
value of ID. If read fails Status will get value 0xFFFF (dec 65535).
Writing anyparameter
When new ID and value is written to index 2002 a write event will be triggered. Index 2002 value will
remain as long as writing is processed (normal sdo/pdo operation during this time). If write is succes
index 2002 ID and value will be cleared and new write is possible. If write fails ID will clamp to 0xFFFF
and value zero.
0x0066
Index 2000
Read ID
0x0066
Index 2001
Status
Figure 7-1. Reading Any Parameter
Index 2002
0x0000
Index 2002
Figure 7-2. Writing Any Parameter
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Size Type
U16 RW
U32 RO
U32 RW
16bit
0x0032
16bi 16bit
Value
16bi 16bit
0x0066 0x003C
ID Value
16bi 16bit
0x0000
Status
Hi 16b
-
Status
ID
Write ID with SDO protocol
.
. 100ms delay for read event
.
Read value with SDO protocol
0xFFFF 0x0000 = Fail
ID Value = OK
0x000 0x0000 = In process
Write ID and value with SDO
protocol
.
. 100ms delay for write event
.
Read write event status
0x0000 0x0000 = OK,
0xFFFF 0x0000 = Fail
0x0066 0x003c = In Process
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nx interface
Low 16b
Read ID
Value
Write Value