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PLC Commissioning
10.5 Parameter Access
Every parameter and variable in a LinMot system has its own UPID (Unique Parameter ID).
Every UPID is mapped to its own manufacturer specific IDN to access it via the sercos service channel.
UPIDs are mapped according to the following table:
UPID
IDN (dec)
0xHBLB
P-Y-0000.HBdec.LBdec
HB:
High Byte (hexadecimal), HBdec: High Byte (decimal)
LB:
Low Byte (hexadecimal), LBdec: Low Byte (decimal)
Y =
0: RAM value of a UPID is accessed
Y =
1: ROM value of a UPID is accessed
Y =
2: RAM and ROM value of a UPID is accessed (only applicable when writing UPIDs)
(Note: Not every UPID has a RAM and a ROM Value)
Example:
Access RAM value (Y=0) of UPID
UPID
=
0x13A6
IDN (dec)
=
P-0-0000.19.166
IDN (hex)
= 0x13A60000 + (0x00008000 + 0x00000000) = 0x13A68000
10.5.1 Supported UPID Functions via IDN Access over the Sercos Service Channel
Use Schneider functions FC_SercosReadServiceData & FC_SercosWriteServiceData (see Schneider help)
UPID Access
Read UPID value (RAM or ROM value)
Write UPID value (RAM and/or ROM value)
Get minimum value of UPID
Get maximum value of UPID
Attention ROM Access:
Intense use of writing into the ROM memory can reduce the lifetime of the drive memory!
More details can be found in the Drive Configuration Over Fieldbus (0185-1074) user manual
> see chapter Documentation / User Manuals
Advanced:
By writing anything to IDN P-0-0099 (hex: 16#00008063) a drive reboot can be performed (e.g. to
load and activate written ROM parameters).
Attention: The sercos line/ring will be interrupted until the drive has completed the reboot.
NTI AG / LinMot
IDN (hex)
0xHBLB0000 + (0x00008000 + 0x0000Y000)
0x13A6
(Maximal Current of Control Parameter Set A)
Data Service Type (i_wType)
5 (read/write user data)
5 (read/write user data)
3 (read/write min. value)
4 (read/write max. value)
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