B.2 parameterisation via fpc, Parameterisation via fpc, B.2.1 – Festo Контроллеры двигателя SFC-LAC User Manual
Page 229: Structure of the festo parameter channel (fpc), Sections b.2.1
B. Supplementary information
B−9
Festo P.BE−GDCP−SFC−LACI−PB−E N en 0812NH
B.2
Parameterisation via FPC
B.2.1
Structure of the Festo Parameter Channel (FPC)
The Festo Parameter Channel" is used for transmitting
parameters. It consists of 8 octets:
FPC
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
Output
data
0
IND
PKE (ParID)
PWE (ParVal)
Input
data
0
IND
PKE (ParID)
PWE (ParVal)
IND
Subindex
PKE
Parameter identifier: PNU and AK
PWE
Parameter value:
ć with double word:
Bytes 5 ... 8
ć with word:
Bytes 7, 8
ć with byte:
Byte 8
Tab. B/1:
Structure of the Festo parameter channel (FPC)
Element
Description
Parameter identifier PKE
(Parameter identifier ParID)
Contains:
Ĉ Parameter number PNU: Identifies a parameter
Ĉ Task or reply identifier (AK): describes the type of task/reply
Subindex (IND)
Addresses an element of an array parameter
Parameter value PWE
(Parameter value ParVal)
Value of the parameter
If a task cannot be carried out, an error number will be transmitted in
the reply (see section B.2.2)
Tab. B/2:
Parameter channel elements