C
Festo Parameter Channel (FPC)
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Festo – GDCP-CMMO-ST-LK-C-HP-EN – 2017-05b – English
C
Festo Parameter Channel (FPC)
C.1
FPC for cyclical I/O data
The FPC is used for transmission of parameters in the cyclical I/O data. An additional 8 I/O bytes have
been added to the 8 bytes of I/O data of the FHPP standard for this purpose.
Data
Byte 1 ... 8
Byte 9 ... 16
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
O-data
FHPP standard control bytes
FPC control data
I-data
FHPP standard status bytes
FPC status data
Tab. C.1
Cyclical I/O data FHPP st FPC
The motor controller CMMO-ST only supports the extended functions of the Enhanced
Festo Parameter Channel EFPC correspondingly
è
C.2
Overview of EFPC
The EFPC extended parameter channel permits automated transmission of parameters and larger data
sets in the form of a parameter file.
Modules with which transmission can be easily implemented are available for some selec
ted controllers at
è
www.festo.com/sp.
C.2.1
EFPC structure
The EFPC extended parameter channel uses the 8 bytes of the FPC.
The structure of the EFPC is shown in
è
Data
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
O-data
FPCC
Control and status data independent of the transmission mode
è
I-data
FPCS
Tab. C.2
EFPC structure in general
In general, observe the specification in the bus master for representation of words and
double words (Intel/Motorola). For example, the representation via Modbus uses the “big
endian” representation (high-order byte first).
Содержание CMMO-ST-C5-1-LKP
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