BONFIGLIOLI Vectron Agile Series Communications Manual page 23

Available Objects / Scanning Times
Direction of transmission Slave  Master (IN)
Communication Channel
PKW area
PKE IND
PWEh
PKW Parameter identification value
PZD Process data channel
Inx = user defined
Consistency area
Communication Channel
PKW area
PKE IND
full length
The consistency area describes the parts of the object which must have consistent contents. The
consistency states are encrypted in the configuration data of the GSD file and have effects on the
possible access mechanisms on the part of the DP master. In this way, the 8 bytes of the
communication channel in a PLC of type Siemens S7 can only be reached via the special functions
SFC14 (DPRD_DAT) and SFC15 (DPWR_DAT). The words of the process data channel are directly
addressable as periphery input/output words (PEW, PAW).
Communication Channel
PKE IND
PPO1
PPO2
PPO3
PPO4
PPO1 ... PPO4 are predefined configurations. With the help of the PZD- and PKW-objects you are able
to build your own application specific configuration.
The communication channel is always treated identically. This is valid for the predefined configurations
PPO1/PPO2 and custom specific configuration with communication object PKW.
The process data channel objects PZD1/PZD2 are firmly defined and its contents cannot be altered.
The contents of process data channels PZD3 to PZD 18 (maximum, without communication channel
PKW !) is user defined.
Note: In the data transmission, the Motorola format is presupposed for the position of
Low/High byte first, as is also supported by a PLC of the type Siemens S7. If the DP master
supports the Intel format, Low/High byte are to be swapped on the master side before
transmission and after receipt.
06/2010
PWE PWE PZD 1
PWEl ZSW
ZSW = State word
PWE PWE PZD 1
word
PWEh PWEl
Profibus DP V1 Agile
Process Data Channel
PZD area
PZD 2 PZD x PZD x
HIW Inx Inx
HIW = Main actual value
Process Data Channel
PZD area
PZD 2 PZD x PZD x
word word word
Process Data Channel
PZD1 PZD2 PZD3 PZD4
PZD x PZD x
Inx Inx
PZD x PZD x
word word
PZD5 PZD6
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