2.12 Process data control
2.12.1
PAD_Steuerung
67
2.12 Process data control
This function emulates the process data, which are transmitted via the process data channel, on the communication objects.
The COMPAX process data channel has a width of 2, 4 or 6 bytes; depending on the value in parameter 196. Each byte can be
read and written by COMPAX.
The data read by COMPAX from the process data channel are called process output data (PA data). The data written by
COMPAX into the process data channel are called process input data (PE data).
Through the emulation of COMPAX communication objects to the PE data, the latter are cyclically read on the process data
channel. The PA data which are emulated to a COMPAX communication object cyclically describe this object.
The allocation of process data to certain communication objects is determined by the objects "PE_SELECT" and "PA_SELECT"
(the objects "IN_SELECT" and "OUT_SELECT" are previous names).
Both objects "PED_INI" and "PAD_INI" determine which allocation shall be valid after Power-On (this corresponds to the
settings through the COMPAX - Parameter).
The PA data can be enabled or disabled with the objects "OUT_ENABLE" or "PA_ENABLE".
After Power On the PA data are enabled!
2.12.1
PAD_Steuerung
The process output data can be used to cyclically write to the following COMPAX communication objects.
Object name
Description
Index
COMPAX -
Parameter
Byte
see
dec
hex
P139 ... P142
Number
page
STEUERBYTE
Control byte
24526
0x5fce
1
STEUERWORT
Control word
24640
0x6040
2
CPX_STW
COMPAX control word/virtual inputs
24530
0x5fd2
2
CONTROL
Control commands
24553
0x5fe9
1
LAGE_ZIEL
Target position default
24698
0x607a
4
SPEED
Traverse speed
24556
0x5fec
2
OVERRIDE
Reduce traverse speed
24558
0x5fee
1
OUTPUT_WORD
16 Dig. Set/reset outputs
24567
0x5ff7
2
START_N
Execute program record N
24564
0x5ff4
1
START_N_GO
Program start beginning at record N
24549
0x5fe5
1
OBJECT_REQ
Read and write objects through PAD
24517
0x5fc5
6276352
6
Because the PAD channel has a max. length of 8 bytes, it is not possible to have simultaneous access all the objects listed
here. This means you need to make an appropriate selection.
2 Index * 256 + Sub-index
Содержание Hauser COMPAX-M Series
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