3
Process data
During data transmission, distinction of process data to be transmitted cyclically and parameter /
configuration data to be transmitted acyclically is made. The I/O data field is structured modularly for
matching it to the requirements of the control task.
Selection of the process data module is via configuration tools of the master circuits (e.g. with Siemens S5
via COM PROFIBUS).
The following process data modules can be configured:
Process data
module A:
read (66 bytes)
1)
write
1)
(52 bytes)
without
parameter
channel
Instrument status, (process value, output value, status, ..) Instrument control, (set-point, output value, ...)
Process data
module B:
read (74 bytes)
1)
write
1)
(60 bytes)*
with
parameter
channel
Instrument status, (process value, output value, status, ..) Instrument control, (set-point, output value, ...)
Process data
module C:
only parameter channel
1)
(8/8 bytes)
Process data
module D:
read (74 Byte)
1)
write (60 Byte)
1)
with parameter
channel
Instrument status, (process value, output value,
status, ..)
Instrument control, (set-point, output value, ...)
Process data
module E:
read (116 Byte)
1)
write (116Byte)
1)
with parameter
channel
Instrument status, (52 variable process data)
Instrument control, (52 variable process data)
Process data
module F:
read (92 Byte)
1)
write (92 Byte)
1)
with parameter
channel
Instrument status, (40 variable process data)
Instrument control, (40 variable process data)
Process data
module G:
read (28 Byte)
1)
write (28 Byte)
1)
with parameter
channel
Instrument status, (8 variable process data)
Instrument control, (8 variable process data)
Process data
module H:
read (16 Byte)
1)
write (16 Byte)
1)
with parameter
channel
Instrument status, (multiplexing 64 variable
process data)
Instrument control, (multiplexing 64 variable process
data)
The parameter channel is used for sequential transmission of parameter and configuration data. The values to
be adjusted and data significations are given in the following tables:
For the process data modules (module E - H), the cyclical transmission data must be selected by means of
the ‘KS800’ engineering tool via
General instrument settings
r
Communication
r
Bus data
.
Max. 64 data for reading and 64 data for writing can be selected. Dependent of selected process data
module, the first 52 data (module E), the first 40 data (module F), the first 8 data (module H) or all
data are used (module G).
Process data
9499 040 50511
8
1) Number of required bytes in the I/O field
