Serial Interface (Ses) And Profibus Dp (Input/Output Functions) - Siemens SIPART DR24 Manual

1 Technical Description
1.5 Functional Description
1.5.4 Serial Interface (SES) and PROFIBUS DP
dd1
dA2/
dA1
L14
dd2
L13
dd3
tA7
Figure 1--15 Designation of the displays, keys and LEDs on the front module of the SIPART DR24
1.5.4 Serial Interface (SES) and PROFIBUS DP
(Input/Output Functions)
The input and output (write and read) of the SES includes freely switchable inputs and outputs
(SAE, SbE or SAA, SbA) and permanently assigned read only inputs and outputs (AE, BE or AA,
BA) of the SIPART DR24. In addition the parameters and the configuration data can be written and
read. For further explanations of the interface traffic (procedure, address ranges, data format), see
Instruction Manual C73000-B7476-C135 (edition ≥4) and type GSD file.
The data sinks SA(E)*.1 (tracking variable) and SA(E)*.2 (control signal tracking) serve to track the
data source SA*.3 when switching between this data source and another source and the switching
in the direction SA(E)*.3 is to be bumpless. No tracking takes place due to the defaulting of SA(E)*.2
with low.
The interface communication can be monitored for cyclic processing. A monitoring time can be de-
fined with the private parameters Cbt; if the time interval between two telegrams is greater than the
defined monitoring time, the digital input SbE1 is set to low. As a result switching processes could
be triggered.
If SES data sources are connected with the sinks bLS, bLPS or bLb, they are set to low when the
monitor responds or at Cbt = oFF (SES--OFPA) (see also chapter 3.3.7, table 3--8, page 157)!
34
L1
tA1
L2
L3
L4
tA2
L5
L6
tA3
L7
L8
tA4
L9
L10
tA5
L11
L12 tA6
Manual
SIPART DR24 6DR2410
C79000-G7476-C153-03