Reaction To Interruption Of Bus Communication Or Dp Slave Failure - Siemens SIMATIC S5 Manual
Distributed i/o system
Hide thumbs
Also See for SIMATIC S5:
- Manual (396 pages) ,
- Equipment manual (197 pages) ,
- Operating instructions manual (43 pages)
Table of Contents
Advertisement
12.3.4 Reaction to interruption of bus communication or DP slave failure
Error-reporting
Unlike the IM 308-C, the S5-95U as DP master does not support an
mode "none"
error-reporting mode (neither PEU nor QVZ).
Caution
!
In the application program, you can detect an error in the distributed I/O
system only by analyzing the overview diagnostics or the slave diagnostics
with the FB 230.
Response of bus
This table shows the reaction to an interruption in bus communication or the
system
failure of one or more DP slaves.
Table 12-4 Reaction to interruption of bus communication or failure of a DP slave
Failed
Reaction of the
DP slave(s):
DP slave(s):
Response monitoring
No
S5-95U remains in
RUN
Yes
S5-95U remains in
RUN
ET 200 Distributed I/O System
EWA 4NEB 780 6000-02a
Failed
DP slave
Reaction of the S5-95U and
S5-95U as DP
S5-95U as DP
the failed DP slave(s):
the failed DP slave(s):
master
S5-95U:
Inputs in the S5-95U are set to
"0"
Outputs in the S5-95U are
updated internally
DP slave:
Outputs are frozen
S5-95U:
Inputs in the S5-95U are set to
"0"
Outputs in the S5-95U are
updated internally
DP slave:
Outputs are set to "0" when the
response monitoring time times
out.
S5-95U – starting ET 200
S5-95U
Remaining DP slaves
Reaction of the S5-95U and
the remaining DP slaves:
the remaining DP slaves:
S5-95U:
Inputs and outputs in the
S5-95U are updated as before.
DP slaves:
Outputs are updated as before.
S5-95U:
Inputs and outputs in the
S5-95U are updated as before.
DP slaves:
Outputs are updated as before.
12-9
12
- Quick Links:
- IM 308-C Master Interface
Hide quick links:
Advertisement
Table of Contents
