8 Communication
8.3 I/O Mirror
160
SICAM I/O Unit, 7XV5673, Device Manual
E50417-H1040-C484-A3, Edition 05.2012
8.3.2.2
I/O Mirror Server
Prerequisite
No I/O mirror mode must be parameterized under Ethernet communication.
Parameterization
The following parameters can be parameterized for serial communication (FO or RS485) for the I/O mirror serv-
er mode, see also chapter 6.3.3.8:
Table 8-9
I/O Mirror Server Settings at Serial Communication
Communication Supervision Time
Siemens recommends the monitoring time communication settings indicated in the following table for the
respectively parameterized baud rate:
Table 8-10
Monitoring Time Communication Settings Depending on the Set Baud Rate
Parameter
Default Settings
Settings
Operating mode
I/O mirror server
-
Baud rate
115 200 bit/s
Acc. to list box
Communication supervision time
8 * 10 ms
0 s = invalid
10 ms to 60 000 ms
If there is an FO interface: Fiber
optical idle state
Light OFF
Light OFF
Light ON
Baud Rate
(bit/s)
Communication
Supervision Time
(ms)
187 500
80
115 200
80
57 600
80
38 400
100
19 200
120
9600
150
4800
220
2400
390
1200
720
MAN_SICAM_IO-Unit_7XV5673_US.book Page 160 Thursday, May 10, 2012 10:59 AM