8 Communication
8.3 I/O Mirror
159
SICAM I/O Unit, 7XV5673, Device Manual
E50417-H1040-C484-A3, Edition 05.2012
8.3.2
Serial Communication
8.3.2.1
I/O Mirror Client
Prerequisite
Under Ethernet communication, no I/O mirror mode must be parameterized.
Parameterization
The following parameters can be parameterized for serial communication (FO or RS485) for the I/O mirror client
mode, see also chapter 6.3.3.8:
Table 8-7
I/O Mirror Client Settings at Serial Communication
Response Timeout Setting
Siemens recommends the response timeout settings indicated in the following table for the respectively param-
eterized baud rate in the communication mode bidirectional:
Table 8-8
Response Timeout Settings Depending on the Set Baud Rate
Parameter
Default Settings
Settings
Operating mode
I/O mirror client
-
Communication mode
Bidirectional
Bidirectional
Unidirectional
Baud rate
115 200 bit/s
Acc. to list box
Response timeout
(only communications mode bidi-
rectional)
3 * 10 ms
10 ms to 60 000 ms
Send time synchronization
No
Yes (every minute)
No
If there is an FO interface:
Fiber optical idle state
Light OFF
Light OFF
Light ON
Baud Rate
(bit/s)
Response Timeout
(ms)
187 500
30
115 200
30
57 600
30
38 400
40
19 200
50
9600
60
4800
90
2400
160
1200
300
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