Siemens D7-SYS - Restart Frequency

Communications configuring
System- and communication configuring D7-SYS - SIMADYN D 3-29
Edition 12.2003
Righthand
margin
Lefthand
margin
Channel init. ready; e. g.
all YEV outputs < 9;
NOT.I = 1
Q
NOT
-
I
-
Q
OR
-
I1
I2
-
-
Q
AND
-
I1
I2
I3
I4
-
-
-
-
1
Q
PCL
-
I
T
-
-
Y1
Y2
Y3
Y4
QF
SYF4
-
-
-
-
NO
IAC
-
-
4
If not all channels
are to be checked;
OR.I2 = 1
Enable acknowledge-
ment;
A
ND.I3 = 1
A
cknowledgment onl
y
starts if the master
subrack is available
@CS2.CDM connection
Maximum time within
which 'E' is
acknowledged
Fig. 3-13 Automatic acknowledgement of 'E'
3.3.5 Restart frequency
An additional important communications feature for external
communication interfaces is the restart frequency of
transmitters/receivers. Transmitters/receivers always re-locate their old
channel and re-synchronize with them.
Subracks can be powered-up and down again in any sequence. The
transmitters/receivers of the subracks, in which the CS22 is inserted,
synchronize themselves to the previous channelsat each restart (new
run-up).
If a transmitter/receiver identifies the "right" channel at log-on, then it
cannot identify
Synchronizing
transmitters and
receivers