Communications
configuring
System- and communication configuring D7-SYS - SIMADYN D
3-21
Edition 12.2003
Several central coupling blocks have a CDV connection (Bool. data type).
If there is a positive edge at the CDV input, the central coupling block
inhibits the coupling, and after approx. 10 seconds, formats the data
interface. The data interface is then enabled again.
During this inhibit time and while the data interface is being re-formatted,
all transmitters/receivers go into a wait condition. After enabling, channels
log-on (register) and synchronize just the same as when the system runs-
up.
The subrack coupling is an application. Here, data areas can be reserved
which are not used.
•
If individual subracks with a CS22 module are shutdown, and the
number of transmitters or receivers is reduced due to a configuring
change, the "earlier" reserved data areas on the CS12/13/14 are kept.
•
For communications between CS22-CS22, the CS12/13/14 subracks
are only used as data interface, not as coupling- or communications
partner. The unused data areas are eliminated by re-organizing the
CS12/13/14.
Formatting the data
interface
Example