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DCN Next Generation Open Interface Release 2.4 Config Install and Database
en | 42
Bosch Communications Systems | 2007 February | SRS_SCSIINF | Du010934
3. SYSTEM CONFIGURATION (SC) FUNCTIONS
3.1 Introduction
The system configuration functions described in this section are needed to query the set-up
of the DCN NG-system from the CCU. The system configuration functions allow the remote
controller to monitor any changes in the DCN NG system configuration. This chapter defines
the set of remote functions for system configuration.
3.2 SC_C_CHECK_LINK
Purpose
Function, which does no execution on the CCU. This function is to check the communication
link between the CCU and the remote controller. When executed, the function returns
immediately. Therefore quickly returning SC_E_NOERROR to the remote controller when
there is a connection.
Availability
This function is available in CCU system mode's init, maintenance, config and congress.
Parameter structure for the function
The function has no additional parameters.
Response structure from the function
The function has no response parameters.
Error codes
SC_E_NOERROR
3.3 SC_C_START_APP
Purpose
Indicates the CCU that the remote controller wants update notifications from the SC
application inside the CCU. After receiving this function the CCU increments the update ‘use’
count. As long as the update use count is greater than zero, the CCU will send update
notifications to the remote controller.
The returned update use count can be used to detect if the remote controller is connected too
often.
When you omit the execution of this remote function, you can still execute remote functions,
but no update messages will be send to the remote controller.
Availability
This function is available in CCU system modes config and congress.
Parameter structure for the function
The function has no additional parameters.
Response structure from the function
The function returns the following structure:
WORD wNrOfInstances
where:
wNrOfInstances The value of the update use count for the SC application at the
end of the function handling. It contains the number of times a
remote PC has been connected over the same communication
medium. E.g. the first time the function SC_C_START_APP is
called, it contains the value 1.
Error codes returned
SC_E_NOERROR
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