Siemens 6GK7242-7KX30-0XE0 사용자 설명서

 

Notes on operation and configuration 

 

4.8 Main and substitute telecontrol server 

CP 1242-7 
Operating Instructions, 03/2012, C79000-G8976-C247-03 

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4.8 

Main and substitute telecontrol server 

Telecontrol server: Main and substitute server 

If TCSB is installed as the main and substitute server, two parallel systems are installed by 

TCSB and these are independent of each other. Both systems have their own database and 

the complete communications functions of TCSB. The two TCSB systems do not monitor 

each other. 

Configuration of the main and substitute server 

Make sure that the configuration data on the two systems are consistent with each other. 

You can achieve this by entering all the configuration data twice manually or after configuring 

the main system, by copying the database of the main system to the substitute system using 

operating system tools. Follow the steps outlined below: 
1.  Copy the database file from the following directory of the main system: 

Programdata > Siemens > Automation > TCS Basic > Data > "Smsc.sqlite" 

2.  Insert the database file at the same location in the file system of the substitute system. 

The existing "Smsc.sqlite" file on the substitute system is overwritten. 

3.  If necessary, adapt the addressing of the database server in the configuration of the 

substitute server under "Settings" if CMT and the database in the main system are 

installed on different computers. 

Copying ensures the consistency of the configuration data. Since the system parameters of 

the main and substitute system can be configured in the CMT, following copying no editing of 

the system parameters of the substitute system is necessary. 

Interaction between the main and substitute server 

In a normal situation, the stations are connected to the main telecontrol server. If the main 

server cannot be reached, the connection of the remote S7-1200 with the CP 1242-7 fails 

over from the main to the substitute server. 

Switchover between the main and substitute server by the CP 1242-7 

When establishing the GPRS connection to the telecontrol server, the CP automatically 

switches over to the substitute server after the 4th dialing attempt if the main server cannot 

be reached.  
If the substitute server cannot be reached either, the 4th time the CP once again tries to 

connect to the main server. 
The intervals of the redial attempts are controlled by the "Redial delay" parameter. 
You will find an example in the section Redial delay (STEP 7) (Page 39).