Siemens 6GK7242-7KX30-0XE0 사용자 설명서

Notes on operation and configuration 

 

4.7 Data transfer between communications partners 

 

CP 1242-7 

42

 

Operating Instructions, 03/2012, C79000-G8976-C247-03 

●  Send process image 

–  Data that the "TC_SEND" instruction in the program of the S7-1200 CPU transfers to 

the CP to send via GPRS for a read job. 

–  Data called up by a read job of the telecontrol server. 

●  Receive process image 

–  Data that the "TC_RECV" instruction in the program of the S7-1200 CPU receives 

from the CP for a receive job. 

–  Data that the CP receives via GPRS and forwards to the "TC_RECV" instruction for a 

write job of the telecontrol server. 

4.7 

Data transfer between communications partners 

4.7.1 

Sending from station to station 

Sending to an S7 station with CP 1242-7 

After transferring data from the CPU (TC_SEND) to the send process image of the CP, the 

CP sends the data immediately to the remote communications partner via GPRS. This 

applies to the S7 stations: 
●  S7 stations that can be reached via the telecontrol server. 

CP in "Telecontrol" mode 

●  S7 stations that can be reached directly. 

CP in "GPRS direct" mode 

4.7.2 

The S7-1200 sends data to the master station (TC_SEND) 

Requirements 

●  The OPC server has been started on the telecontrol server (an OPC client has connected 

to the telecontrol server). 

●  The TC_CON instruction was started successfully.