Other Services And Properties - Siemens S7-1200 TELECONTROL Operating Instructions Manual

S7 communication
Reading / writing data from / to a CPU via the mobile wireless network is possible if S7
communication is enabled in the configuration of the CP.
The following instructions are supported:
● PUT / GET
You will find details on the program blocks in the information system of STEP 7
For S7 communication, the CP requires a fixed IP address, see section Other services and
properties (Page 11).
TeleService via the mobile wireless network
TeleService is possible if the online functions are enabled in the configuration of the CP.
A TeleService connection can be established between an engineering station (PC with
STEP 7) and a remote S7-1200 station via the mobile wireless network and the Internet.
You can use the TeleService connection for the following purposes:
● Downloading project or program data from the STEP 7 project to the station
● Querying diagnostics data on the station
You will find application examples of the structure in the section Configuration examples
(Page 17).
For more detailed information, refer to section Establishment of a TeleService connection
(Page 89).
1.3

Other services and properties

Other services and properties
● Data point configuration
Due to the data point configuration in STEP 7, programming program blocks in order to
transfer the process data is unnecessary. The individual data points are processed one-
to-one in the control system.
● IP configuration
The CP is assigned a dynamic or a fixed IP address by the mobile wireless network
provider:
– Dynamic IP address
– Fixed IP address
CP 1242-7 GPRS V2
Operating Instructions, 10/2016, C79000-G8976-C311-02
When using telecontrol communication, the mobile wireless network provider generally
assigns the CP a dynamic IP address. You set this in STEP 7 in the parameter group
"Ethernet interface > Ethernet addresses".
To use S7 communication or to receive data via Open User Communication, the CPU
must be reachable via a fixed IP address. In this case, enter the fixed IP address
assigned by the mobile wireless network provider in the same parameter group.
Application and functions
1.3 Other services and properties
11