Siemens SIMATIC S7-1200 CP 1243-8 IRC Operating Instructions Manual page 217

● "Interfaces" tab
– Modem type
– Connection mode
● AT strings for TS modules
AT strings were added for the TS modules, see below.
● "Special " tab
The tab no longer exists.
● "Options" tab
The tab no longer exists.
● No loading of firmware
The loading of firmware files on a CP 1243-8 IRC is not supported.
"Interfaces" > "Connection mode" tab
Options of the "Connection mode" parameter for both interfaces:
● Ethernet interface
– MSC station
– GPRS station
– Neutral
● Serial WAN interface
– MSC station
– Neutral
CP 1243-8 IRC
Operating Instructions, 02/2018, C79000-G8976-C385-03
TS modules are added here due to the different connection of WAN transmission
devices to the CP 1243-8 IRC.
When the CP 1243-8 IRC is used as successor module with imported configuration
data, it can only be used as station. This changes the selection of the connection
modes; see below.
The communication is handled using the MSC protocol. The proxy is configured to
connect to the Internet as an MSC station via a DSL router.
The proxy is configured to connect to the Internet as a GPRS station via an MD720.
On the Ethernet interface, there is normal TCP/IP communication with the ST7
protocol. The proxy is not connected via GPRS and the MSC protocol is not activated.
The serial interface is configured as an Ethernet interface. The communication is
handled using the MSC protocol. The proxy is configured to connect to the Internet as
an MSC station via a DSL router.
The serial WAN interface of the proxy is set to the connection mode "Neutral" if
communication is handled via a dial-up network or dedicated line.
STEP 7 V5 configuration of the proxy
D.2 Special features of the PROXY CP1243-8 IRC
217