Technical data

Configuring the TS Adapter I/II
TeleService V6.1 Service Software for SIMATIC S7 and C7
A5E00921336-01
5-5
5.9 Modem Initialization String for the TS Adapter I/II
5.9.1 Properties of the Modem Initialization String for the
TS Adapter I/II
The initialization string is a string consisting of AT commands (quasi-standard
commands for modems) with which the modem connected to or integrated in the
TS Adapters I/II is initialized.
Although you can change the character string, it must satisfy certain requirements
for initialization.
Requirements
The following modem properties have to be set with the initialization string:
• The modem provides feedback messages.
• The feedback is output in clear text.
• The DCD signal is only activated when a connection exists.
• The interface speed between the TS Adapter I/II and the Modem is not
changed after the connection has been established.
• The RTS/CTS protocol is active as a flow control between the TS Adapter I/II
and the programming device or PC respectively.
• The automatic call acceptance by the modem is activated.
5.9.2 Preset Modem Initialization String for the TS Adapter I/II
The TS Adapter I/II is supplied with a standard value for the initialization.
Note
The initialization string is selected so that most modems can be configured and
initialized correctly. It is not optimized for a specific modem.
The exceptions are listed in the table below.
Modem: Replace ... By ...
US Robotics Sportster 28.8 Vi &F &F1
US Robotics Sportster 33.6 &F &F1
US Robotics 56K Message &F &F1
For further special settings please refer to the SIMATIC hotline, if necessary.