Technical data

Glossary
TeleService V6.1 Service Software for SIMATIC S7 and C7
A5E00921336-01
Glossary-5
PG_DIAL
The function block FB 46 "PG_DIAL" transfers a phone number and a freely
assignable event ID for error identification or for identifying a message number to a
TS Adapter.
Phone Book
Phone books are used in TeleService to manage the plant data. Phone books are
the highest hierarchic level. They contain folders in which plants with specific data
for establishing remote connections are saved.
Plant
Plants contain plant-specific data for establishing remote connections. Plants are
located in folders, which in turn are managed in phone books.
Remote Connection (Remote Link)
A remote connection is an asynchronous connection build-up from a plant to a
programming device/personal computer The call is initiated by calling the function
block 46 "PG_DIAL".
A remote connection / remote maintenance occurs when you use TeleService to
access a remote plant via the telephone network. The PG/ PC is connected to the
telephone network via a modem for this. The automation system at the other end is
connected to the telephone network via a configured TS Adapter and a modem.
You can use the remote connection to modify the selected plant as usual with
STEP 7 (remote maintenance).
Remote Connection
A remote connection (link)/teleservice connection arises when you use TeleService
to dial into a remote plant via a phone network. To this purpose the programming
device/personal computer with TeleService connected via a modem to the phone
network. At the other end the automation system is connected via a configured
TS Adapter and a modem to the phone line. A remote connection makes it possible
to edit the dialed plant as usual with STEP 7 (teleservicing).
Requirements Placed on the Initialization String
The following properties have to be specified in the string for initializing the modem:
• The modem provides feedback messages.
• The feedback is output in clear text.
• The DCD signal is only activated when a connection exists.
• The transfer speed between the TS Adapter 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 and
the programming device or PC respectively.
• The automatic call acceptance by the modem is activated.