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Cyclical initialization (I)
This parameter defines the period of time for a cyclical issue of the initialization command
“ATZ“. The command is not issued during dial-up or when connected. “ATZ“ causes the pro-
file 0 to be copied to the active profile, provided the modem parameters have been set and
saved in profile 0 using a suitable terminal program. With CO6 -> F04 - 1, cyclical initial-
ization of the modem is not required.
Modem dialing pause (P)
It is recommendable to pause for approx. 3 to 5 minutes between dialing up to the control
system/the text messaging center to avoid a permanent overloading of the telecommunica-
tions network. The
Modem dialing pause defines the interval between 2 dialing attempts.
Modem time-out (t)
When the controller connects to the GLT but without addressing a Modbus data point, the
connection is closed after the time specified for
Modem time-out has elapsed. If the error sta-
tus register has not been read during the GLT connection, the controller dials up to the GLT
again after the
Modem dialing pause (P) has elapsed.
When sending a text message via SMS, the specified time does not have any meaning.
Number of redialing attempts (C)
The controller tries to dial up to the control system again, observing the
Modem dialing
pause, in case the GLT/text messaging center is busy or the function that triggered the call
has not been reset by the controller. After the specified number of redialing attempts have
failed, “OFF“ is indicated in the controller's extended operating level. The dialing attempt
counter is automatically reset at 12:00h and the controller tries to connect again.
Resetting of triggered call = Reading the error status registers (HR40150)
Phone number of control station (tELnr)
Enter the phone number of the control system modem including the dialing code, if neces-
sary. Short pauses between the numbers can be entered using P (= 1 second); the end of the
string is to be marked by “–“. The phone number may include a maximum of 22 characters.
Example: “069, 2 sec. pause, 4009, 1 sec. pause, 0“:
0 6 9 P P 4 0 0 9 P 0 – (= 11 characters)
Note!
The connected modem is automatically configured when the function block
CO6 -> F04 - 1 is activated.
96
EB 5576 EN
Communication