INSYS EDGE 5.0 Series, Manual

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INSYS GPRS/EDGE 5.0 serial FAQ
95
Problem: Possible cause: Remedy
The remote terminal (IP
address or URL) can not be
reached. Use another remote terminal for testing
purposes. Manually select
ATD<ip>:<port>
or
ATD“<domain>“:<port>
You may also use the URL
„
www.insys-tec.de“:80
as
remote terminal. (see also Chapter 4.5
– Installation – No. 16)
The virtual COM port from
INSYS should be used. The
device can not be accessed
via the virtual COM port. The virtual COM port is not
activated. Check the settings for the virtual COM
port driver on the tab “Serial/Vcom”.
GPRS dialup fails; output
NO CARRIER or ERROR. Error during interplay be-
tween engine and network. Completely terminate the GPRS connec-
tion, use the command
ATCGATT=0
.
A GPRS dialup may fail. As a
symptom, a new GPRS
dialup will generate the
response NO CARRIER or
ERROR. The extended error
message
(AT+CMEE=2
)
displays the text "unspeci-
fied GPRS error". This state
may end after a few sec-
onds or minutes, or last
longer.
The reason is unknown and
is most probably due to
some error in the interplay
between the engine and the
network, or directly in the
network.
A counter for dialling attempts is set via
the commands
AT**LLWAITRST
and
AT**TCPLISTENWAITRST
. By de-
fault, the counters are set to 255 and
mirror the currently known behaviour:
With each failure, only the redialling time
period is extended 20s, 80s, 320s, 640s,
1280s, 3600s, 3600s, 3600s,.....). If, for
example, is set, then the device is re-
started after the third dialup attempt (20
+ 80 + 320 s) and the dialling cycle re-
starts.
This function may be used to increase the
availability. Faster performed dialling
attempts may also incur higher costs.
How to recognize if data is
transmitted via an EDGE-
connection? --- Display the cell information table using
the command
AT^SMONG
and check the
value in column G:
G
0 GPRS / EDGE not possible
1 GPRS usage possible
2 GPRS is used
3 EDGE usage possible
4 EDGE is used