Secutech Radio modules ST002039 Data Sheet
Product codes
ST002039
Security & Electronic Technologies GmbH
Seite 19
If you are working with a hydrostatic probe, the displayed volume is indepen-
dent from temperature. However, the displayed liquid level is only valid at the
same temperature at which the tank table was created. This is usually 15 ° C.
The system is basically limited only by the software to 100 tanks. For local
tanks (directly controlled by radio from the PC), the tanks are permanently
polled (about 4 tanks per second). If you have installed 100 local tanks, the
update rate is about 25 seconds, at 4 local tanks, 1 second.
Far away tanks can be joined to islands via modem. I.e. one SD (1)232L on a
far away tank farm can theoretically control up to 100 tanks there.
The PC-Program can theoretically control up to 100 far away tank farms.
The limit of the system is to have at maximum 100 tanks in one system. If
you need more tanks, a special software can be developed.
Limit examples: You can define 100 different far away tank farms, each of
them with one tank. Also you can define one far away tank farm with 100
tanks.
The modem connection is established depending on the setting once a day
or once per hour. This is not a SMS or GPRS technology, but a normal call
set-up with data exchange.
In this case you have only costs for the call on the central (on the PC side)
and not on the remote tank farms, because the central will call the other sta-
tions.
In principle, every line modem or GSM modem can be used with AT com-
mand set. To ensure reliable operation, we recommend the use of industrial
grade modems.
dent from temperature. However, the displayed liquid level is only valid at the
same temperature at which the tank table was created. This is usually 15 ° C.
The system is basically limited only by the software to 100 tanks. For local
tanks (directly controlled by radio from the PC), the tanks are permanently
polled (about 4 tanks per second). If you have installed 100 local tanks, the
update rate is about 25 seconds, at 4 local tanks, 1 second.
Far away tanks can be joined to islands via modem. I.e. one SD (1)232L on a
far away tank farm can theoretically control up to 100 tanks there.
The PC-Program can theoretically control up to 100 far away tank farms.
The limit of the system is to have at maximum 100 tanks in one system. If
you need more tanks, a special software can be developed.
Limit examples: You can define 100 different far away tank farms, each of
them with one tank. Also you can define one far away tank farm with 100
tanks.
The modem connection is established depending on the setting once a day
or once per hour. This is not a SMS or GPRS technology, but a normal call
set-up with data exchange.
In this case you have only costs for the call on the central (on the PC side)
and not on the remote tank farms, because the central will call the other sta-
tions.
In principle, every line modem or GSM modem can be used with AT com-
mand set. To ensure reliable operation, we recommend the use of industrial
grade modems.