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The GPIO 2 pin, set to input, can operate as ADC. Depending on the settings, ATM can measure current or
voltage.
Current measurement parameters:
Current measuring range, mA: 0 to 30.
Current measurement error, mA:
0.2.
Voltage measurement parameters:
Voltage measuring range, V: 0 to 40.
Voltage measurement error, V:
0.2.
Change of the measurable value (voltage/current) is considered its change by a fixation step. Fixation step is
set in the ATM Control configuration utility.
For automatic data sending to the ADC server, do the following steps in the ATM Control configuration utility:
1.
select a server for data transmission;
2.
set up the server sending mode:
by state change (measurements are performed once per second);
by period:
measurement interval:
number of measurements to be sent.
In the automatic data transmission mode ATM2 can store up to 150 last values for ADC and 2 last states af-
ter the change for digital inputs and measurement time. There is an option to exit the offline mode by the GPIO
pin state change to send data (see section
).
4.17.2. Setting Up Pins of "Output" Type
The pin set to "output" can operate in normal or inverse mode. In the normal mode the output high level (lev-
el "1") is regarded as an active signal, and the low level (level "0")
– a passive one. When enabling the inverse
mode, output high level corresponds to a passive signal, and the low level
– to an active signal.
To select an event by which the modem will produce an active or passive output signal, it is required to spec-
ify the output operation algorithm. The output operation algorithm (see 4.2) is set in the tab
Settings
Ad-
vanced
GPIO
of the ATM Control utility.
Содержание ATM2-232
Страница 1: ...Operation Manual GSM modem iRZ ATM2 232...
