MTX-IND-V2 Industrial Featured GSM-GPRS terminal modem http://www.matrix.es
MTX-IND-V2 User Manual V.1.1
Page. 29
Subject to change without prior notice
Use the command AT^SRADC described in [1] to select the analog inputs ADC1_IN or ADC2_IN, to set the
measurement mode and read out the measurement results. The measured values are indicated in mV.
There is no out of range detection. Voltages beyond these limits cannot be measured:
• Underflow: Values
≤
-25mV
• Overflow: Values > 2425mV
The sample period is adjustable from 30s up to 100ms by AT^SRADC. The S&H Switch is only closed
during sample time (ts~400
μ
s).
3.7.6 Real Time Clock
The TC65i module inside of the MTX-IND-V2 contains a real time clock (RTC) to maintain accurate
timekeeping and to enable “time stamping” of messages. This is not used, if you need the internal TC65i
RTC contact
3.7.7 DAC / PWM
Terminal block #34:
There is a Digital-to-Analog Converter which can provide a PWM signal. The PWM signal can be smoothed
by an external filter. Use the AT^SWDAC command to open and configure the DAC_OUT output.
DAC_OUT
O
0.2 – 3.05V
Digital Analog Converter /
PWM signal output
3.8. Software Updates
It is possible and sometimes necessary to update the MTX-IND-V2 software.
Updates must be carried out by an approved technician.
Please contact us for details Service/Programming.
