Siemens AC75 Atswdac Configure and Read PWM Signal for DAC, Atswdac=?, Atswdac?, Swdac dc, oc, fq

AC75 AT Command Set

19.9 AT^SWDAC

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19.9AT^SWDAC Configure and Read PWM Signal for DAC

The AT^SWDAC controls the PWM (Pulse Width Modulation) signals generated by means of the DAC_OUT pin of the AC75 Module. The DAC_OUT pin is not available on the the AC75 Terminal, therefore AT^SWDAC applies only to the AC75 Module.

Syntax

Test Command

AT^SWDAC=?

Response(s)

^SWDAC:(list of supported <dc>s), (list of supported <oc>s), (list of supported <fq>s)

OK

Read Command

AT^SWDAC?

Response(s)

^SWDAC: <dc>, <oc>, <fq>

OK ERROR

+CME ERROR: <err>

Write Command

AT^SWDAC=<dc>[, <oc>[, <fq>]]

Response(s)

OK ERROR

+CME ERROR: <err>

Reference(s)

SIEMENS

PIN ASC0 ASC1 USB MUX1 MUX2 MUX3 Charge 4 Last

- + + + + + + - + -

Parameter Description

<dc>(num)

Duty cycle in percentage steps 0...100

<oc>(num)

Open or close DAC
0	Close DAC
1	Open DAC
<fq>(num)
PWM frequency
0	320	Hz (accuracy of 1 percentage step)
1	970	Hz (accuracy of 3 percentage steps)
2	8,125 Hz (accuracy of 1 percentage step)
3	16,250 Hz (accuracy of 1 percentage step)

AC75_ATC_V01.002	Page 506 of 569	10/30/06
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