Delta Tau PMAC2 User Manual download pdf (Page 20)

Turbo PMAC2 Eth Ultralite Manual

HARDWARE SETUP

Single-Ended Signal

+10VDC

-10VDC

GND on the analog

signal si de

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Differential Signal

Differential

Signal 2

Differential

Signal 1

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To read the value of the ADCs, make sure the correct strobe word is written to the ADCs. The

ADC values can be read using M-variables with the following definitions:

Option 12 : 12 bit Analog to Digital Option:

I6806=$1FFFFF

M63->Y:$078406,8,8 ; Data type control SEL0 to SEL7

M63=$0;

M1001->Y:$78415,8,12,S

M1002->Y:$78416,8,12,S

Digital-to-Analog Connection

The Digital-to-Analog output has a range of ±10VDC and can source 20mA current. The

output signal is in differential mode and can be used as either differential or single-ended mode.

DAC-

DAC+

GND

Digital to Analog Output Wiring

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To write into the DAC output:

I6816=0 ;set the channel output type to PWM output

M1005->Y:$78414,8,16,S

By changing the value of M1005 in a range of ±I6800, you can have ±10VDC output on your

DAC output.

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Delta Tau PMAC2 User Manual Page 20