Delta Tau GEO MACRO DRIVE User Manual download pdf (Page 112)

Geo MACRO Drive User Manual

100 Setting Up Discrete Inputs and Outputs

Ring Break Output indicator MS{node},MI13

In case of a ring break error, MI13 controls the Geo MACRO output lines and only as a safety feature.

Choose what the output state would be in a ring break situation, High (12-24V) or Low (GND) for each

individual output, depending on sinking or sourcing setup. Default MI13 equals 0, so in case of ring

break, all outputs are turned off (version 1.005 and above).

Output In Case Of Ring Break Error

Output n is enabled

(True)

MS{node},MI13 - Bit Value

GP OUT n COL* GP OUT n EMT**

0 12-24V 0V

Output 1 1

1 0V 12-24V

0 12-24V 0V

Output 2 2

1 0V 12-24V

0 12-24V 0V

Output 3 3

1 0V 12-24V

0 12-24V 0V

Output 4 4

1 0V 12-24V

*COM EMT (pin10) is wired to GND and pin 9 (COM COL) is let floating

**COM COL (pin 9) is wired to 12-24V and pin 10 (COM EMT) is let floating

Setting up the Analog Inputs (X6 and X7)

The MACRO Geo Drive can be ordered with two analog to digital converters (option 3/4/5). These A/D

converters are 16-bit devices that are ready to be used without any software setup. Delta Tau uses the

Burr Brown ADS8343 for this circuit.

The analog signals for analog input #1 are wired in to pins 5 (ADC1+) and 9 (ADC1-) of X6, and for

analog input #2 into pins 5 (ADC2+) and 9 (ADC2-) of X7.

When selected for bipolar mode, differential inputs allow the user to apply input voltages to ±10 volts

(20V p-p). When selected for unipolar mode, the user can apply input voltages from 0V to +10V (the

negative input ADCn- must be grounded).

To read the A/D data from the MACRO device, create the M-variable definitions to the node associated

with the MACRO device. The data is transferred into the upper 16-bits of the MACRO IO node

registers. For example, if the Geo MACRO Drive is associated with node 2, then make the following M-

variable assignment:

Unipolar

The data received is an unsigned 16-bit number scaled from 0V to +10V (0cts to 32767cts).

M3004->X:$78421,8,16,u ;ADC0 upper 16 bits of IO Node 2 word1

M3005->X:$78422,8,16,u ;ADC1 upper 16 bits of IO Node 2 word2

Bipolar

The data received is a signed 16-bit number scaled from –10V to +10V (-32767cts to 32767cts).

M3004->X:$78421,8,16,S ;ADC0 upper 16 bits of IO Node 2 word1

M3005->X:$78422,8,16,S ;ADC1 upper 16 bits of IO Node 2 word2

This example also assumes that the IO nodes are activated at both the MACRO Peripheral Device (Slave)

and at the Turbo Ultralite/UMAC (Master).

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Delta Tau GEO MACRO DRIVE User Manual Page 112

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