Horner-apg QX651 OCS Manuel d'utilisateur télécharger pdf (Page 38)

CH. 8 MAN0798-04-EN

August 20, 2009 Page 38 of 95 ECN # 979

8.5 QX Register Mapping

Note: Unlike a typical OCS, you can assign registers for the high speed feature in the QX.

Table 8.4 – I/O Register Map for QX High Speed (BP43 Required)

Starting Analog In

Default Reference

Offset with Respect to

Analog In field

Function

%AI0385-0386 Offset 0 and Offset 1

Counter/Frequency Accumulator for

CNT 1

%AI0387 Offset 2 Accumulator for CNT 2

%AI0389-0390 Offset 3 and Offset 4 Latch Register for CNT 1

Starting Analog Out

Default Reference

Offset with Respect to

Analog Out field

Function

%AQ0385-0386 Offset 0 and Offset 1 PreLoad Register for CNT 1

%AQ0387-0390 Offset 2 and Offset 3 Reserved

%AQ0391 Offset 4 Out 1 Duty Cycle (0 to 32000)

%AQ0392 Offset 5 Out 2 Duty Cycle (0 to 32000)

%AQ0393 Offset 6

Out 1 Frequency (0 to 65,535) Zero is

manual output control

%AQ0394 Offset 7

Out 2 Frequency (0 to 65,535) Zero is

manual output control

Starting Digital In

Default Reference

Offset with Respect to

Digital In field

Function

%I1537-1539 Offset 0 and Offset 1,

External input states

%I1540 Offset 3 Overflow status flag for CNT 1

%I1541 Offset 4 Underflow status flag for CNT 1

Starting Digital Out

Default Reference

Offset with Respect to

Digital Out field

Function

%Q1537 Offset 0 Latch trigger for CNT 1

%Q1538 Offset 1 Preload trigger for CNT 1

%Q1539 Offset 2 Clear trigger for CNT 1

%Q1540 Offset 3 Preload disable for CNT 1 (1-Disable)

%Q1541 Offset 4 Counter disable for CNT 1

%Q1542 Offset 5 Latch disable for CNT 1 (1-Disable)

%Q1543 Offset 6 Underflow/overflow reset (1-Reset)

%Q1544 Offset 7 Counter Direction for CNT 1 (1-Up)

%Q1545 Offset 8 Clear trigger for CNT 2

%Q1546 Offset 9 Counter disable for CNT 2 (1-Disable)

%Q1547 Offset 10 Counter direction for CNT 2 (1-Up)

8.5.1 PWM Examples

Example 1

To get a 50% Duty Cycle @ 10 kHz waveform:

Set %AQ391 = 16,000

Set %AQ393 = 10,000

*Note: This output will appear on both the TTL

OUT1 output pin and the 24VDC OUT1 output

pin.

Example 2

To get a 25% Duty Cycle @ 1 kHz waveform:

Set %AQ392 = 8,000

Set %AQ394= 1,000

*Note: This output will appear on both the TTL

OUT2 output pin and the 24VDC OUT2 output

pin.

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 94 95

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Horner-apg QX651 OCS Manuel d'utilisateur Page 38

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