Quatech INTERBUS S manual Formation of on/off times, Pulsewidth Module

Formation of on/off times

The programming of the on/off times occur with the resolution of 10 bits. The five LSB of the 16 bit value can be zeros or one. The MSB will hold the sign and is preset to the null state.

Duty Cycle	Increments
%
100	1023
100	1023
50	511
25	255
12.5	127
0.1955	2
0.0977	1
0	0
0	0

Table 1: Value Formation

Binary

Value

0111 1111 1111 1111

0111 1111 1111 0000

0011 1111 1111 1111

0001 1111 1111 1111

0000 0001 0000 0000

0000 0000 0100 0000

0000 0000 0010 0000

0000 0000 0001 1111

0000 0000 0000 0000

Hex.

7F FF

7F E0

3F FF

1F FF

0100

0040

0020

001F

0

Dec.

32767

32752

16383

8191

256

16

32

31

0

0%

24V

0V	t
24V	50%
0V	t

24V	25%
0V	t
24V	100%

0V

t

Ill. 1: On/Off time relationships for Table 1.

Pulsewidth￿￿￿￿￿￿￿￿Module 750-511 3

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