Rockwell-automation 1746-HSCE2 Multi-Channel High Speed Counter Module Manual de usuario descargar pdf (Pagina 106)

Publication 1746-UM002B-EN-P - August 2004

6-14 Application Examples

Data Table for N10 File (hexidecimal)

Data Table for N11 File (decimal)

Example 4 - Using Soft

Presets

This example illustrates the use of soft presets with the Counter

Control Block. A soft preset loads the specific counter with a preset

count value. This preset value is determined by the last min/max

Count Value Block for that counter. This block is normally loaded

during HSCE2 initialization, but the preset can be changed

dynamically (as shown in Example 5).

1. The ladder logic uses the Example 2 program (SLC 5/03 or

higher processor in Class 4, mode 1).

2. The example soft presets Counter 1 whenever the soft preset

trigger bit (B3/6) sees a positive (0 to 1) transition.

3. The soft preset must wait until after the HSCE2 initialization

process is complete (B3/0 is set).

4. The Counter Configuration Block (N10:10 to N10:17) gate/preset

mode for Counter 1 must allow soft presets. In this case, N10:11

was changed from 0C (No Preset) to 1C (Soft Preset Only).

Programming Blocks Offset 0123456789

Module Setup N10:0 1 103 80000000

Counter Configuration N10:10 F02 606000000

Min/Max Count Value Counter 1 N10:20 400019000000

Min/Max Count Value Counter 2 N10:30 104 0 0 0 1F4 00000

Min/Max Count Value Counter 3 N10:40 204 0 0 0 258 00000

Min/Max Count Value Counter 4 N10:50 304 0 0 0 2BC 00000

Counter 1 Program Ranges N10:60 10 1000311000

Counter 1 Program Ranges N10:70 10 2 0 32 0 63 2000

Counter 1 Program Ranges N10:80 10 4 0 64 0 95 4000

Counter 1 Program Ranges N10:90 10 8 0 96 0 C7 8000

Counter 1 Program Ranges N10:100 10 10 0 C8 0 F9 1000

Counter 1 Program Ranges N10:110 10 20 0 FA 0 12B 2000

Counter 1 Program Ranges N10:120 10 40 0 12C 0 15D 4000

Counter 1 Program Ranges N10:130 10 80 0 15E 0 190 8000

Counter Control N10:140 80 8001 8001 8001 8001 FF00 FF 0 0 0

Offset 0123456789

N11:0 140 140 14 0 256

1 2 ... 101 102 103 104 105 106 107 108 109 110 111 ... 139 140

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Rockwell-automation 1746-HSCE2 Multi-Channel High Speed Counter Module Manual de usuario Pagina 106