Rockwell Automation 1746-HSCE2 Multi-Channel High Speed Counter Module User Manual

Page 111

Publication 1746-UM002B-EN-P - August 2004

Application Examples 6-19

4. Data word N10:11 was changed from 000C (hex) to 001C (hex)

to change the Counter 1 gate/preset mode from No Presets (000)
to Soft Presets Only (001).

Ladder File 8 - HSCE2

0000

S:1

MOV

Move
Source

0 <
Dest

B3:0

0000000011000001<

MOV

Move
Source

0 <
Dest

N11:0

170 <

MOV

Fill File
Source

Dest

Length

#O:1.0

FLL

MUL

Multiply
Source A

10 <
Source B

N11:2

17 <
Dest

N11:1

170

MUL

0001

S:1

B3:0

JSR

Jump To Subroutine
SBR File Number

U:9

JSR

FIRST_PASS

HSCE2_INIT_DONE

HSCE2_ERROR

DATA_BLOCK_OFFSET

MAX_BLOCK_ADDR

#HSCE2_CFG_BLK

Prior to use, the programmer sets N11:2 to the total number of data blocks which will be entered into file N10 (not including the Counter Control
Block) and initializes the data blocks in file N10. Ten integer data blocks are used (instead of eight) to simplify the display in data windows.

The first pass of the program initializes the following values:

1. The HSCE2 initialization done bit (B3/0) is unlatched.

2. The HSCE2 error bit (B3/1) is cleared.

3. The Counter Configuration Block is cleared. Note: The init HSCE2 routine (ladder file 9) is bypassed during the first pass to ensure the
Configuration Data Block is reset prior to transfer of the first configuration data block.

While the HSCE2 is not initialized, and the HSCE2 has not errored, call the HSCE2 initialization routine.