Pulse Outputs

Section 7-6

Turned ON by STIM

 

instruction execution.

Turned OFF by hardware.

ON

 

One-shot pulse output

 

OFF

 

Setting units: Select 0.01 ms, 0.1 ms, or 1 ms.

Setting range: 0001 to 270F Hex (1 to 9,999)

Set the pulse output operation mode to 1 shot in advance in the System

Setup, as shown in the following table.

Tab page

Function

Setting

 

 

 

Pulse Output

Pulse Output 1 Operation mode

1 shot (one-shot pulse output)

 

 

 

 

Pulse Output 2 Operation mode

1 shot (one-shot pulse output)

 

 

 

Note A pulse output port that is being used for one-shot pulse outputs cannot be used for any other pulse output functions.

The elapsed time of the one-shot pulse output is stored in 8-digit hexadecimal in words A621 and A620 (pulse output 1) or A623 and A622 (pulse output 2). When the one-shot pulse output is turned ON, the content of the correspond- ing words is set to 0000 0000 hex and the content is incremented as time passes. The final value is retained when the one-shot output is turned OFF.

Word

Bits

Function

 

Contents

 

 

 

 

 

A620

00 to 15

Elapsed time

Lower

Contains the elapsed time of the

 

 

of One-shot

4 digits

one-shot pulse output in 8-digit hexa-

 

 

pulse output 1

 

decimal.

A621

00 to 15

Upper

 

The content can range from 0000 0000

 

 

 

4 digits

 

 

 

 

to 0000 270F hex, and the units are set

 

 

 

 

to 0.01 ms, 0.1 ms, or 1 ms with the

 

 

 

 

STIM(980) instruction.

 

 

 

 

Note These words are refreshed dur-

 

 

 

 

ing the Motion Control Module’s

 

 

 

 

I/O refreshing.

 

 

 

 

 

A622

00 to 15

Elapsed time

Lower

These words function just like the

 

 

of One-shot

4 digits

words for pulse output 1, described

 

 

pulse output 2

 

above.

A623

00 to 15

Upper

 

 

 

 

 

4 digits

 

 

 

 

 

 

One-shot Pulse Output Specifications

Item

Specification

 

 

Pulse ON time

0.01 to 9,999 ms (Can be set with the STIM(980) instruction.)

 

 

Operating conditions

1. Set the pulse output operation mode to 1 shot in the System

 

Setup.

 

2. Execute the STIM(980) instruction with operand C1 = #0001

 

or #0002.

 

 

Response time

Response time when the STIM(980) instruction is executed at

 

the beginning of an interrupt task:

 

0.2 ms max. from the generation of the interrupt until the

 

one-shot pulse output goes ON

 

 

177

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Omron FQM1-MMP21, FQM1-CM001 One-shot Pulse Output Specifications, Tab Function Setting, Word Bits Function Contents