D-30, Bit and word instructions – Rockwell Automation 1785-Lxxx Enhanced and Ethernet PLC-5 Programmable Controllers User Manual

Page 330

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Publication 1785-UM012D-EN-P - July 2005

D-30 Instruction Set Quick Reference

Bit and Word Instructions

Category

Code

Title

Execution Time (

µ

s) Integer

Execution Time
(

µ

s)

Floating Point

Words of
Memory

(1)

True

False

True

False

Relay

XIC

examine if closed

.32

.16

1

(2)

XIO

examine if open

.32

.16

1

2

OTL

output latch

.48

.16

1

2

OTU

output unlatch

.48

.16

1

2

OTE

output energize

.48

.48

1

2

Branch

branch end

.16

.16

1

next branch

1

branch start

1

Timer and Counter TON

timer on(0.01 base)

(1.0 base)

3.8

4.1

2.6

2.5

2-3

TOF

timer off(0.01 base)

(1.0 base)

2.6

2.6

3.2

3.2

2-3

RTO

retentive timer on
(0.01 base)
(1.0 base)

3.8

4.1

2.4

2.3

2-3

CTU

count up

3.4

3.4

2-3

CTD

count down

3.3

3.4

2-3

RES

reset

2.2

1.0

2-3

(1)

Use the larger number for addresses beyond 2048 words in the controller’s data table.

(2)

For every bit address above the first 256 words of memory in the data table, add 0.16

µ

s and 1 word of memory.

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