X8 Instruction Set Reference Manual
7-6
Relay-Type (Bit) Instructions
ONSR - One Shot Rising
ONSF - One Shot Falling
Instruction Type: input
Use the ONSR and ONSF instructions to trigger an event to occur one time.
These instructions trigger an event based on a change of rung state, as follows:
• Use the OSR instruction when an event must start based on the false-to-true
(rising edge) change of state of the rung.
• Use the OSF instruction when an event must start based on the true-to-false
(falling edge) change of state of the rung.
These instructions use two parameters.
• Storage Bit: this is the bit address that store the rung state from the previous
scan.
• Output Bit: this is the bit address which is set based on a false-to-true (ONSR)
or true-to-false (ONSF) rung transition.
To re-activate the ONSR or ONSF instructions, the rung must become TRUE
or FALSE.
Parameter
Data Table
SFR
Address
Mode
Address
Level
Y
X
SR
B
TM
, CT
, CR
N
F
ST
A
L
MG, PD
RP
PS
ASCI
I
RTC
HSC
PT
O
, P
W
M
STI
EI
I
BHI
MMI
CS-C
om
ms
DLS-Data
Lo
g
Immediate
Direct
Indirect
Bit
Wo
rd
Lon
gW
ord
El
emen
t
Bit
√
√
√
√
√
ONSR Instruction Table
Rung Transition
Storage Bit
Rung State after
Execution
FALSE to TRUE (1 Scan)
Bit
Bit
TRUE to TRUE
Bit
Bit
TRUE to TRUE
FALSE to FALSE
Bit
Bit
ONSR
EN
ENO
Storage Bit
B3.0.8 -
Output Bit - Y0.0.0.3
ONSF
EN
ENO
Storage Bit
B3.0.9 -
Output Bit - Y0.0.0.4
Содержание X8 Series
Страница 1: ...Catalog Number s X8 M14DDT X8 M16DDR X8 M32DDT X8 Instruction Manual Reference Manual ...
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Страница 64: ...X8 Instruction Set Reference Manual 2 12 X8 Series PLC Memory and Data Table ...
Страница 134: ...X8 Instruction Set Reference Manual 5 38 Using the High Speed Counter and Programmable Limit Switch ...
Страница 166: ...X8 Instruction Set Reference Manual 7 8 Relay Type Bit Instructions ...
Страница 180: ...X8 Instruction Set Reference Manual 8 14 Timer and Counter Instructions ...
Страница 205: ...X8 Instruction Set Reference Manual Math Instructions 10 17 ...
Страница 206: ...X8 Instruction Set Reference Manual 10 18 Math Instructions ...
Страница 212: ...X8 Instruction Set Reference Manual 11 6 Converion Instructions ...
Страница 218: ...X8 Instruction Set Reference Manual 12 6 Logical Instructions ...
Страница 236: ...X8 Instruction Set Reference Manual 15 8 Shift and FIFO LIFO Instructions ...
Страница 242: ...X8 Instruction Set Reference Manual 16 6 Sequencing Instructions ...
Страница 252: ...X8 Instruction Set Reference Manual 18 4 Input and Output Instructions ...
Страница 280: ...X8 Instruction Set Reference Manual 20 12 PID Control ...
Страница 296: ...X8 Instruction Set Reference Manual 21 16 ASCII Instructions ...
Страница 308: ...X8 Instruction Set Reference Manual 22 12 Communications Instructions ...
Страница 312: ...Appendix A 4 System Error Code ...
Страница 313: ...Appendix B MSG Instruction Error Code MSG Instruction Error Code ...
Страница 322: ...Appendix B 10 MSG Instruction Error Code ...
Страница 325: ...ASCII Character Set Appendix C 3 ...
Страница 326: ...Publication number X8 RM001A EN September 2012 ...
Страница 327: ...Copyright 2012 RS Automation Co Ltd All rights reserved ...