Publication 1766-RM001A-EN-P - October 2008
Relay-Type (Bit) Instructions 171
Addressing Modes and File Types can be used as shown in the following
table:
ONS - One Shot
Instruction Type: input
ATTENTION
In the event of a power loss, any OTL controlled bit (including field devices)
energizes with the return of power if the OTL bit was set when power was
lost.
ATTENTION
Under error conditions, physical outputs are turned off. Once the error
conditions are cleared, the controller resumes operation using the data
table value.
OTL and OTU Instructions Valid Addressing Modes and File Types
For definitions of the terms used in this table see Using the Instruction Descriptions on page 92.
Parameter
Data Files
Function Files
(1)
CS - Comms
IOS - I/O
DLS - Data Log
Address
Mode
(2)
Address Level
O
I
S
B
T, C, R
N
F
ST
L
MG, PD
RI/RIX
PLS
RTC
HSC
PTOX, PWMX
STI
EII
BHI
MMI
LCD
Immediate
Direct
Indirect
Bit
Word
Long Word
Element
Operand Bit • • • • • • • • • • • • • • • ••
(1) PTOX and PWMX files are only for use with MicroLogix 1400 BXB or BXBA unit.
(2) See Important note about indirect addressing.
IMPORTANT
You cannot use indirect addressing with: S, MG, PD, RTC, HSC, PTOX,
PWMX, STI, EII, BHI, MMI, CS, IOS, LCD, and DLS files.
ONS
N7:1
0
Execution Time for the ONS Instructions
Controller When Rung Is:
True False
MicroLogix 1400 0.2776 µs 0.3110 µs
efesotomasyon.com - Allen Bradley,Rockwell,plc,servo,drive
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