Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Publication 1763-RM001C-EN-P - October 2009
324 ASCII Instructions
Instruction Operation
When the rung goes from false-to-true, the Enable bit (EN) is set. When
the instruction is placed in the ASCII queue, the Queue bit (EU) is set. The
Running bit (RN) is set when the instruction is executing. The Done bit
(DN) is set on completion of the instruction.
The controller determines the number of characters in the buffer and puts
this value in the POS field of the control data file. The Done bit (DN) is
then set. If a zero appears in the POS field, no characters were found. The
Found bit (FD) is set when the POS filed is set to a non-zero value
ACI - String to Integer
Instruction Type: output
Use the ACI instruction to convert a numeric ASCII string to an integer
(word or long word) value.
Entering Parameters
Enter the following parameters when programming this instruction:
• Source - The contents of this location are converted to an integer
value.
ACB Instruction Valid Addressing Modes and File Types
For definitions of the terms used in this table see Using the Instruction Descriptions on page 82.
Parameter
Data Files
(1)
Function Files
CS - Comms IOS - I/O DLS - Data Log
Address
Mode
Address Level
O I S B T, C, R N F ST L MG, PD RI/RIX PLS RTC HSC PTO, PWM STI EII BHI MMI LCD Immediate Direct Indirect Bit Word Long Word Element
Channel • •
Control •
• •
(1) The Control data file is the only valid file type for the Control Element.
ACI
String to Integer
Source ST10:0
Dest N7:0
0<
ACI
Execution Time for the ACI Instruction
Controller Data Size When Instruction Is:
True False
MicroLogix 1100 word 39.06 μs 0.87 μs
long word 41.99 μs 0.87 μs
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Allen-Bradley MicroLogix 1100 Specifications

General

Brand	Allen-Bradley
Model	MicroLogix 1100
Category	Controller
Language	English