Allen-Bradley micrologix 1500 Reference Manual

Publication 1762-RM001C-EN-P
ASCII Instructions 20-27
Entering Parameters
Enter the following parameters when programming this instruction:
•
Source A is the location of the first string used for comparison.
•
Source B is the location of the second string used for comparison.
Addressing Modes and File Types can be used as shown below:
Instruction Operation
If the string length of Source A or Source B exceeds 82 characters, the
ASCII String Manipulation Error bit (S:5/15) is set and the rung goes false.
Table 20.30 ASR Instruction Valid Addressing Modes and File Types
For definitions of the terms used in this table see Using the Instruction Descriptions on page4-2.
Parameter
Data Files
(1)
(1) The Control data file is the only valid file type for the Control Element.
Function Files
CS - Comms IOS - I/O
Address
Mode
Address
Level
O I S B T, C, R N ST L MG, PD RTC HSC PTO, PWM STI EII BHI MMI DAT TPI Immediate Direct Indirect Bit Word Long Word Element
Source A • • •
Source B •
• •

Allen-Bradley micrologix 1500 Specifications

General

Processor Type	16-bit
Programming Language	Ladder Logic
Mounting	DIN rail or panel mount
Programming Software	RSLogix 500
Communication Ports	RS-232
Power Supply	24V DC
Operating Temperature	0°C to 55°C (32°F to 131°F)
Controller Type	Programmable Logic Controller (PLC)