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Allen-Bradley MicroLogix 1400 User Manual

Allen-Bradley MicroLogix 1400
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255 Publication 1766-RM001A-EN-P - October 2008
Chapter
13
Logical Instructions
The logical instructions perform bit-wise logical operations on individual
words.
Using Logical
Instructions
When using logical instructions, observe the following:
• Source and Destination must be of the same data size (i.e. all words
or all long words).
• Source A and Source B can be a constant or an address, but both
cannot be constants.
• Valid constants are -32768…32767 (word) and
-2,147,483,648…2,147,483,647 (long word).
Instruction Used To: Page
AND - Bit-Wise AND Perform an AND operation 257
OR - Logical OR Perform an inclusive OR operation 258
XOR - Exclusive OR Perform an Exclusive Or operation 259
NOT - Logical NOT Perform a NOT operation 260
IMPORTANT
Do not use the High Speed Counter Accumulator (HSC.ACC) for the
Destination parameter in the AND, OR, and XOR instructions.
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Allen-Bradley MicroLogix 1400 Specifications

General IconGeneral
Processor32-bit
Expansion ModulesUp to 7 expansion I/O modules
Power Supply24V DC or 120/240V AC
Programming SoftwareRSLogix 500
Communication PortsEthernet, RS-232/RS-485 combo port
Controller TypeProgrammable Logic Controller (PLC)
SeriesMicroLogix
Digital Outputs12
Analog Inputs6 (embedded)
Analog Outputs2 (embedded)
High-Speed Counter6 high-speed counters
Pulse Output2 (embedded)
Ethernet PortYes

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