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Allen-Bradley MicroLogix 1200 Reference Manual

Allen-Bradley MicroLogix 1200
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Publication 1762-RM001C-EN-P
System Status File C-9
STI Mode
STI Pending
This address is duplicated at STI:0/UIP. See Using the Selectable Timed
Interrupt (STI) Function File on page 18-12 for more information.
STI Enabled
This address is duplicated at STI:0/TIE. See Using the Selectable Timed
Interrupt (STI) Function File on page 18-12 for more information.
STI Executing
This address is duplicated at STI:0/UIX. See Using the Selectable Timed
Interrupt (STI) Function File on page 18-12 for more information.
Memory Module Program Compare
When this bit is set (1) in the controller, its user program and the memory
module user program must match for the controller to enter an executing
mode.
If the user program does not match the memory module program, or if
the memory module is not present, the controller faults with error code
0017H on any attempt to enter an executing mode.
An RTC module does not support program compare. If program compare
is enabled and an RTC-only module is installed, the controller does not
enter an executing mode.
See also: LPC - Load Program Compare on page 3-7.
Address
(1)
(1) This bit can only be accessed via ladder logic. It cannot be accessed via communications (such as a Message
instruction from another device).
Data Format Range Type User Program Access
S:2/0 binary 0 or 1 status read only
Address
(1)
(1) This bit can only be accessed via ladder logic. It cannot be accessed via communications (such as a Message
instruction from another device).
Data Format Range Type User Program Access
S:2/1 binary 0 or 1 control read/write
Address
(1)
(1) This bit can only be accessed via ladder logic. It cannot be accessed via communications (such as a Message
instruction from another device).
Data Format Range Type User Program Access
S:2/2 binary 0 or 1 control read only
Address Data Format Range Type User Program Access
S:2/9 binary 0 or 1 control read only

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Allen-Bradley MicroLogix 1200 Specifications

General IconGeneral
SeriesMicroLogix 1200
TypeProgrammable Logic Controller (PLC)
MountingDIN rail or panel mount
Programming LanguageLadder Logic
Programming SoftwareRSLogix 500
I/O PointsUp to 40
Communication PortsRS-232, RS-485
Memory6 KB user memory
Power Supply24V DC or 120/240V AC
ExpansionSupports expansion I/O modules
Operating Temperature0°C to 55°C (32°F to 131°F)
Dimensions90 mm x 110 mm
Weight0.5 kg (1.1 lbs)

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