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Allen-Bradley MicroLogix 1200 Reference Manual

Allen-Bradley MicroLogix 1200
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Publication 1762-RM001C-EN-P
C-18 System Status File
Data File Overwrite Protection Lost
When clear (0), this bit indicates that at the time of the last program
transfer to the controller, protected data files in the controller were not
overwritten, or there were no protected data files in the program being
downloaded.
When set (1), this bit indicates that data has been overwritten. See User
Program Transfer Requirements on page 2-7 for more information.
See Setting Download File Protection on pag e2-6 for more information.
RTC Year
This address is duplicated in the Real-Time Clock Function File at
RTC:0.YR
.
See Real-Time Clock Function File on page 3-3 for more
information.
RTC Month
This address is duplicated in the Real-Time Clock Function File at
RTC:0.MON
.
See Real-Time Clock Function File on page 3-3 for more
information.
RTC Day of Month
This address is duplicated in the Real-Time Clock Function File at
RTC:0.DAY
.
See Real-Time Clock Function File on page 3-3 for more
information.
Address Data Format Range Type User Program Access
S:36/10 binary 0 or 1 status 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:37 word 1998 to 2097 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:38 word 1 to 12 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:39 word 1 to 31 status 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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