Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Publication 1763-RM001C-EN-P - October 2009
System Status File 487
RTC Seconds
This address is duplicated in the Real-Time Clock Function File at
RTC:0.SEC
. SeeReal-Time Clock Function File on page 51 for more
information. Note: This value will not update while viewing online in
RSLogix 500. Monitor address in function file to see online values.
RTC Day of Week
This address is duplicated in the Real-Time Clock Function File at
RTC:0.DOW
. SeeReal-Time Clock Function File on page 51 for more
information. Note: This value will not update while viewing online in
RSLogix 500. Monitor address in function file to see online values.
OS Catalog Number
This register identifies the Catalog Number for the Operating System in
the controller.
OS Series
This register identifies the Series letter for the Operating System in the
controller.
Address
(1)
(1) This word 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:42 word 0 to 59 status read only
Address
(1)
(1) This word 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:53 word 0 to 6 status read only
Address Data Format Range Type User Program Access
S:57 word 0 to 32,767 status read only
Address Data Format Range Type User Program Access
S:58 ASCII A to Z status read only
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Allen-Bradley MicroLogix 1100 Specifications

General

Processor	32-bit
Programming Software	RSLogix 500
Mounting	DIN rail or panel mount
Power Supply	24V DC
Type	Compact PLC
Digital Inputs	12
Digital Outputs	8
Analog Inputs	4 (depending on model)
Analog Outputs	Optional with expansion module
Programming Language	Ladder Logic
Operating Temperature	0 to 55 °C (32 to 131 °F)
Series	MicroLogix