Allen-Bradley MicroLogix 1200 Reference Manual

Publication 1762-RM001C-EN-P
I/O Configuration 1-11
Analog I/O Configuration
1769-IF4 Input Data File
For each input module, words 0 through 3 contain the analog values of
the inputs.
The bits are defined as follows:
•
SGN = Sign bit in two’s complement format.
•
Sx = General status bits for channels 0 through 3. This bit is set (1)
when an error (over- or under-range) exists for that channel.
•
Ux = Under-range flag bits for channels 0 through 3. These bits can be
used in the control program for error detection.
•
Ox = Over-range flag bits for channels 0 through 3. These bits can be
used in the control program for error detection.
1769-OF2 Output Data File
For each module, words 0 and 1 in the output data file contain the
channel 0 and channel 1 output data.
SGN = Sign bit in two’s complement format.
Word
Bit Position
15 14131211109876543210
0 SGN Analog Input Data Channel 0
1 SGN Analog Input Data Channel 1
2 SGN Analog Input Data Channel 2
3 SGN Analog Input Data Channel 3
4 not used S3 S2 S1 S0
5 U0 O0U1O1U2O2U3O3Set to 0
Word
Bit Position
15 14131211109876543210
0 SGN Channel 0 Data 0 to 32,768
1 SGN Channel 1 Data 0 to 32,768

Allen-Bradley MicroLogix 1200 Specifications

General

Series	MicroLogix 1200
Type	Programmable Logic Controller (PLC)
Mounting	DIN rail or panel mount
Programming Language	Ladder Logic
Programming Software	RSLogix 500
I/O Points	Up to 40
Communication Ports	RS-232, RS-485
Memory	6 KB user memory
Power Supply	24V DC or 120/240V AC
Expansion	Supports expansion I/O modules
Operating Temperature	0°C to 55°C (32°F to 131°F)
Dimensions	90 mm x 110 mm
Weight	0.5 kg (1.1 lbs)