Allen-Bradley MicroLogix 1200 Reference Manual

Publication 1762-RM001C-EN-P
I/O Configuration 1-5
Analog I/O Configuration
1762-IF2OF2 Input Data File
For each input module, slot x, words 0 and 1 contain the analog values of
the inputs. The module can be configured to use either raw/proportional
data or scaled-for-PID data. The input data file for each configuration is
shown below.
The bits are defined as follows:
•
Sx = General status bits for channels 0 and 1. This bit is set when an
error (over- or under-range) exists for that channel, or there is a
general module hardware error.
•
Ox = Over-range flag bits for channels 0 and 1. These bits can be used
in the control program for error detection.
•
Ux = Under-range flag bits for channels 0 and 1. These bits can be
used in the control program for error detection.
Table 1.1 Raw/Proportional Format
Word
Bit Position
1514131211109876543210
0 0 Channel 0 Data 0 to 32768 0 0 0
1 0 Channel 1 Data 0 to 32768 0 0 0
2reserved
3reserved
4reserved S1S0
5 U0O0U1O1reserved
Table 1.2 Scaled-for-PID Format
Word
Bit Position
1514131211109876543210
0 0 0 Channel 0 Data 0 to 16,383 0 0
1 0 0 Channel 1 Data 0 to 16,383 0 0
2 reserved
3 reserved
4 reserved S1 S0
5 U0O0U1O1reserved

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)