Allen-Bradley MicroLogix 1200 User Manual

Publication 1762-UM001D-EN-P - March 2004
Troubleshooting Your System C-5
Critical and Non-Critical Errors
Non-critical module errors are recoverable. Channel errors (over-range
or under-range errors) are non-critical. Non-critical error conditions
are indicated in the module input data table. Non-critical configuration
errors are indicated by the extended error code. See Table C.5 on
page C-7.
Critical module errors are conditions that prevent normal or
recoverable operation of the system. When these types of errors
occur, the system leaves the run mode of operation. Critical module
errors are indicated in Table C.5 on page C-7.
Module Error Definition Table
Analog module errors are expressed in two fields as four-digit Hex
format with the most significant digit as “don’t care” and irrelevant.
The two fields are “Module Error” and “Extended Error Information”.
The structure of the module error data is shown below.
Table C.3 Module Error Table
“Don’t Care” Bits Module Error Extended Error Information
1514131211109876543210
0000000000000000
Hex Digit 4 Hex Digit 3 Hex Digit 2 Hex Digit 1

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)