Allen-Bradley MicroLogix 1400 User Manual

5 Publication 1766-RM001A-EN-P - October 2008
Table of Contents
Summary of Changes
Firmware Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Preface
Who Should Use this Manual . . . . . . . . . . . . . . . . . . . . . . . . . 13
Purpose of this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Common Techniques Used in this Manual. . . . . . . . . . . . . . . . 13
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Rockwell Automation Support . . . . . . . . . . . . . . . . . . . . . . . . 14
Chapter 1
I/O Configuration Embedded I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
MicroLogix 1400 Expansion I/O . . . . . . . . . . . . . . . . . . . . . . . 17
MicroLogix 1400 Expansion I/O Memory Mapping. . . . . . . . . . 18
I/O Addressing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
I/O Forcing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Input Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Latching Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Configure Expansion
I/O Using RSLogix 500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Chapter 2
Controller Memory and File
Types
Controller Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Data Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Protecting Data Files During Download. . . . . . . . . . . . . . . . . . 47
Static File Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Password Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Clearing the Controller Memory . . . . . . . . . . . . . . . . . . . . . . . 51
Allow Future Access Setting (OEM Lock). . . . . . . . . . . . . . . . . 52
Web View Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
LCD Edit Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Chapter 3
Function Files Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Real-Time Clock Function File . . . . . . . . . . . . . . . . . . . . . . . . 57
RTA - Real Time Clock Adjust Instruction . . . . . . . . . . . . . . . . 59
Memory Module Information Function File . . . . . . . . . . . . . . . 60
Base Hardware Information Function File . . . . . . . . . . . . . . . . 62
Communications Status File . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Ethernet Communications Status File. . . . . . . . . . . . . . . . . . . . 80
Input/Output Status File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Chapter 4
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Allen-Bradley MicroLogix 1400 Specifications

General

Processor	32-bit
Expansion Modules	Up to 7 expansion I/O modules
Power Supply	24V DC or 120/240V AC
Programming Software	RSLogix 500
Communication Ports	Ethernet, RS-232/RS-485 combo port
Controller Type	Programmable Logic Controller (PLC)
Series	MicroLogix
Digital Outputs	12
Analog Inputs	6 (embedded)
Analog Outputs	2 (embedded)
High-Speed Counter	6 high-speed counters
Pulse Output	2 (embedded)
Ethernet Port	Yes