Allen-Bradley MicroLogix 1400 User Manual

Rockwell Automation Publication 1766-UM001I-EN-P - June 2015 105
Using the LCD Chapter 5
10. Now, we will view an example of the data value of a protected property. If
LCD Edit Disable is set to checked (enable), the “Protected!” message will
be displayed and this data file cannot be edited by the LCD.
11. Try to move the cursor to the data value position by pressing the OK key.
Because the N7:0 word is protected, you will find that the cursor even does
not move to the data value position.
12. If you have finished monitoring the integer file N7, press the ESC key to
return to the Main Menu screen, as shown in step 2.
Monitoring Double Integer files
The LCD allows you to view and change the data value of a double integer file.
You can access to this functionality via the Monitoring screen of the LCD.
To monitor a double integer file on the LCD, you have to specify its file number
in the Target User Defined File Number (TUF) element of the LCD Function
IMPORTANT
The maximum range of words you can monitor with the Integer File
Monitoring functionality on the LCD is the first 256 words (0…255) of
the target integer file.

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