Allen-Bradley MicroLogix 1400 User Manual

138 Rockwell Automation Publication 1766-UM001I-EN-P - June 2015
Chapter 5 Using the LCD
6. The usual method for using a memory module is to reuse the device. Select
Reuse Device or Write Only by pressing the Up or Down keys.
7. This screen appears if the save is complete. Press the OK key to go back to
executing mode.
IMPORTANT
Once set to Write Only mode, write protection cannot be removed. If a
change is required, use a different memory module. For more
information on this, refer to the chapter of Memory Module operation.
Once Write Only is set, write protection cannot be removed. A change
cannot be made to the control program stored in a write protected
memory module. If a change is required, use a different memory
module.
For more information on transferring data to and from memory
modules, see Memory Module Operation on page 148.

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