reset memory to fac/set
Application Note
A16851 - Clearing password protected Micrologix & SLC500 processors
Last Modified: 10/02/2001
Previously Released as #10734
General Category: s Programmable Controllers
Product(s): SLC500 (1747); MicroLogix (1761); MicroLogix 1200 (1762); MicroLogix 1500 (1764); MicroLogix 1500 (1764)
Catalog #: 1747L20A; 1747L20B; 1747L20C; 1747L20D; 1747L20E; 1747L20F; 1747L20G; 1747L20L; 1747L20N; 1747L20P; 1747L20R; 1747L30A; 1747L30B; 1747L30C; 1747L30D; 1747L30L; 1747L30P; 1747L40A; 1747L40B; 1747L40C; 1747L40E; 1747L40F; 1747L40L; 1747L40P; 1747L511; 1747L514; 1747L524; 1747L531; 1747L532; 1747L541; 1747L542; 1747L542P; 1747L543; 1747L551E; 1747L552E; 1747L553E; 1761L16AWA; 1761L16BBB; 1761L16BWA; 1761L16BWB; 1761L20AWA-5A; 1761L20BWA-5A; 1761L20BWB-5A; 1761L32AAA; 1761L32AWA; 1761L32BBB; 1761L32BWA; 1761L32BWB; 1762L24AWA; 1762L24BWA; 1762L40AWA; 1762L40BWA; 1764LDP; 1764LRP; 1764LSP
Series / Revision:
Subject (Keyphrases): configuration, instructions
Summary of Technote Information:
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The following procedure can be used to restore defaults to a Micrologix or SLC-500 processor
when the software requests a password. RSLOGIX 500 v3.01.09.02 or greater must be
used. APS and AI 500 software do not support this procedure.
NOTE: By following this procedure the program in the
Processor will be erased.
1) When prompted for the password enter MLCLRMEM , using the keypad of a
telephone you must translate this into its numeric equivalent of " 65257636 "
2) You will be prompted to confirm the clearing of the processor ladder logic program.
3) Once this is confirmed the processor will return to a default
( Out of the Box ) state with it's default program.
The software will then return offline to it's default screen.
Manuals can be viewed, printed, and ordered online at
http://www.theautomationbookstore.com/
Related Links:
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