Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

427 Publication 1763-RM001C-EN-P - October 2009
Chapter 21
Recipe and Data Logging
This chapter describes how to use the Recipe and Data Logging functions.
RCP - Recipe
Instruction Type: output
The RCP file allows you to save custom lists of data associated with a
recipe. Using these files along with the RCP instruction lets you transfer a
data set between the recipe database and a set of user-specified locations
in the controller file system.
The recipe data is stored in Data Log Queue memory.
This section contains the following topics:
• Recipe File and Programming Example on page 428
• Example Queue 0 on page 434
• Example Queue 5 on page 435
• Retrieval Tools on page 442
• Information for Creating Your Own Application on page 443
The following reasons may help you choose which type of memory to
use:
• All the recipe data is stored into the controller’s memory module.
Because the recipe data is stored in Data Log Queue memory, it
does not consume user program space.
• If you are not using the data logging function, it allows you more
memory (up to 64K bytes) for RCP files. You can use the Data Log
Queue for data logging and recipe data, but the total cannot exceed
128K bytes.
Execution Time for the RCP Instruction
Controller Operation When Rung Is:
True False
MicroLogix 1100 Load 23.7 μs + 1.7 μs/word
+ 3.3 μs/long word or floating point
0.8 μs
Store 25.2 μs + 2.4 μs/word
+ 4.4 μs/long word or floating point
0.8 μs
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Allen-Bradley MicroLogix 1100 Specifications

General

Brand	Allen-Bradley
Model	MicroLogix 1100
Category	Controller
Language	English