Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Publication 1763-RM001C-EN-P - October 2009
436 Recipe and Data Logging
For queue 5, the formatted string length is 29 characters, as shown below:
= 8 + 1 + 6 + 1 + 6 + 1 + 6 = 29 characters
Number of Records
Using Queue 5 as an example, each record consumes:
Each record consumes 10 bytes. So if only one queue was configured, the
maximum number of records that could be stored would be 13107. The
maximum number of records is calculated by:
Maximum Number of Records = Data Log File Size/Record Size
= 128K bytes/10 bytes
= (128)(1024)/10
= 13107 records
Data Memory Consumed Formatted String Size
delimiter 0 bytes 1 character
word 2 bytes 6 characters
long word 4 bytes 11 characters
date 2 bytes 10 characters
time 2 bytes 8 characters
Data Time N7:11 I1:3.0 I1:2.1
Characters 8 1 6 1 6 1 6
Record Field Memory Consumption
Time 2 bytes
N7:11 2 bytes
I1:3.0 2 bytes
I1:2.1 2 bytes
Integrity Check 2 bytes
Total 10 bytes
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Allen-Bradley MicroLogix 1100 Specifications

General

Processor	32-bit
Programming Software	RSLogix 500
Mounting	DIN rail or panel mount
Power Supply	24V DC
Type	Compact PLC
Digital Inputs	12
Digital Outputs	8
Analog Inputs	4 (depending on model)
Analog Outputs	Optional with expansion module
Programming Language	Ladder Logic
Operating Temperature	0 to 55 °C (32 to 131 °F)
Series	MicroLogix