Rockwell Automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM - Manual (Page 127)

Publication AG-UM008C-EN-P - February 2005
Configuring MicroLogix 1100/1200/1500 Controllers 3-59
Example Queue 0
This queue is used to show how to calculate the string length of each
record and maximum number of records.
String Length of Record
The size of a record is limited so that the length of the maximum
formatted string does not exceed 80 characters. The following table
can be used to determine the formatted string length.
For queue 0, the formatted string length is 59 characters, as shown
below:
= 10 + 1 + 8 + 1 + 6 + 1 + 11 + 1 + 6 + 1 + 6 + 1 + 6
= 59 characters
Table 3.11 Queue 0 (Date = ✔, Time = ✔, Delimeter = )
Date Time N7:11 L14:0
T4:5.AC
C
I1:3.0 B3:2
Record 0 01/10/2000 , 20:00:00 , 2315 , 103457 , 200 , 8190 , 4465
Record 1 01/10/2000 , 20:30:00 , 2400 , 103456 , 250 , 8210 , 4375
Record 2 01/10/2000 , 21:00:00 , 2275 , 103455 , 225 , 8150 , 4335
Record 3 01/10/2000 , 21:30:00 , 2380 , 103455 , 223 , 8195 , 4360
Record 4 01/10/2000 , 22:00:00 , 2293 , 103456 , 218 , 8390 , 4375
Record 5 01/10/2000 , 22:30:00 , 2301 , 103455 , 231 , 8400 , 4405
Record 6 01/10/2000 , 23:00:00 , 2308 , 103456 , 215 , 8100 , 4395
Record 7 01/10/2000 , 23:30:00 , 2350 , 103457 , 208 , 8120 , 4415
Record 8 01/11/2000 , 00:00:00 , 2295 , 103457 , 209 , 8145 , 4505
Record 9 01/11/2000 , 00:30:00 , 2395 , 103456 , 211 , 8190 , 4305
Record 10 01/11/2000 , 01:00:00 , 2310 , 103455 , 224 , 8195 , 4455
Record 11 01/11/2000 , 01:30:00 , 2295 , 103456 , 233 , 8190 , 4495
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 Date Time N7:11 L14:0 T4:5.ACC I1:3.0 I1:2.1
Characters 10 1 8 1 6 1 11 1 6 1 6 1 6