Operation Time Log - Aerco BENCHMARK 2500DF User Manual

9.4.2 Operation Time Log

The Operation Time Log consists of a string of ASCII records stored in non-volatile memory within the C-
More Control Panel. Events such as power-up, ignition and turn-off are time stamped. Data logged while
the unit is running are run-length encoded. Data is logged or the run-length incremented every 30
seconds. For a new run record to be logged, the fire rate or flame strength must change by more than
5%, or the run mode must change. At steady-state, the run-length is allowed to reach a maximum of 30
minutes before the record is logged. This means that no more than 30 minutes of data can be lost if the
unit loses power. Table 9-2 shows a sample Operation Time Log for a boiler:
The Operation Time Log can only be accessed through the RS232 interface using a laptop or other
terminal device. Ten operation time records are displayed for each T command entry. The operation time
log can be cleared ONLY by factory authorized personnel using the Clear Log option in the Factory menu.
Table 9-2: Sample Operation Time Log Display
Status
Off, Direct Drive
Run, Direct Drive
Run, Direct Drive
Run, Direct Drive
Run, Direct Drive
Ignition
Off, Switch
Run, Manual
Ignition
Power-up
The Sensor (S) Log can store up to 1200 records. Therefore, to
view the most recently logged record, enter "S" followed by 0
(zero) and then press Enter (i.e. S0 <Enter>). To view earlier
records in reverse chronological order, enter S and press Enter.
To go back 200 or 700 records, enter S200 or S700, etc. and
press Enter.
OMM-0099_0A
GF-145
Benchmark 2500DF-3000DF
CHAPTER 9. RS232 COMMUNICATION
Fire Rate Flame
0 0
38 100
31 100
35 100
29 100
0 0
0 0
40 100
0 0
0 0
NOTE
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
Run Length Date
8 1/15/02
34 1/15/02
30 1/15/02
2 1/15/02
0 1/15/02
0 1/15/02
35 1/15/02
0 1/15/02
0 1/15/02
0 1/15/02
Time
2:35pm
2:27pm
1:53am
1:23pm
1:21pm
1:20pm
12:30pm
11:55am
11:55am
11:50am
Page 123 of 234
PR1: 05/21/2014