Aerco Benchmark 2.0 LN User Manual

Benchmark 2.0 LN Installation, Operation & Maintenance Manual
CHAPTER 9 – RS232 COMMUNICATION
OMM-0046_0J AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 111 of 168
GF-123 Ph.: 800-526-0288 06/18/2015
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.
NOTE
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.
9.4.3 Sensor Log
The sensor values can be logged at a different rate if needed by setting the Sensor Log Interval
in the Diagnostics Menu. The log interval can vary from once every minute to once every day.
Table 9-3 shows a sample Sensor Log every 5 minutes for a boiler running in Constant Setpoint
mode.
Table 9-1. Sample Fault Log Display
No.
Fault Message
Cycle
Date
Time
0
Direct Drive Signal Fault
609
1/10/02
8:42am
1
Low Gas Pressure
366
7/04/01
5:29pm
2
Loss of Power
0
1/01/01
11:50am
Table 9-2. Sample Operation Time Log Display
Status
Fire Rate
Flame
Run Length
Date
Time
Off, Direct Drive
0
0
8
1/15/02
2:35pm
Run, Direct Drive
38
100
34
1/15/02
2:27pm
Run, Direct Drive
31
100
30
1/15/02
1:53am
Run, Direct Drive
35
100
2
1/15/02
1:23pm
Run, Direct Drive
29
100
0
1/15/02
1:21pm
Ignition
0
0
0
1/15/02
1:20pm
Off, Switch
0
0
35
1/15/02
12:30pm
Run, Manual
40
100
0
1/15/02
11:55am
Ignition
0
0
0
1/15/02
11:55am
Power-up
0
0
0
1/15/02
11:50am

Aerco Benchmark 2.0 LN Specifications

General

Brand	Aerco
Model	Benchmark 2.0 LN
Category	Boiler
Language	English