AERCO BMK 2000DF - Manual (Page 121)

Benchmark 1500DF - 2000DF Boilers
CHAPTER 9 – RS232 COMMUNICATION
OMM-0098_0A AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 121 of 196
GF-144 Ph.: 800-526-0288 04/01/2014
9.4.1 Fault Log
The C-More Control Panel logs the last 20 faults (0 – 19) starting with the most recent (#0).
They can be viewed in the front panel display or via the RS-232 port. The Fault Log cannot be
cleared. If the Fault Log already contains 10 faults, the earliest fault is overwritten when a new
fault occurs. A sample Fault Log display is shown in Table 9-1.
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
NOTE
The Operation Time (T) Log can store thousands of records.
Therefore, to view the most recently logged record, enter “T”
followed by 0 (zero) and press Enter (i.e. T0 ). To view
earlier records in reverse chronological order, enter T and press
Enter. To go back 200 or 1000 records, enter T200 or T1000, etc.
and press Enter.
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 RS-232 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 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