Dwyer DPW - Manual (Page 21)

Command
Name
Flow Meter
Linearizer
LCD Back
Light**
Noise
Reduction
Filter
Read
EEPROM
Memory
Write
EERPROM
Memory
Description
Enable/disable flow meter
linearizer
Display/change LCD back light
settings
Note: LCD back light settings has
to be in the range: )% ≤ BL ≤ 80%
Noise Reduction Filter parameter
settings. Following arguments
supported:
T - Running Average Time
Interval (0-99 seconds)
N -Running Average Number
of samples (1-32)
Reads the value in the specified
memory location.
Writes the specified value to the
specified memory location. Use
Carefully, can cause unit to
malfunction.
(Note: Some addresses are
write protected!)
No.
17
18
19
20
21
Command
FL
BL
NR
MR
MW
Argument 1
E or D
No Argument
(Returns current
linearizer settings)
(New LCD back
light value) 0 to 80%
No Argument
(Returns current
LCD back light
settings)
T (time interval)
N (number of
samples)
S (status)
0 to 100 (memory
index table)
20 to 100 (memory
index table)
Argument 2
Value
Argument 3 Argument 4 Response
FL:
Example: FL:E
FL:
Example: FL:E
BL:
Example: BL:50
BL:
Example: BL:50
NRT:5
NRN:5
NR:5,5
MW,XXX,
where:
XXX = table index
Example:
MW,100,”Meter#6”
UART Error Codes:
1 - Not Supported Command or Back Door is not enabled.
2 - Wrong # of Arguments.
3 - Address is Out of Range (MR or MW commands).
4 - Wrong # of the characters in the Argument.
5 - Attempt to Alter Write Protected Area in the EEPROM.
6 - Proper Command or Argument is not found.
7 - Wrong value of the Argument.
8 - Reserved.
9 - Manufacture specific info EE KEY (wrong key or key is disabled). Diagnostic events codes and bit position:
1. CPU Temp. High
0
2. Flow > 125% FS 1
3. High Flow Alarm 2
4. Low Flow Alarm 3
5. High Temperature Alarm 4
6. Low Temperature Alarm 5
7. Temperature Above Limit 6
8. Temperature Below Limit 7
9. Main Totalizer ≥ Limit 8
10. Pilot Totalizer ≥ Limit 9
11. EEPROM Failure A
12. DC/DC converter Voltage too High B
13. DC/DC converter Voltage too Low C
14. Communication Error D
15. Reserved E
16. Fatal ERROR F
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