DSATX Manual
Copyright 2006 Mpegbox.com
Page 10 of 13
4.6.
Advanced Features
For some users enough is never enough. The DSATX has the ability to fine tune many of the parameters
that control its behavior. By using Set and Get commands (‘S’ and ‘G’) it is possible to read and write these
parameters to the DSATX. To use the Set command, type at the prompt, an ‘S’ followed by 2 numbers for the
index, followed by either 4 numbers or 1 number for the value.
Ex:
>S011130
ß
Set parameter 1 (LOWVOLTS) to 11.30V
To use the Get command type ‘G’ at the prompt followed by the 2 number index.
Ex:
>G90
ß
Get parameter 90 (Program Memory Version)
0108
ß
Returns this result (1.08)
4.7.
Advanced Feature Tables
The following tables show the available Parameter settings and Queries. Parameters will respond to the
Set and Get command. Queries will only respond to the Get command.
Parameter
Index
Factory
Default
Value
Units
Description
Set By 'P' in
Extended
Basic Mode
LOWVOLTS
01
1100
10mV
Hard Coded Vin Low Battery Threshold (if USEPOTS =0)
Y
VINHIGHTHRESH
02
1300
10mV
Alternator "Turn on" Voltage Threshold
HIGHVOLTS
03
1650
10mV
Vin Over Voltage Threshold
VOLTSHYST
04
0045
10mV
Vin Voltage Hysteresis (Engine Cranking)
VOLTSTHYST
05
1000
10ms
Vin Voltage High to Low Time Window (Engine Cranking)
VOLTSTHYST1
06
0100
10ms
Vin Voltage Low to High Time Window
TURNONDELAY
07
0100
10ms
Time To Wait After ACC High before sending turn on pulse
PULSEWIDTH
08
0100
10ms
Motherboard Power Switch Press Duration
MAXTIMER1
09
1200
1s
Maximum CountDown Time set by Potentiometer P1
Y
TIMER1EE
10
1200
1s
Hard Coded CountDown Time (if USEPOTS =0)
Y
TIMETOKILL
11
0090
1s
Time Allowed for Computer to Shut Down
USEPOTS
12
1
1=yes, 0=no
If set, P1 and P2 set CountDown Time and Vin Low Battery Threshold
Y
ENABLESLEEP
13
1
1=yes, 0=no
If set, Unit Will go use Sleep Mode, ACC High for Wake Up
FEEDON
14
1
1=yes, 0=no
If set, Serial Port Diagnostic Status Feed is Enabled
VTURNON
15
0
1=yes, 0=no
If set, Mb Switch Press occurs after Vin is above VINHIGHTHRESH
Y
ACCTIMEVAL
16
0050
10ms
Settling time for the ACC input (Debouncing time)
TEMPHIGH
17
0550
0.1 deg C
Maximum Operating Temperature
TEMPLOW
18
0100
0.1 deg C
Minimum Operating Temperature (Can be Positive or Negative)
TEMPHYST
19
0050
0.1 deg C
Temperature Stabilization Margin (Hysteresis to Prevent Oscillations)
TEMPLOWSIGN
20
0
1=pos, 0=neg Polarity of TEMPLOW (Minimum Operating Temperature)
TEMPTHYST
21
0200
10ms
Temperature Time Stabilization Window (Temp must stay good/bad)
ENABLE5VSBOFF
22
1
1=yes, 0=no
5VSB Rail to Turn Off to Save Battery Life
ENABLESHUTDOWN
23
1
1=yes, 0=no
Allows unit to Send the Motherboard Switch Press for Shutdown
MASTERMODE
24
0
1=yes, 0=no
Allows DSATX to be cascaded with 2 or more DSATX for more Power
EARLYAUXCUT
25
0
1=yes, 0=no
AUX will go away as soon as shutdown pulse is sent
Query
Index
Units
Discription
PlusVIN
40
N/A
10mV
The Current Voltage at the VIN terminal
Plus12
41
N/A
10mV
The Current Voltage on the 5V Rail
Plus5
42
N/A
10mV
The Current Voltage on the 12V Rail
Plus3_3
43
N/A
10mV
The Current Voltage on the 3.3V Rail
ActualTemp
44
N/A
0.1 deg C
The Current Temperature
TempSign
45
N/A
1=pos, 0=neg The Current Temperature Polarity
LowVoltThresh
46
N/A
10mV
Current VIN Low Voltage Threshold (hardcoded or set by P2 between 10-12
volts)
CountDownTimerVal
47
N/A
1s
Current CountDown Timer Value (hardcoded or set by P1 between 0 and
MAXTIMER1)
CurrentState
48
N/A
N/A
Current State: 0 = Wakeup, 1 = Startup, 2 = Running, 3 = Count Down, 4 Shut
Down, 5 Sleep, 6 Bad Temp
MainCounter
49
N/A
1s
Current Value of Counter used when Counting Down to Swtich States
P_VERSION
90
N/A
N/A
Flash Memory Version Number
E_VERSION
91
N/A
N/A
EEPROM Memory Version Number
