1 supported elm327 programmable parameters, Supported elm327 programmable parameters, Stn1100 – ScanTool STN1100 FRPM User Manual
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5.1 Supported ELM327 Programmable Parameters
Programmable parameters are configuration
values stored in non-volatile memory. Please refer to
the “Programmable Parameters” section of the
ELM327 datasheet for a full description of this
functionality.
All programmable parameters can be turned off
and reset to their default values by holding RESET
¯¯¯¯¯¯
input low for 5 seconds, until PC Rx LED starts
flashing rapidly. After RESET
¯¯¯¯¯¯ input is released,
device will set all factory defaults, and then perform
ATZ reset.
Programmable Parameters
PP Description
Values Default Type
00
Perform ATMA after power up or reset
00 = ON
FF = OFF
FF
(OFF)
R
01
Printing of header bytes (ATH default setting)
00 = ON
FF = OFF
FF
(OFF)
D
02
Allow long messages (ATAL default setting)
00 = ON
FF = OFF
FF
(OFF)
D
03
NO DATA timeout time (ATST default setting)
setting = value x 4.096 ms
00 to FF
32
(205 ms)
D
04
Default adaptive timing mode (ATAT setting)
00 to 02
01
D
06
OBD source (tester) address.
00 to FF
F1
R
07
Last protocol to try during automatic searches
01 to 0C
09
I
09
Character echo (ATE default setting)
00 = ON
FF = OFF
00
(ON)
R
0A
Line feed character
00 to FF
0A
R
0C
Default UART baud rate divisor
setting = 4000000 / value
02, 04,
06 to FF
68
(38.4 kbps)
P
0D
Carriage return character
00 to FF
0D
R
10
J1850 voltage settling time
setting = value x 4.096 ms
00 to FF
0D
(53 ms)
I
13
Auto search time delay between protocols 1 & 2
setting = value x 4.096 ms
00 to FF
F4
(999 ms)
I
16
Default ISO baud rate (ATIB default setting)
00 = 96
FF = 10
FF
(10.4 kbps)
R
17
ISO wakeup message rate (ATSW default setting)
setting = value x 20.48 ms
00 to FF
92
(2.99 sec)
D
18
Auto search time delay between protocols 4 & 5
setting = value x 4.096 ms
00 to FF
00
(no delay)
I
24
CAN auto formatting (ATCAF default setting)
00 = ON
FF = OFF
00
(ON)
D
25
CAN auto flow control (ATCFC default setting)
00 = ON
FF = OFF
00
(ON)
D
26
CAN filler byte (used to pad out messages)
00 to FF
00
D
29 Printing of CAN data length (DLC) when printing header bytes
(ATD0/1 default setting)
00 = ON
FF = OFF
FF
(OFF)
D