Instruction
Manual
P/N 30-2224
8 CHANNEL K-TYPE CAN MODULE
STOP! - READ THIS BEFORE INSTALL OR USE!
WARNING:
THIS INSTALLATION MAY REQUIRE WELDING OR INTEGRATION INTO A VEHICLE'S ELECTRICAL SYSTEM. DAMAGE
TO SENSITIVE ELECTRONICS, FIRE, OR EXPLOSION MAY OCCUR IF PROPER PRECAUTION IS NOT TAKEN. IF THERE
IS ANY DOUBT, DO NOT ATTEMPT THE INSTALLATION AND CONSULT A PROFESSIONAL.
NOTE: IT IS THE RESPONSIBILITY OF THE ENGINE TUNER TO ULTIMATELY CONFIRM THE CALIBRATION USE FOR
ANY PARTICULAR ENGINE IS SAFE FOR ITS INTENDED USE. AEM HOLDS NO RESPONSIBILITY FOR ANY ENGINE
DAMAGE THAT RESULTS FROM THE MISUSE OF THIS PRODUCT.
The AEM 8 Channel K-Type CAN Module enables a user to put eight K-type thermocouples on to an AEMnet or CAN bus.
K-type thermocouples are suitable for various applications such as exhaust gas temperature (EGT) measurement,
pre/post intercooler temperatures, cylinder head temperatures, and more. All measurements are cold junction
compensated with a range of -200 to +1372 degC / -328 to +2501 degF. The Module is provided with a four-pin DTM
connector to provide CAN, power connectivity, and eight miniature style K-type sockets. The Module supports the Bosch
CAN 2.0b standard with flexible CAN configuration jumpers making it compatible with many third-party devices. Note: The
only AEMnet devices that are compatible with the CAN Sensor Module are the CD-series dash displays.
Features
· Eight (8) K-Type Cold Junction Compensated
Thermocouple Inputs
· AEMnet/CAN Output (Thermocouple and Cold
Junction Temperatures)
· -200 to +1372 degC / -328 to +2501 degF
· ±0.15% (Max) Thermocouple Full-Scale Error
· 0.1 degC Resolution
· Open Circuit / Fault Detection
· 'Miniature' Style Thermocouple Sockets
· Jumper selectable CAN bus speeds: 250k, 500k, 1M
· Jumper selectable header length, 11 bit or 29 bit
· Jumper selectable base address, two units can be on
PN
35-2224
10-2224
4-4083
35-2624
QTY
1
1
1
1
Description
MODULE, CAN K-TYPE MODULE
INST, 30-2224
2.0" x 1.5" VELCRO
4 WAY DTM PLUG KIT
the same bus
AEM Performance Electronics, 2205 126th Street Unit A, Hawthorne, CA 90250 - Phone: (310) 484-2322
http://www.aemelectronics.com
2
30-2224 8 CHANNEL K-TYPE CAN MODULE
Installation
Mounting
The Module should may be mounted within the vehicle using the supplied hook-and-loop fastener or cable ties. The
Module's circuit board has a water-resistance coating applied and thus has some tolerance to a humid or condensing
atmosphere, however the thermocouple connectors are not sealed so a dry and cool mounting location should be chosen.
Power / AEMnet (CAN)
A four pin Deutsch DTM receptacle is integrated into the Module's enclosure to provides power and AEMnet/CAN
connectivity. This allows a straightforward "Plug and Play" installation when adding to an existing AEMnet network.
General Wiring Guidelines
· Route wiring away from sources of noise such as alternators, ignition components, or other high power/frequency wiring
· Shielded wire is suggested to reduce the susceptibility of noise; the shield should only be grounded/drained on one end
of the wiring harness
· CAN wiring should utilized twisted pairs (> 1 TPI); shielding is recommended
Pin
1
2
3
4
Name
AEMnet+ / CANH
AEMnet- / CANL
12V Battery Power (+)
Ground (-)
Function
AEMnet / CAN bus output
AEMnet / CAN bus output
Primary ignition/battery power input
Power Ground
Thermocouple Sensor Wiring
· K-type thermocouples have an industry standard marking in North America: Red is negative (-), yellow is positive (+).
Despite this, some sensors and/or wiring come with alternative coloring. If in doubt, contact the manufacturer.
· Specific K-Type thermocouple wire (not copper) must be used for all wiring, extensions, and connections. Failure to do
so will result in inaccurate readings.
· Connect K-Type sensors to each of the numbered (1 - 8) yellow 'miniature' thermocouple receptacles on the Module.
· The receptacles are polarized, positive (+) and negative (-). Reversing this connection will result in inaccurate readings.
· Route wiring away from sources of noise such as alternators, ignition components, or other high power/frequency wiring
· Shielded wire is suggested to reduce the susceptibility of noise; the shield should only be grounded/drained on one end
of the wiring harness
Cold Junction Compensation
Due to the nature of thermocouples, a "cold" junction sensor has been implemented to provide the most accurate
temperature measurements. This sensor is embedded within the device, all compensations are automatically applied, and
no further action is required by the user. The output of the cold junction sensor is equivalent to the temperature within the
Module and is provided via CAN for reference purposes. The thermocouple sensors' temperature measurements output via
CAN are already CJ compensated and require no further manipulation by the user.
7/12/2018 - DOCUMENT NUMBER: 10-2224
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30-2224 8 CHANNEL K-TYPE CAN MODULE
Jumper Configuration
Two configuration jumpers are located inside the enclosure of the Module. The cover may be removed by unscrewing the
four external screws to change the jumper positions if needed. The Module is delivered from the factory in the most
common configuration suitable for use with AEMnet (and other) devices; changing the jumper positions is not typically
necessary.
CAN CFG - The default position of 500 kb/s & 29 bit ID is correct for AEMnet. Please refer to the manufacturer's
documentation if you are using any third-party devices.
UNIT ID - The default position is correct if there is only a single AEM K-Type CAN Module installed on your network. If
you are using two Modules, the first unit must be set to 'UNIT 1' and the second to 'UNIT 2'.
No Jumper
1-2
UNIT ID
UNIT 2
UNIT 1*
CAN CFG
250 kb/s
11-bit ID
500 kb/s*
29-bit ID
2-3
Description
First or Second Unit on Bus
1000 kb/s
29-bit ID
Bus Speed / ID Type
Jumper Position ( * = Default Position)
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30-2224 8 CHANNEL K-TYPE CAN MODULE
Compatible Sensor and Accessory Part Numbers
The following is a list of compatible sensors and accessories.
AEM PN
Description
K-Type Closed Tip Thermocouple Sensor Kit. Inconel Sheath. 1/8" NPT Compression Fitting. Includes: K-Type
Closed Thermocouple Sensor, 1/8" Compression Fitting & Ring Terminal Harness
30-2065
K-Type Closed Tip Thermocouple 10' Wiring Extension Kit. Includes: 10' Wiring Extension, 2 X 4-40 Hex Nut, 2 X
4-40 Screw & 6" Heat Shrink Tubing
K-Type Closed Tip Thermocouple Kit. Inconel Sheath. 1/8" NPT Compression Fitting. Includes: AEM Part
Numbers 30-2065 & 30-2066, (-2) and (-4) versions include either 2 or 4 sensor and extension combinations
30-2066
30-2068
30-2068-2
30-2068-4
30-3606
AEMNet Extension Cable 2 feet Kit
30-3607
AEMNet Extension Cable 5 feet Kit
30-3608
AEMNet Extension Cable 10 feet Kit
35-3440-F
AEMnet Female Termination Plug
35-3440-M
AEMnet Male Termination Plug
35-2624
DTM-Style 4-Way Plug Connector Kit. Includes Plug, Plug Wedge Lock & 5 Female Pins
35-2625
DTM-Style 4-Way Receptacle Connector Kit. Includes Receptacle, Receptacle Wedge Lock & 5 Male Pins
35-2626
DTM-Style 4-Way Connector Kit. Includes Plug, Receptacle, Plug Wedge Lock, Receptacle Wedge Lock, 5 Female
Pins & 5 Male Pins
Specifications
Dimensions
Supply Voltage
Supply Current (13.8V)
Operating Temperature
K-Type
Thermocouple Inputs
Cold Junction Sensor
CAN
7/12/2018 - DOCUMENT NUMBER: 10-2224
width
length (excl. connector)
height
mass
min
max
nominal
min
max (16V Supply)
Input Protection
1.8 / 45.8
4.0 / 103
1.4 / 35
3.8 / 110
7
18
70
-4 / -20
185 / 85
+/- 45
in / mm
in / mm
in / mm
oz / g
VDC
VDC
mA
degF / degC
degF / degC
VDC
Minimum
Maximum
Resolution
Full-Scale Error
CAN Transmit Rate
Minimum
Maximum
Resolution
Accuracy
CAN Transmit Rate
Bit Rate (User Configurable)
ID Type (User Configurable)
Termination
DLC
-328 / -200
2501 / 1372
0.1
+/- 0.15 (Max)
10
-67 / -55
257 / 125
0.1
+/- 0.7 (Max)
2
250 / 500 / 1000
11 / 29
None
8
degF / degC
degF / degC
degC
%
Hz
degF / degC
degF / degC
degC
degC
Hz
kb/s
bits
Ohm
Bytes
© 2018 AEM Performance Electronics
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30-2224 8 CHANNEL K-TYPE CAN MODULE
FAQ / Troubleshooting
My Module doesn't seem to be outputting anything.
Confirm that your CAN bus is properly terminated and that all nodes are configured for the right bus speed. In addition,
any receiving devices/nodes must be specifically configured to receive as the Module is configured to transmit;
specifically, the CAN ID, bus speed, and number of ID bits.
The temperatures that my module is outputting don't make sense.
Thermocouple wires have polarity meaning there is a positive (+) and negative (-) wire. Please ensure that the polarity is
correct from the sensor, through any extensions, and to the correct terminal on the Module. The polarity is marked on the
top of the enclosure of the Module. All sensor wiring and/or extensions must be constructed of the proper K-type alloy
wire. The Module will output a temperature of "3276.7 degC" when a channel does not have a sensor plugged in.
Can I use the Module with my AEM AQ-1, AEM CAN Gauge, or AEM ECU?
No, the CAN Sensor Module is only compatible with CD-series dash displays and other third-party devices at this time.
Where can I find AEM .dbc files?
AEM dbc files are available via the AEM Forum and within the AEM CD-series dash display software installer. Please visit
www.aemelectronics.com for more information and downloads.
For support, contact AEM Technical Support at 1-800-423-0046 or [email protected].
AEMnet (CAN Bus) Output
WHITE WIRE = AEMnet+ / CANH
CAN DBC definition files are available at
GREEN WIRE = AEMnet- / CANL
www.aemelectronics.com
Bus Termination
bit rate
Selectable via Jumper
All AEMnet/CAN networks must be terminated to have an
format
Selectable via Jumper
equivalent of approximately 60 Ohms of resistance.
terminating resistor
NONE
Generally, this means a 120 Ohm resistor connected in
endianness
big / Motorola
parallel to AEMnet+/AEMnet- (or CANH/CANL) at both
physical ends of the bus run.
DLC
8
Unit 1:
Unit 2:
kb/sec
bit ID
Byte
0x0000BA00 (29) / 0x5A0 (11) at
10Hz
Label
0x0000BB00 (29) / 0x5B0 (11) at 10Hz
Data Type
Scaling
Offset
Range
0
Thermocouple1
16 bit signed
0.1 degC/bit
0
-3276.8 to +3276.7 degC
Thermocouple2
16 bit signed
0.1 degC/bit
0
-3276.8 to +3276.7 degC
Thermocouple3
16 bit signed
0.1 degC/bit
0
-3276.8 to +3276.7 degC
Thermocouple4
16 bit signed
0.1 degC/bit
0
-3276.8 to +3276.7 degC
Unit 2:
Byte
0x0000BA01 (29) / 0x5A1 (11) at
10Hz
Label
Data Type
Scaling
Offset
Range
0
Thermocouple5
16 bit signed
0.1 degC/bit
0
-3276.8 to +3276.7 degC
Thermocouple6
16 bit signed
0.1 degC/bit
0
-3276.8 to +3276.7 degC
Thermocouple7
16 bit signed
0.1 degC/bit
0
-3276.8 to +3276.7 degC
Thermocouple8
16 bit signed
0.1 degC/bit
0
-3276.8 to +3276.7 degC
1
2
3
4
5
6
7
Unit 1:
0x0000BB01 (29) / 0x5B1 (11) at 10Hz
1
2
3
4
5
6
7
Unit 1:
0x0000BA02 (29) / 0x5A2 (11) at 2Hz
Unit 2:
Byte
Label
Data Type
0x0000BB02 (29) / 0x5B2 (11) at 2Hz
Scaling
Offset
Range
0
Cold Junction Temperature
16 bit signed
0.1 degC/bit
0
-3276.8 to +3276.7 degC
1
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30-2224 8 CHANNEL K-TYPE CAN MODULE
2
Battery Voltage
8 bit unsigned
0.1 V/bit
0
0 - 25.5 V
3
n/a
n/a
n/a
n/a
n/a
4
n/a
n/a
n/a
n/a
n/a
5
n/a
n/a
n/a
n/a
n/a
6
n/a
n/a
n/a
n/a
n/a
7
n/a
n/a
n/a
n/a
n/a
12 Month Limited Warranty
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w orkmanship for a period of tw elve (12) months from date of the original purchase. Products that fail w ithin this 12-month w arranty period w ill be
repaired or replaced at AEM’s option, w hen determined by AEM that the product failed due to defects in material or w orkmanship. This w arranty is
limited to the repair or replacement of the AEM part. In no event shall this w arranty exceed the original purchase price of the AEM part nor shall
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accident, abuse, unauthorized repairs or alterations voids this w arranty. AEM disclaims any liability for consequential damages due to breach of
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7/12/2018 - DOCUMENT NUMBER: 10-2224
© 2018 AEM Performance Electronics
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