RS02 module of the BITREK CONNECT system


Device assignment

The RS02 module (firmware “CAN-Log”) of the Bitrek Connect system is a communication device and is designed for providing communication with the universal programmable controller CAN-Bus “CAN-Log” P145/U245.


Package Contents

The RS02 module of the Bitrek Connect system is delivered in the following configuration:

  • RS02 module - 1 pc;
  • Data sheet - 1 pc;
  • Warranty card - 1 pc;
  • Packing box - 1 pc;
  • Micro Fit 4-pin cable - 1 pc;
  • Micro Fit 6-pin cable - 1pc;
  • Rubber gasket - 3pc.

Device specifications

Technical characteristics of the device are presented in Table 1.

Table 1: Technical specifications of the device

Parameters Characteristics
1 Power supply voltage from 9 V to 36 V
2 Consumption current 20 mA
3 connection interface CAN-Log RS-232
4 Operating temperature range -30°C to +80°C
5 Allowable humidity 80 ± 15%
6 Dimensions (W × D × H) 78 × 83 × 30 mm
7 Weight 130 g
8 housing protection class IP44

Appearance and dimensions of the device

Fig.1. Appearance and dimensions


Pin assignment

The CN03 module is equipped with three Micro-Fit connectors (Fig. 2).

Fig.2. The appearance of the connectors

The four-pin connectors (Fig. 3) are Connect-Bus connectors, which have the power outputs of the module and the outputs signal lines of the bus.

Fig.3. Connect-Bus connectors #1 and #2

The pinout of the Connect-Bus connectors is shown in Table 2.

Table 2 The pin-out of the Connect-Bus connectors No.1 and No.2

Pin nameSignal typePin assignment
1 GND Power supplyGeneral lead (ground)
2 CAN LInput/outputSignal “CAN_L” of the CAN bus
3 + Vin Power supply“+” On-board power supply (nominal voltage 12 V or 24 V)
4 CAN H input/output signal “CAN_H” on the CAN bus

The six-pin connector (Fig.4) is the connector for the “CAN-Log” connector. It has power outputs and signal lines of the RS-232.

Fig.4. Connector for connecting “CAN-Log”

The connector pinout for connecting “CAN-Log” is presented in of the “CAN-Log” connector is presented in Table 3.

Table 3: Connector pinout for connecting “CAN-Log”.

Contact name Signal type Pin assignment
1 RX D Input/Output RS-232 interface RX signal
2 + Vin Power “+” output of onboard power supply (for power supply to external devices)
3 GND power supply common wire (ground)
4 TX D input/output RS-232 TX interface signal
5 + Vin power supply output “+” on-board power supply (for power supply to external devices)
6 GND power supply common wire (ground)

Description of indications

On the front panel of the module on the connector side there are two LEDs on the connector side of the front panel indicate the current status of the device. Red LED - Illuminates when the connection to the Connect-Bus connection is active;\\* Green LED - blinks when RS-232 communication is active.


Module Algorithm

The RS02 module of the Bitrek Connect system communicates via the RS-232 interface the module communicates with the “CAN-Log” device. The module receives data from the device and transmits them to the Connect-Bus.

A total of 29 predefined PGNs are sent to the bus. The list of all variables broadcast to the bus is presented in the Addendum 2.

Some of the variables that are translated to the bus can contain zeros. This situation is possible if:

  • The set interrogation period of the sensor is longer than the sending period of the variable containing the value of that sensor;
  • The “CAN-Log” device does not send information on the current sensor.

Configuring the RS02 module

The RS02 module has a number of configurable parameters of which are listed in Appendix 1. To configure the module The Bitrek Connect configurator module is used, as well as Connect Configurator software. How to work with the configurator module and The software is described in detail in the document “General Guide to Organizing and Configuring the Bitrek Connect System. The general guide to organizing and configuring Bitrek Connect system”.

The RS02 module is compatible with the “CAN-Log” modules of both older versions (P145) and new (U245) modules. The selection of the “CAN-Log” version is done by the parameter ID 0405.

The RS02 module has the possibility to set the working of the “CAN-Log” module. For this purpose in the module parameter ID 0404 it is necessary to enter the desired number of the “CAN-Log” program. At If the value 0 is entered in this parameter, the program number program number will not be changed.

It should be borne in mind, that the setting of the program number will take place only after restarting the module.

It is possible to check the communication between the “CAN-Log” module and the RS02 module. For this purpose the test program CANLog must be installed. In this mode CAN-Log simulates the connection to the external CAN bus of the vehicle and transmits a number of test parameters. These parameters are read out and transmitted to the Connect-Bus. Consequently, it is possible to set these parameters for server by means of a Connect tester. The parameters that can be used as control parameters can be used as parameters coolant temperature and engine speed.

The test program number for the “CAN-Log” version P145 is 188. For version U245 the test program number is 11188.

The basic setting of the module is reduced to setting only two the version of the “CAN-Log” protocol and the number of the “CANLog ”. After these parameters are set correctly, the RS02 module will start transmitting to the bus a number of parameters received from the “CAN-Log”.


Connecting the "CAN-Log" to the RS02 module

The RS-232 interface connection of the “CAN-Log” module and the RS02 module is connected crosswise: the RX signal of the “CAN-Log” module is connected to the TX signal of the RS02 module (see Table 5.)

Table 5. Connection diagram of the “CAN-Log” module

SEO CAN-LOG Connect RS02 module
Pin name Pin number Pin name
RS 232 Rx 4 TX D
RS 232 Tx 1 RX D
GND 3 or 6 GND
+ Vin 5 or 2 + Vin

Appendix 1 . Device parameters

Parameter name ID when configured Parameter digit Parameter assignment Default value
1 CANSlaveAddr 0200 1 byte The device address on the Connect-Bus 4
2 CANLogPrgNum 0404 2 bytes CAN Log program number 188
3 SturtupNum 0405 4 bytes CAN Log protocol version 0
4 BusSendPeriod 0700 1 byte 1 byte CAN Log data sending period to Connect-Bus 1100
5 CANLogPollingPeriod 0701 1 byte CAN Log polling period, in seconds 5
6 DevicePIN 0910 1 byte Device access password 11111

Addendum 2. List of variables broadcasted to the Connect-Bus

Parameter name Width PGN Start Bit Bit Total Timeout Discreteness
1 Device model 4 18F713 0 32 10 -
2 Software version 4 18F713 32 32 10 -
3 module operating time 4 18F712 0 32 10 1 sec
4 number of starts of the module 4 18F712 32 32 10 pcs
5 engine runtime 4 18F715 32 32 5 1 sec
6 vehicle mileage 4 18F716 0 32 5 0.005 km
7 Fuel consumption 4 18F716 32 32 5 0.05 l
8 Fuel level in the tank (liter or %) 2 18F717 0 16 5 0.1 l/0.1 %
9 Engine speed 2 18F717 16 16 5 0,25 rpm
10 Motor temperature 1 18F717 32 8 5 -60 °C
11 vehicle speed 1 18F717 40 8 5 1/256 km/h or 1 km/h
12 axle load #1 2 18F717 48 16 5 0.5 kg
13 axle load #2 2 18F718 0 16 5 0.5 kg
14 axle load #3 2 18F718 16 16 5 0.5 kg
15 axle load #4 2 18F718 32 16 5 0.5 kg
16 axle load #5 2 18F718 48 16 5 0.5 kg
17 Harvesting time 4 18F71A 0 32 5 1 min
18 Harvested area 4 18F71A 32 32 5 1/10000 ha
19 Capacity 2 18F71B 0 16 5 1/100000 ga/h
20 harvested yield 4 18F7B 16 16 5 1 kg
21 grain moisture 2 18F71B 48 16 5 0,1%
22 AdBLUE liquid level 2 18F71C 0 16 5 0.1%
23 threshing drum speed 2 18F71C 16 16 5 1 rpm
24 Outlet drum clearance 2 18F71C 32 16 5 1 mm
25 Accelerator pedal position 1 18F71C 48 8 5 0.4%
26 engine load 1 18F71C 56 8 5 1 %
27 mileage to next service 2 18F71D 16 16 5 1 km
28 excess mileage 2 18F71D 32 16 5 1 km
29 mileage after service 2 18F71D 48 16 5 1 km