Hello,
Is it allowed to connect the CAN1, the CAN2, the CAN of a microcontroller and the Engine-CAN together.
Regards,
Lammert
Connect CAN together
- Lammert Kappers
- Posts: 3
- Joined: Thu Oct 13, 2011 9:14 am
- ksaenz
- Enovation Controls Development
- Posts: 263
- Joined: Thu Aug 19, 2010 7:53 am
Re: Connect CAN together
Hello Lammert,
You could do that but CAN1 and CAN2 will receive duplicate messages.
What are you trying to do?
Regards,
ksaenz
You could do that but CAN1 and CAN2 will receive duplicate messages.
What are you trying to do?
Regards,
ksaenz
- Lammert Kappers
- Posts: 3
- Joined: Thu Oct 13, 2011 9:14 am
Re: Connect CAN together
Hello ksaenz,
I will try to explain it.
As I told: the PV750, the Volvo Penta Engine and a MC012-010 microcontroller from Sauer-Danfoss is connected to each other.
Perhaps it is possible to do everything inside the PV750 but I start 2 weeks ago with the PV750 and the software from Murphy. Till now I can do almost everything with the display but to program him as I usually do with the Microcontrollers is a complicated.
What I need:
I use the display to read the normal functions of the motor including some extra functions like several pumppressures, hydraulic oil temperature, level etc.
These parameters are comming from the inputs of the microcontroller and the PV750. Depending of the actual torque and the needed waterpumpvolume (power) I need I will increase or decrease the engine speed with a modified TSC1 functionblock which Sauer-Danfoss has inside his microcontroller.
Because I have only one CAN-port on the microcontroller so I need to connect al the ports together.
Do you have other options?
Which messages will give some troubles if I connect CAN1 and CAN2 together?
Regards,
Lammert
I will try to explain it.
As I told: the PV750, the Volvo Penta Engine and a MC012-010 microcontroller from Sauer-Danfoss is connected to each other.
Perhaps it is possible to do everything inside the PV750 but I start 2 weeks ago with the PV750 and the software from Murphy. Till now I can do almost everything with the display but to program him as I usually do with the Microcontrollers is a complicated.
What I need:
I use the display to read the normal functions of the motor including some extra functions like several pumppressures, hydraulic oil temperature, level etc.
These parameters are comming from the inputs of the microcontroller and the PV750. Depending of the actual torque and the needed waterpumpvolume (power) I need I will increase or decrease the engine speed with a modified TSC1 functionblock which Sauer-Danfoss has inside his microcontroller.
Because I have only one CAN-port on the microcontroller so I need to connect al the ports together.
Do you have other options?
Which messages will give some troubles if I connect CAN1 and CAN2 together?
Regards,
Lammert
- ksaenz
- Enovation Controls Development
- Posts: 263
- Joined: Thu Aug 19, 2010 7:53 am
Re: Connect CAN together
One of the things that will happen if you connect both CANPorts to the same bus is that you will get double DTCs. Also the PV750 will have to process twice as many messages.
You can connect the ECU and the microcontroller to the PV750's CAN port 1 and they will all talk to each other, the part that I don't understand is why CAN port 2 needs to be included also.
Regards,
ksaenz
You can connect the ECU and the microcontroller to the PV750's CAN port 1 and they will all talk to each other, the part that I don't understand is why CAN port 2 needs to be included also.
Regards,
ksaenz