Stop transmitting message on CAN bus

I'm trying to cease the transmission of a CAN message under certain conditions.

Closest I have is a boolean going in to a switch block (port 2) with the CAN Pack going in to port one and nothing on port 3. The output is going to the CAN transmit.

The problem is that although the message is not transmitted, a zero is transmitted in it's place, dispite the port being empty.

I've tried using If Else blocks, and using a Switch case too, both times with the default output grounded, but they don't work. Does anyone have any ideas?

[Jonas]

Which CAN transmission block are you using? Which hardware are you using? Are you using Simulink Real-time?

[Stephen]

I'm using CAN Transmit from: Vehicle Network Toolbox/CAN Communication.

Just using the Mathworks Virtual Channel and canTool to view at the moment but will be using Kvaser later.

Using regular Simulink and pacing the simulation 1:1

[Urmila Rajpurohith]

Hey Stephen,

Can you provide the version of MATLAB which you are using?

And can you provide more information regarding your input to CAN Pack block.

[Urmila Rajpurohith]

could you share the model so that i can reproduce the same.