Simulink External Mode: Arm Trigger command?

In the Simulink External Mode Control Panel, there is a Arm/Cancel Trigger button. I would like to execute this from the command line.

The mex commands are as follows, but I do not know how to perform them action: EXT_ARM_TRIGGER and action: EXT_CANCEL_LOGGING

What I really want to do is change the sampling duration in External Signal and Triggering dialog, but I am unable to do so unless the trigger is unarmed.

Any advice would be much appreciated, Thank you

Answer 1

[Ali Asghar Pourostad]

You can see this page for full help

https://www.mathworks.com/help/rtw/ug/external-mode-simulation-with-tcpip-or-serial-communication.html

short answer is to use this function to arm trigger:

set_param(gcs,'ExtModeCommand','armWired')

and this one for cancel trigger:

set_param(gcs,'ExtModeCommand','cancelWired')

all parameters come in last part of link above