What is correct syntax for WaitUntil /inpos?

RAPID Programming
1

I cannot get this syntax correct? I want to wait until the robot stops moving after getting to a position. Or waiting for the gripper to close.

2

Hi Gczerkawski,

You Can use WaitRob to wait until the robot is in position, with

WaitRob \InPos;

If you use WaitUntil you must provide a True/False condition,

WaitUntil \inpos, Cond;

You could use this command as following to achieve the same functionality as WaitRob:

WaitUntil \inpos, TRUE;

This will wait until the robot is in position, and check the Cond Boolean which is just set to TRUE, so it will continue.

If you wanted to wait for a gripper as well as the robot being stopped then you would need a Boolean condition or digital input telling you when the gripper is closed, either one:

WaitUntil \inpos, b_GripperClosed = TRUE;

WaitUntil \inpos, diGripperClosed = 1;

It depends how you have your system set up.

These funcions are well documented in the ‘RAPID Instructions, Functions and Data Types (IRC5)’ Help available through File → Help → IRC5 Documentation → RAPID in RobotStudio.

Good Luck,

Harry

3

Thank you!

4

I’ll hijack this thread with a follow up question:
If I write the code as:

WaitUntil \inpos, TRUE \Maxtime=2 \Timeflag:=bTimeout;

Will the timer start if inpos=0 or will it wait indefinitly?

5

Hello! I’ll just hijack this thread with a follow up question:

WaitUntil \inpos, TRUE \Maxtime=2 \Timeflag:=bTimeout;

If i write like this, will the timer start if inpos = 0 or will it wait until end of times?

Thanks

6

Hi Jimli,

It should wait until either - the robot is in position, OR, 2 seconds has passed, then it will continue. It will not wait indefinitely, unless you haven’t provided a timeout and the robot is not in position and not moving to its position.

If 2 seconds passes and the robot is not in position, it will set bTimeout to TRUE and continue. Note that if you hadn’t provided a Timeflag argument then if the timer expired it would throw an error instead.

You can always test it in your simulator!

Regards,
Harry