Socket_read_line length limit?

Is there a maximum string length limit for socket_read_line?

I’m using urscript 5.2. Manual doesn’t mention a limit https://s3-eu-west-1.amazonaws.com/ur-support-site/46196/scriptManual.pdf

I found a previous post about this but there’s no reply there either Max length of string in URScript - #2 by friend

Any help would be appreciated. Thanks.