Hi Jarrold,
why do you use InsertIntoArray when you want to build an array?
Your "Control 4 Bytes" doesn't fit to the ROR description in your manual snippet.
A timeout of the read vi has been stopping my program and i'm not sure if its taking too long to read from the device as its baud rate is suppose to be at 9600
The timeout occurs because you don't receive an answer from your device (most probably)…
Reading 9 bytes at 9600baud just takes ~10ms.