Specifications

Chapter 2 Firmware Commands 65
Null Command
Syntax: <SOH>Z<CR>
Description: Queries the controller and waits for a response.
Use Z to determine that you are communicating with the controller or
to make sure that a utility is communicating with the controller. Using
this command does not affect the controller’s current operating
parameters.
Response: <SOH>0<CR> Positive response.