9
Appendix C RS232 Protocol
RS232 settings are internally definable via jumper blocks, to accommodate interfacing with a wide range of control
products.
Baud rate 9600 or 19200
Echo status AUTO or REQUEST
Baud rate: Maximum number of bits per second. The duration of a single bit is equal to 1 / baud rate.
Echo status: Specifies whether the
STATUS
of each parameter shown in the protocol will automatically (
AUTO
) be
echoed back to the controller when there is any change, or whether the user must manually request
(
REQ
) the status information be sent to the controller. Please refer to page 12 or information on
changing these settings.
All commands will follow the format:
<Header><Command Identifier><Argument 1><Argument 2><Argument 3>
where:
<Header> = <FEh><EEh>
<Command identifier> = <byte>
<Argument x> = <byte>
Each command will be able to access the system configuration directly, eliminating the need to press any button on
the Intrepid front panel.
Example:
1) To put the Intrepid into standby: Send FE, EE, 01, 00, 00, 00 (all values in Hex).
Where FE and EE are the header, 01 = command, 00 = main standby, 00 = put unit in standby and 00 = filler
(4 characters required)
