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Serial Device Control via Ethernet
The OMNI-VII provides a way to control devices that are connected to the OMNI-
VII's serial interface, by using the "Serial Pass Thru" command protocol on the Ethernet
interface. It also allows the OMNI-VII to echo back out on the Ethernet Interface, data
bytes it receives in on the serial interface port, "Serial Echo Mode". This interfacing
makes it possible to control devices such as Steppir Antenna controllers, serially
controlled amplifiers, etc.
The serial port configuration is the same as it is for the command/control protocol:
57600 baud
No Parity
8 Data Bits
1 Stop Bit
Serial Pass Thru
This command encapsulates a command stream that will be sent out the OMNI-VII's
serial interface port.
Format:
Example1:
Example2:
Rev 1.009
OMNI-VII Firmware Updates at www.rfsquared.com
'*' 'E' <n> <nn..n1> <CR>
E = the ASCII 'E' character (0x45)
<n>
= binary number of items to send in this command
LIMIT of <n> is 11.
<nn..n1> = binary the items to send in this command
Range = 0..0xff
*E<0x04> TEST <CR> Instructs the OMNI-VII to send out on the
serial interface port the following command stream "TEST"
Assume a SteppIR controller is connected to the OMNI-VII Serial
Port.
*E <0x0B> <<0x40, 0x41, 0x00, 0x20, 0x92, 0xAC, 0x00, 0x40,
0x31, 0x30, 0x0D>> <CR> The data stream within the <<>>
would instruct the SteppIR to set the antenna to 21.347MHz, 180
degrees. Refer to SteppIR interface spec for specifics on this or
other commands at the SteppIR web site.
OMNI-VII Programmer's Reference Guide
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