VICI SVI - Manual (Page 13)

9
For multiposition valves (5 and 6), positioning is defined using the numbers 1
through 16, limited by the number of positions of the valve. (If an invalid
valve position request is sent, a response of BCMD appears, indicating a
command which cannot be executed.)
Examples
Command: V1A
Instructs the SVI to move valve 1 to Position A.
The first variable is the command letter, which indicates that
this is a Valve positioning command. The second variable
directs the command to valve 1, while the third instructs the
SVI to move it to Position A. This command would function
equally well as V1L.
Command: L512
Instructs the SVI to ignore any command which would move valve 5
to any position past position 12.
The command letter indicates that this is a request for a position
Limit, which is directed, as the second variable indicates, to valve 5.
The third variable sets that limit at Position 12.
Command: V68
Instructs the SVI to move valve 6 to Position 8.
The first variable indicates that this is another example of a Valve
positioning command. The second variable directs the command to
valve 6, which is a multiposition valve. This means that the pos-
itional variable must be numerical: A or B will not work. In this
example, Position 8 is selected. (A zero may precede a single digit
positional command, so this command would also work as V608.)
Command Letter/Valve Number
In these commands, valve numbers 1 to 6 are again used, depending on the
valve to be addressed.
Examples
Command: S1
Requests the SVI to transmit to the host the current sensed status
of valve 1. If the valve status cannot be read, it will return an error
status. (See page 10)
Command: F2
Requests the SVI to verify all attempts to position valve 2, and to
provide serial port status feedback to the host.
Command: N3
Requests the SVI to ignore the status feedback on valve 3 following
any actuation command.
Command: L5
Requests the SVI to transmit to the host the current limits set for
valve 5. NOTE: This command is only valid for the multiposition
actuators, on valves 5 and 6.
Communicating with the SVI using Vcom