MOGlabs FZW600, Manual

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D. Communications
The FZW can be connected to a computer by USB or ethernet ( TCP/IP )
and the software package
mogfzw
(chapter 3) provides interactive
functionality. Device control can also be integrated into existing
control software following the protocol below using the commands
in Appendix C.
D.1 Protocol
Device communication follows a query/response protocol using CRLF-
terminated ASCII strings. Statements are either
commands
or
que-
ries
depending on whether they cause an action to occur. A command
will always respond with
OK
or
ERR
as appropriate.
It is strongly recommended that all software should wait for this
response and check for success before continuing. The
python
and
LabVIEW
bindings provided take care of buffering and error checking
automatically.
The
MOGLabs Commander
application (
mogcmd
) is available as part
of the
mogfzw
package and provides a convenient interface for sen-
ding commands and receiving responses (Figure D.1).
D.2 TCP/IP
The
FZW
can be accessed over ethernet via the
IPv4
protocol. When
ethernet is connected, the FZW will attempt to obtain an IP address
by DHCP . If DHCP fails, an internally defined address will be used.
In both cases, the address will be shown on the device display (for
example,
10.1.1.190:7802
), showing the address and port number
for communicating with the device.
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