VTI Instruments Ametek EX1200A Series, User Manual

Page: 121 / 165

VTI Instruments Corp.
120 EX1200A Web Page Operation
size of the schematic can be changed from to any of the following sizes: Tiny, Small (default),
Medium, and Large.
F
IGURE
7-11: T
YPICAL
S
WITCH
S
OFT
F
RONT
P
ANEL
For switches that support read-back, the relays are color coded to provide the user an indication of
the relay states. The
Color Legend provides the meaning of each color. Dark blue relays have
been commanded closed. This color should appear each time a relay is selected and working
properly. A
light blue relays may be found on a latching relay. It indicates that, although the relay
has not been commanded closed, read-back indicates that it is closed. If a port turns red after
being commanded, this indicates that the relay has failed to close and may require repair. For
switches that do not support read-back, relays will appear dark blue for all states.
The main toolbar of the SFP provides the following functionality:

Control Mode : Three control modes are available for EX1200A modules.
o
Monitor Only : In this mode, the user can view the actions the various EX1200A
components while the module is actively performing automated test. The image is
refreshed every 3 s. In this mode, no modifications can be made. If a another user has
established a session with the EX1200A, all other sessions established after that will be
“Monitor Only” sessions until the previous session has ended.
o
Synchronous Mode : In this mode, the user can manipulate the relays in the EX1200A in
real time. As the user clicks a port or sets a value and it affects the EX1200A at that time.
o
Asynchronous Mode : In this mode, the user may manipulate all relays, but the actions
do not occur until after the Apply button is clicked. Clicking on the Revert button will
cause the plug-in to revert to the state they were in the last time Apply was clicked.
Notes on Web Page Use
Before controlling relays, set the control mode to either Synchronous or Asynchronous .