Signametrics Corporation SM4020, Руководство оператора

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Configuration Option Checks - This section of the main panel allows the selection of one out of all of the possible
pre defined configurations. On power up, the configuration is set to Disabled . Possible selections include Disabled,
TwoWire, FourWire, SixWire, Universal, TwoGroups, and FourGroups .
Edit
Menu - This menu item has three selections, setting all parameters to their default value, opening the Edit
Scanner Parameter sub-panel, and opening the Scan List Editor sub-panels.
Trigger
Menu - This menu item controls the functionality of the scanner’s trigger input and output signals. It
enables or disabled the Trigger output, and sets the polarity of both Trigger input and output.
Tools Menu - This menu item provides access to some of the special test and cleaning tools. It includes the Self-
Cleaning function, the various self-tests, and the shorted input detector.
Operations Menu - This menu item allows running some of the special scanner’s operations such as AutoScan,
Triggered Scan, Triggered Auto Scan, and the setting and monitoring of the Trigger output and trigger input
respectively.
4.0 Scanner Tutorial
Most of the SM4000 functions are accessible from the control panel described in the previous section. This section
describes in detail the Scanner’s operations and practices. To gain familiarity with the SM4000 series Scanners, run
the Windows ‘SETUP.EXE’ to install the software, then run the Scanner control panel to demonstrate its operations.
4.1 Scanner Configurations
The various configurations maybe experimented with using the control panel. Connect to the Scanner’s terminals to
the appropriate channels and bus lines, making sure not to exceed any of the specifications and limits. Use the
control panel’s option checks to select the desired operation mode, and the switch buttons to close or open the
appropriate channels.
There is a special function, included in the DLL, which sets the Scanner configuration on the fly. It is
SCANSetConfig(). The amount of time it takes to set a new configuration is the same as the set Actuation time. It is
important to note that the Scanner can function as a multiplexer, or as an uncommitted matrix switch. In the
TwoWire , FourWire , SixWire , TwoGroups, and FourGroups configurations the Scanner acts as a multiplexer. This
means that when a channel is selected, all other channels in the group are opened prior to closing the selected
channel. For instance, the SM4042 in
FourWire configuration, with Ch1 and Ch21 closed, will respond to ‘select
Ch2’ command by first opening Ch1 and Ch21, then it will close Ch2 and Ch22. All this will be done within the
specified actuation time.
15 Signametrics