Psion VH10, Руководство пользователя

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Chapter 4: Configuration
Ports
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Psion VH10 Vehicle-Mount Computer User Manual
Power
Double-tapping on this parameter displays a dialog box in which you can choose to disable (turn off) this
port, or you can assign 5V power to the port.
Baud
Double-tapping on this parameter displays a pop-up window in which you can choose an appropriate rate of
data transfer.
Figure 4.5 Port Baud Rates
Data Bits
This parameter determines the number of data bits included in each asynchronous data byte. Most devices
use 8-bit data bytes. Double-tapping on this option displays a pop-up window in which you can choose
either 7 or 8 data bits.
Parity
This parameter determines the type of parity checking used on the data going through the port replicator
port. Double-tapping on this option displays a pop-up window in which you can choose the appropriate
parity.
Stop Bits
This parameter specifies the number of stop bits — 1, 1.5 or 2 — used for asynchronous communication.
Trigger On Sequence And Trigger Off Sequence
If a SICK scanner connected to an VH10 computer port requires a serial stream of data bytes to trigger the
scanner
on and another to trigger the scanner off , the Trigger On Sequence and Trigger Off Sequence pa-
rameters allow you to define these serial streams.
Double-tapping on Trigger On Sequence or Trigger Off Sequence displays a screen with a hex array of
10 elements.
These parameters work in conjunction with Manage Triggers sending on and off data streams to the trigger
module you assigned. For example, suppose you launch Manage Triggers and choose Decoded Scanner as
the ‘module to trigger’. Next, you assign a ‘trigger key’ — for this example, . (period). To define the serial
stream of data bytes to control the
on and off function of the ‘trigger key’, enter a hex value in the Trigger
On Sequence and the Trigger Off Sequence fields. When you press the trigger key, the Trigger On Sequence
is sent and when you release the trigger key, the Trigger Off Sequence is sent, turning the trigger key on
and off .