Confidential - PSION INDUSTRIAL PLC
Workabout MX Service Manual
22
Version 1.0
7
When a serial link has been established between the PC and the Workabout, any
characters you type on the Workabout appear on the PC screen and vice-versa. This
indicates that the RS232 serial channel is working correctly.
8
To exist from the
Comms
program, press
+
on the Workabout.
Testing the TTL Interface
You can test the TTL interface by using a compatible barcode device. To do this, follow steps
1 to 4 of the RS232 Interface check procedure and then follow the steps below:
1
Plug a compatible barcode device into the TTL port.
2
If the barcode device is giving true data, set the expansion board port to D. If it is giving
inverted data, set the port to G:
a) In the
Comms
application, press
Menu
and select
Spec
. (Use the
↑
and
↓
keys to
select an item and the
←
and
→
keys to select a value.)
b) Set the baud rate to 9600 and the port to D or G as appropriate.
3
Scan some sample bar codes. The numerical equivalent of the barcode should appear in
the top left corner of the screen.
+
Note:-
Always scan at least two different barcodes to ensure that a chance operation has
not occurred.
4
To exist from the
Comms
program, press
+
on the Workabout.
Testing the Barcode Interface
The Barcode interface can be tested using a compatible barcode wand or scanner. To do this,
follow steps 1 to 4 of the RS232 Interface check procedure and then follow the steps below:
1
Plug a compatible barcode device into the Barcode port.
2
Set the expansion board port to E and set the baud rate to 9600 (refer to the
Testing the
TTL Interface
instructions).
3
Scan some sample bar codes. The numerical equivalent of the barcode should appear in
the top left corner of the screen.
4
To exist from the
Comms
program, press
+
on the Workabout.
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