Vishay VT 200 - Testing the Print Buffer (Function 94); Testing Data Received on both Serial Ports (Function 96)

Service Operations and Testing
Testing the Indicator
VT200/220 Technical Manual, Rev 1.00.01 75 Doc # TM-VT200/220-EN
4. Press PCS (
) to toggle output 2 on and off. When it is on, the data sent should
be displayed in the sixth digit. If the output connects to another device, check if
the signal was received.
5. Connect a device to the digital input, and send a signal. See if the data appears in
the first digit.
8.2.4 Testing the Print Buffer (Function 94)
To test the print buffer:
Access the function menu and select function 94. An ASCII file (30h-7Fh) is
output to the printer port, with error control.
8.2.5 Testing Data Received on Both Serial Ports (Function 96)
To test data received on one or both serial ports:
1. Access the function menu and select function 96.
2. The display shows data received on COM ports, as follows:
 The two digits on the left (first and second digits) show data received on
COM 1.
 The two digits on the right (fifth and sixth digits) show data received on
COM 2.
3. Connect a PC or another device to one or both of the indicator’s ports, and begin
transmitting data. Watch the display to see if the data is received properly.