IDS440 Users Manual version 4.2 Diagnostic Tests
48
Diagnostic Tests
The DIAGNOSTIC TESTS are accessed using configuration function 69. Hold the
CLEAR key down and press the ENTER key. The display prompts “CFG xx” where xx
is the currently selected parameter. Enter 69 and press the ENTER key to access the
DIAGNOSTIC TESTS.
The display prompts “diA xx” where xx is the last selected diagnostic function. Select a
test number from the table below. Enter the test number and press the ENTER key.
Table of Diagnostic Tests
Test No.
Hardware Tested Description
1 Serial Com. Port 1 Display input data.
2 Serial Com. Port 1 Display input error count.
3 Serial Com. Port 1 Transmit data.
4 Serial Com. Port 2 Display input data.
5 Serial Com. Port 2 Display input error count.
6 Serial Com. Port 2 Transmit data.
7 Parallel Port Transmit data.
8 A/D converter Display raw conversion data.
9 Ram Memory Test memory for errors.
10 Display Turn on all LED’s and display segments.
11 Configuration Print the EAROM configuration data.
12 Serial Com. Port 1 Transmit/Receive loop-back test.
13 Serial Com. Port 2 Transmit/Receive loop-back test.
Diagnostic Test 1: Serial Com Port 1 - Display Input Data
This test displays serial data as it is received by serial communications port 1. The
numeric display has limited alpha display capability, however numeric and some alpha
characters are legible. If all data being received is unintelligible, the baud rate is
probably incorrect. If nothing is displayed on the display, then check the following:
1. RS232/Current loop switch on the main circuit board.
2. Cabling between the communicating units.
3. Make sure the sending unit is actually sending data.
Press the CLEAR key to exit diagnostic test 1.
Diagnostic Test 2: Serial Com Port 1 – Display Errors
This test displays the number of framing and parity errors that are detected in the input
data stream. The error count is set to zero when entering this test. New errors are
displayed as “PxxFxx” where Pxx is the number of parity errors and Fxx is the number of
framing errors. If the error count exceeds 99, the display will remain at 99.
Press the CLEAR key to exit Diagnostic test 2.
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