TROUBLESHOOTING
MODULE FUNCTIONAL TESTS
6 - 8
I-E96-301B
®
If halt on error with display is selected a nd a specific test fails,
an error code will be displayed by the status LED and repeated
every six seconds. Refer to Table
for all of the error codes.
Example:
CONTINUE - DO NOT DISPLAY ERROR
When SW1 pole position 2 is set to a zero during diagnostics
mode, the slave will loop on running the selected tests. Looping
continues even if an error occurs. This mode is used to loop on
a particular component in the event of a suspected failure.
If the continue - do not display error mode is selected, the LED
will show solid green during the first iteration of the selected
tests. During the second test iteration, the LED will be off. The
LED will blink at a rate determined by the selected tests. For
example, if all tests are selected, the LED will repeat a
sequence of being on for ten seconds and off for ten seconds.
Dipswitch Configurable Diagnostics
The diagnostic tests check these slave components:
•
Slave Bus Address Switch
•
Watchdog Timer
•
Microprocessor
•
ROM
•
Static RAM
•
Dual-Port RAM (Slave read/write accesses)
•
Nonvolatile RAM
•
Individual Channel Voltage References
•
A/D Internal Voltage References
Test Procedure
DIPSWITCH TEST
1. Unplug the slave, set SW1 to the Dipswitch Test Mode as
shown in Table
, and insert the slave into the powered MMU
slot. The status LED should immediately turn GREEN and stay
GREEN.
Error Code
1
Green LED Blink Sequence
10
1 long blink (1 sec.)
0 short blinks (
1
/
3
sec.)
11
1 long blink (1 sec.)
1 short blink (
1
/
3
sec.)
12
1 long blink (1 sec.)
2 short blinks (
1
/
3
sec.)
NOTE:
1. An error code of 30 will be followed by an error code indicating which input channel is not func-
tional. For example, an error code of 30 followed by an error code of 7 indicates that channel 7 is
not functional.