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Table 17-3 Expansion Module – RAM Test Error Code Display on LEDs
LEDs Location
LED Error Code
Ethernet LEDs
in CPU3640
The four LEDs
begin with the
group marked E1,
as above.
ERR Code 1
ERR Code 4
ERR Code 6
17-15
Description
ERR Code 1 = Error in Flash
ERR Code 4 = Unable to boot.
Corrupted bootstrap.
ERR Code 6 = Low voltage under 12V
Where OFF LED = '0';
ON LED = '1' (very fast blink, almost
continuous);
The highest LED is the most significant.
Expansion Module
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