2
E4N V6.2
MARPOSS:
INSTALLATION AND USE
SELF-TEST ROUTINE:
DISPLAY SYSTEM TEST:
The two displays and all of the LED's are lit up in sequence to show the entire LED scale lit up in
RED, YELLOW and GREEN.
EPROM AND E2PROM CHECKSUM:
This test checks that the sum of bytes is equal to a preset value, and that the EPROM has not
been accidentally modified.
RAM TEST:
the system sends a value to the RAM and then re-reads the contents of the RAM to check that
the value has been received.
DIGITAL-ANALOG CONVERTER TEST:
This test calibrates and zero-sets the converter.
AMPLIFIER MODULE TEST:
This test checks that the module is correctly inserted and checks that the programming of the
E4N column is compatible with that of the amplifier module.
LED SCALE TEST:
This test checks that the CPU driving the LED scale is operating correctly and is compatible with
the central CPU.
SW VERSION
INSTALLED ON
THE COLUMN
COLUMN IDENTIFI-
CATION DATA
two messages in succession:
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