Technical data

Error Diagnosis
7-3
SIMATIC Box PC 620 Manual
C79000-G7076-C639-02
7.2 Self-Test of the SIMATIC Box PC 620 before Booting
When the PC is powered up, it runs a self-test (POST = Power On Self Test). If the
POST detects a fault, it outputs the sequence of beeps (beep code) assigned for
the fault. Each beep code consists of 2 x 2 sequences.
Conversion table for the beep codes to hexadecimal representation:
Beeps Hex-Code
B B 0
B BB 1
B BBB 2
B BBBB 3
BB B 4
BB BB 5
BB BBB 6
BB BBBB 7
BBB B 8
BBB BB 9
BBB BBB A
BBB BBBB B
BBBB B C
BBBB BB D
BBBB BBB E
BBBB BBBB F
Example:
B BBBB BBB BBB Beeps
3 6 Hex-Code
Check shutdown code Meaning