Siemens SIMATIC RI 45 PIII Series, Manual

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RI 45 PIII, Manual
C79000-G7076-C817-01
2.13 Diagnostic Messages (Port 80)
When the RI 45 PIII 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.
In addition, the individual self-test steps are output at I/O port 80h. The
optional SafeCard allows these outputs to be displayed in hexadecimal code
at the front of the device.
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 BB BBB Beeps
3 6 Hexadecimal code
Check shutdown code Meaning
Motherboard