Siemens SIMATIC Box PC 820 User Manual

2-65
Box PC 820 / PC FI45 V2, Manual
A5E00051531-03
2.15 Diagnostic Messages (Port 80)
When the SIMATIC 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.
In addition, the individual self-test steps are output at I/O port 80h. The optional
SafeCard allows these outputs to be displayed in hex 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 BBB BBB Beeps
3 6 Hex Code
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Siemens SIMATIC Box PC 820 Specifications

General

Brand	Siemens
Model	SIMATIC Box PC 820
Category	Industrial PC
Language	English