Siemens 620 Manual De Usuario
Error Diagnosis
6-8
SIMATIC Box PC 620 Manual
A5E00131465-01
6.8
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.
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.
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
BBB
BBB
B
Beeps
2
8
Hexadecimal code
Check system memory
Meaning
Special codes
In addition to the subsequent beep codes listed, there are the following special
codes:
codes:
3x short
If the INSERT button is pressed during system start:
the Onboard Device Installation is skipped. The Onboard
Graphics is used as standard output.
the Onboard Device Installation is skipped. The Onboard
Graphics is used as standard output.
1x long 8x short
Error occurs when reading the MPI system information:
please turn to your customer support.
please turn to your customer support.
4x short
MPI EPROM is programmed for the first time.
1x long 5 x short Ethernet Error: please turn to your customer support.