Siemens Error Code P499 Explanation
The P499 error code is used to show any errors that are generated by the connected PLC. The
P499 error message includes a four digit hexadecimal value displayed at the end of the message.
This value can be looked up in the specific PLC's error tables to determine the cause of the error.
The possible PLC generated error codes for the Siemens PPI communication protocols
breakdown into a four digit hexadecimal value as shown in the following diagram.
Siemens Error Code P499 Message Example:
®
Siemens PPI Error Code P499 Breakdown
Relay
Main response
error flag
code
16-bit
0
0
0
0
0
0
Word
15
14
13
12
11
10
P499 Error Code Message
0
Displayed Hexadecimal Value
P499: Recv. Err Code 0006
Start
EA1-TCL-M Hardware User Manual, 2nd Ed., 10/10
Appendix A: Panel & PLC Error Code Tables
Sub response
code
0
0
0
0
0
0
0
1
1
0
9
8
7
6
5
4
3
2
1
0
Example of a Siemens PPI error
for a "Address out of range." error.
0
0
6
hex
Stop
A
A–29
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