Siemens SIMATIC NET S7-300 Manual page 229

Reserved Port Numbers
The following local port numbers are reserved; you should not use these for other
purposes in the connection project engineering.
Table 7-8
Protocol
TCP
TCP
TCP
TCP
TCP
UDP
UDP
UDP
UDP
UDP
UDP
Condition Codes
The following table shows the condition codes formed by the DONE, ERROR and
STATUS parameters that must be evaluated by the user program.
Table 7-9 Condition Codes for FB55 IP_CONFIG
DONE ERROR
General codes relating to job execution
1 0
0 0
Errors detected on the interface between CPU and CP.
0 1
0 1
0 1
0 1
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
7 Programming FCs (Functions) and FBs for S7 Ethernet CPs
FB55 IP_CONFIG - continued
Reserved Port Numbers
Port number
20, 21
25
80
102
135
161
34964
65532
65533
65534
65535
STATUS
0000 Job completed without errors
H
8181 Job active
H
S
80A4 Communication error on the K -bus
H
or
S
Data error: Configuration by the user program is not set.
80B1 The amount of data to be sent exceeds the upper limit permitted for this
H
service. (upper limit = 16 Kbytes)
80C4 Communication error
H
The error can occur temporarily; it is usually best to repeat the job in the
user program.
80D2 Configuration error
H
The module you are using does not support this service.
Service
FTP
SMTP
HTTP
RFC1006
RPC -DCOM
SNMP_REQUEST
PN IO
NTP
NTP
NTP
NTP
Meaning
A -229