Configuration
3.4 Other options when configuring a CP 243-1
CP 243-1
Operating Instructions, 03/2012, C79000-G8976-C244-02
69
Byte offset in
variable memory
Description Data format Example
29 Flag byte
• Bit [0] server/client
– 0: server
– 1: client
• Bit [1] keepalive
– 0: no keepalive support
– 1: keepalive support
• Bit [2-6] not used
• Bit [7] section valid
– 0: section not used
– 1: section used
1 byte, hex
16#82:
server, keepalive support, S7
connection 0 is used and
contains valid data.
30-33 With server functionality:
IP address area of client for access
protection
16#00000000: no protection
16#XXXXXX00 client of same class C
segment is permitted
16#XXXXXXXX only exactly the same
address is permitted
With client functionality:
IP address of the S7 server
4 bytes, hex 192.12.45.22:
16#C00C2D16.
34-35 Local TSAP 2 bytes, hex 16#1000
S7 connection 1 section (If some bytes of this section are unused, pad them with16#00)
38 Flag byte
See S7 connection 0 section.
1 byte, hex See S7 connection 0 section.
39-42 IP address of the partner
See S7 connection 0 section.
4 bytes, hex See S7 connection 0 section.
43-44 Local TSAP 2 bytes, hex 16#1100
45-46 Remote TSAP 2 bytes, hex See S7 connection 0 section.
S7 connection 2 section (If some bytes of this section are unused, pad them with16#00)
47 Flag byte
See S7 connection 0 section.
1 byte, hex See S7 connection 0 section.
48-49 IP address of the partner
See S7 connection 0 section.
4 bytes, hex See S7 connection 0 section.
52-53 Local TSAP 2 bytes, hex 16#1200
54-55 Remote TSAP 2 bytes, hex See S7 connection 0 section.
S7 connection 3 section (If some bytes of this section are unused, pad them with16#00)
56 Flag byte
See S7 connection 0 section.
1 byte, hex See S7 connection 0 section.
57-60 IP address of the partner
See S7 connection 0 section.
4 bytes, hex See S7 connection 0 section.