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09/02
Byte offset in
variables mem-
ory
S7 connection 6 section (If not all bytes are used in this section, they should be filled in with
16#00)
83
Flag byte
See S7 connection 0 section.
84-87
IP address of partner
See S7 connection 0 section.
88-89
Local TSAP
90-91
Remote TSAP
S7 connection 7 section (If not all bytes are used in this section, they should be filled in with
16#00)
92
Flag byte
See S7 connection 0 section.
93-96
IP address of partner
See S7 connection 0 section.
97-98
Local TSAP
99-100
Remote TSAP
STEP 7 Micro/Win Server section
101
Flag byte
Bit [0] Server
Bit [1] Keep Alive
Bit [2-6] Not in use
Bit [7] Section valid
102-105
Internal use
CRC section
106-107
CRC over all CDB bytes without the
CRC section itself
Table 3: CDB structure
CP 243-1
J31069-D0428-U001-A1-7618
Description
0: Server
1: Not supported
0: No Keep Alive support
1: Keep Alive support
0: Not supported
1: Section in use
Data format
1 byte hex
See S7 connection 0
section.
4 bytes hex
See S7 connection 0
section.
2 bytes hex
16#1600
2 bytes hex
See S7 connection 0
section.
1 byte hex
See S7 connection 0
section.
4 bytes hex
See S7 connection 0
section.
2 bytes hex
16#1700
2 bytes hex
See S7 connection 0
section.
1 byte hex
16#82:
Server, Keep Alive
support,
the STEP 7 Micro/WIN
Server section is in
use and contains valid
data.
4 bytes hex
2 bytes hex
Configuration
Example
41
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