Siemens SIMATIC S7-1200 Manual page 138

Easy to communicate between devices
7.5 PROFINET
TCON_Param
Table 7- 3 Structure of the connection description (TCON_Param)
Byte Parameter and data type
0 ... 1 block_length
2 ... 3 id
4 connection_type
5 active_est
6 local_device_id
7 local_tsap_id_len
8 rem_subnet_id_len
9 rem_staddr_len
10 rem_tsap_id_len
11 next_staddr_len
138
Description
UInt Length: 64 bytes (fixed)
CONN_OUC Reference to this connection: Range of values: 1 (default) to 4095.
(Word) Specify the value of this parameter for the TSEND_C, TRCV_C or
TCON instruction under ID.
USInt Connection type:
17: TCP (default)
•
18: ISO-on-TCP
•
19: UDP
•
Bool ID for the type of connection:
TCP and ISO-on-TCP:
•
–
–
UDP: FALSE
•
USInt ID for the local PROFINET or Industrial Ethernet interface:
1 (default)
USInt Length of parameter local_tsap_id used, in bytes; possible values:
TCP: 0 (active, default) or 2 (passive)
•
ISO-on-TCP: 2 to 16
•
UDP: 2
•
USInt This parameter is not used.
USInt Length of address of partner end point, in bytes:
0: unspecified (parameter rem_staddr is irrelevant)
•
4 (default): Valid IP address in parameter rem_staddr (only for
•
TCP and ISO-on-TCP)
USInt Length of parameter rem_tsap_id used, in bytes; possible values:
TCP: 0 (passive) or 2 (active, default)
•
ISO-on-TCP: 2 to 16
•
UDP: 0
•
USInt This parameter is not used.
FALSE: Passive connection
TRUE: Active connection (default)
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Manual, 03/2014, A5E02486774-AF