Parameter - Ua_Connect - Siemens SIMATIC S7-400 Operating Instructions Manual

Programming the OPC UA client blocks
5.3 FB230 UA_Connect
Call interface
Figure 5-2
5.3.2

Parameter - UA_Connect

Block parameters
The following table explains the formal parameters of the program block.
Table 5- 1 Parameters of the block UA_Connect
Parameter Declaration
Execute IN
ServerEndpointUrl IN
SessionConnectInfo IN
Timeout IN
ConnectionHdl OUT
Done OUT
Busy OUT
84
Call interface in FBD representation
S7 data type Range of values
BOOL 0, 1
STRING Max. 254 charac-
ters
UDT See "Meaning"
TIME 5000 .. 120000
DWORD 1 .. 5
BOOL 0, 1
BOOL 0, 1
Meaning
A rising edge 0 → 1 at the parameter starts
processing of the block.
Address (URL) of the connection partner (serv-
er). Only IPv4 addresses are permitted.
Connection information, see UDT751 UASes-
sionConnectInfo (Page 85).
Maximum time for establishing the connection
in milliseconds. If the value is exceeded, pro-
cessing of the block is aborted with error num-
ber B0007001.
If a value is entered outside the permitted
range, the default value of 60000 (60 seconds)
is used.
Unique identifier of an established connection
It is required by other blocks as an input pa-
rameter.
Status parameter for block processing
0: Block execution aborted, not yet complet-
•
ed or not yet started
1: Block processing completed without er-
•
rors
Status parameter for block processing
0: Block not being processed
•
1: Block currently executing
•
Operating Instructions, 01/2017, C79000-G8976-C427-02
CP 443-1 OPC UA