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

Call interface
Figure 5-5
5.6.2

Parameter - UA_NodeReleaseHandleList

Block parameters
The following table explains the formal parameters of the program block.
Table 5- 7 Parameters of the block UA_NodeReleaseHandleList
Parameter Declaration
Execute IN
ConnectionHdl IN
NodeHdlCount IN
NodeHdls IN
Timeout IN
Done OUT
Busy OUT
CP 443-1 OPC UA
Operating Instructions, 01/2017, C79000-G8976-C427-02
Call interface in FBD representation
S7 data type Range of values
BOOL 0, 1
DWORD 1 .. 5
WORD 1
ARRAY of 0 .. 4 294 967 295
DWORD
TIME 5000 .. 120000
BOOL 0, 1
BOOL 0, 1
Programming the OPC UA client blocks
5.6 FB233 UA_NodeReleaseHandleList
Meaning / remarks
A rising edge 0 → 1 at the parameter starts
processing of the block.
Connection identifier supplied by UA_Connect
Number of elements in the data area von
"NodeHdls". The number of must be 1.
Array of the IDs of the handles to be canceled.
If execution of the block is successful, the han-
dles are canceled on the server and therefore
become invalid.
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.
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
•
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