Siemens SIMATIC S7-400 Operating Instructions Manual page 91

Parameter Declaration
NodeHdls OUT
Done OUT
Busy OUT
Error OUT
ErrorID OUT
NodeErrorIDs OUT
CP 443-1 OPC UA
Operating Instructions, 01/2017, C79000-G8976-C427-02
S7 data type Range of values
ARRAY of 0 .. 4 294 967 295
DWORD
BOOL 0, 1
BOOL 0, 1
BOOL 0, 1
DWORD See "Meaning"
ARRAY of See "Meaning"
DWORD
Programming the OPC UA client blocks
5.5 FB232 UA_NodeGetHandleList
Meaning
Array of the handles that the OPC UA server
assigns as the reply to the client's query. The
handles serve to uniquely identify the item on
the server.
The handles remain valid until they are re-
leased by calling the
UA_NodeReleaseHandleList block, in other
words become invalid.
When a session is terminated, the CP cancels
all registered node handles of this session.
The parameter is used for the input parameter
"NodeHdls" of the "UA_ReadList" and
"UA_WriteList" blocks.
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
•
Error code
0: No error
•
1: An error has occurred. See "" parameter
•
"ErrorID".
Output of the error number when "Error" = 1.
For the significance of the numbers, refer to the
section Error numbers (Page 107).
Contains the error numbers for all elements of
the data area of "NodeIDs".
For the significance of the numbers, refer to the
section Error numbers (Page 107).
91