Siemens Simantic Net NCM for Industrial Ethernet S7 - Manual (Page 164)

Programming FCs (Functions) and FBs for S7 Ethernet CPs
164
SIMATIC NET NCM S7 for Industrial Ethernet
C79000-G8976-C129–06
Explanation of the Formal Parameters
The following table explains all the formal parameters for the AG_RECV /
AG_LRECV function.
Parameter Declara-
tion
Type Possible
Values
Remarks
ID INPUT INT 1,2...16 The connection number of the ISO transport
connection is specified in the ID parameter (see
Configuration Section 4.3.1)
LADDR INPUT WORD Module base address
When you configure the CP with STEP 7
hardware configuration, the module base
address is displayed in the configuration table.
Specify this address here.
RECV INPUT ANY Specifies the address and length.
The address of the data area refers to one of
the following:
– Process image area
– Bit memory
– Data block area
Note on length:
Performance is improved in transfer of data
records up to 212 bytes if you also restrict the
length to 212 with the RECV parameter.
NDR OUTPUT BOOL 0: –
1: new data This parameter indicates whether new data
were received.
For the meaning of this parameter in
conjunction with the ERROR and STATUS
parameters, refer to the following table.
ERROR OUTPUT BOOL 0: –
1: error Error code
For the meaning of this parameter in
conjunction with the DONE and STATUS
parameters, refer to the following table.
STATUS OUTPUT WORD see following
table Status code
For the meaning of this parameter in
conjunction with the NDR and ERROR
parameters, refer to the following table.