Siemens SIMATIC NET S7-300 User Manual

7 Programming FCs (Functions) and FBs for S7 Ethernet CPs
A-201
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
7.3.2 FC6 AG_RECV / FC60 AG_LRECV
Meaning of the Block
The AG_RECV / AG_LRECV function receives the data transferred on a
configured connection from the Ethernet CP.
The data area specified for the receive data can be a memory bit area or a data
block area.
Error-free execution is indicated when the data could be received from the
Ethernet CP.
Note:
Unless otherwise stated, all the following information applies to both the FCs
AG_RECV and AG_LRECV.
Call
Call interface in FBD representation
LADDR
AG_RECV / AG_LRECV
ID
RECV
LEN
ERROR
STATUS
INT
WORD
ANY INT
WORD
NDR
BOOL
BOOL
Example in STL representation
STL Explanation
call fc 6
ID := MW 40
LADDR := W#16#0100
RECV := P#M 0.0 BYTE 100
NDR := DB 110.DBX 0.6
ERROR := DB 110.DBX 0.7
STATUS := DB 110.DBW 2
LEN := DB 110.DBW 4
//AG_RECV/AG_LRECV block call
//Connection ID acc. to configuration
//=LADDR 256 dec. in hardware configuration
//Buffer for received data
//Received code
//Error code
//Status code
//Received data length

Siemens SIMATIC NET S7-300 Specifications

General

Product Type Designation	SIMATIC NET S7-300
Mounting	DIN rail mounting
Protection Class	IP20
CPU Models	Various models available (e.g., CPU 312, CPU 314)
Communication Interfaces	MPI, PROFIBUS DP
Power Supply	24 V DC power supply required. Different power supply modules available.
I/O Modules	Digital input modules, digital output modules, analog input modules, analog output modules
Programming	STEP 7 software
Supply Voltage	24V DC or 120/230V AC (depending on model)
Digital Inputs	Available via digital input modules
Digital Outputs	Available via digital output modules
Analog Inputs	Available via analog input modules
Analog Outputs	Available via analog output modules
Communication Functions	MPI, PROFIBUS DP, Ethernet (depending on model)
Protocols	MPI, PROFIBUS DP, TCP/IP (depending on model)
Operating Temperature	0°C to 60°C
Storage Temperature	70 °C
Memory	Depends on CPU model (e.g., 32 KB to 1.5 MB)