Technical data

Table Of Contents
Open Communication via Industrial Ethernet
System Software for S7-300/400 System and Standard Functions - Volume 2/2
A5E00739858-01
23-37
Parameters
Parameter Declaration Data Type Memory Area Description
EN_R INPUT BOOL I, Q, M, D, L Control parameter enabled to receive: when
EN_R = 1, FB 68 "TURCV" is ready to
receive.
ID INPUT WORD M, D, constant Reference to the associated connection
between the user program and the
communication level of the operating
system. ID must be identical to the
associated parameter ID in the local
connection description.
Range of values: W#16#0001 to
W#16#0FFF
LEN INPUT INT I, Q, M, D, L 1 <= LEN <= 1460: number of bytes to be
received.
The received data are immediately available
when the block is called. The amount of data
received is available in RCVD_LEN.
NDR OUTPUT BOOL I, Q, M, D, L NDR status parameter:
NDR = 0: Job not yet started or still
running.
NDR = 1: Job successfully completed
ERROR OUTPUT BOOL I, Q, M, D, L ERROR status parameter:
ERROR=1: Error occurred during
processing. STATUS provides detailed
information on the type of error
BUSY OUTPUT BOOL I, Q, M, D, L
BUSY = 1: Job is not yet completed. A
new job cannot be triggered.
BUSY = 0: Job is completed.
STATUS OUTPUT WORD M, D STATUS status parameter: Error information
RCVD_LEN OUTPUT INT I, Q, M, D, L Amount of data actually received, in bytes
DATA IN_OUT ANY I, Q, M, D Receiver area, contains address and length
The address refers to:
The process image input table
The process image output table
A bit memory
A data block
ADDR IN_OUT ANY D Pointer to the address of the sender (e.g.
P#DB100.DBX0.0 byte 8), see Structure of
the Address Information for the Remote
Partner with UDP