Technical data

Open Communication via Industrial Ethernet
System Software for S7-300/400 System and Standard Functions - Volume 2/2
23-34 A5E00739858-01
Parameters
Parameter Declaration Data Type Memory Area Description
REQ INPUT BOOL I, Q, M, D, L Control parameter REQUEST, initiates the
transmission at rising edge.
At the first call with REQ=1, bytes are
transmitted from the area specified by the
DATA parameter.
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 Number of bytes to be sent with the job
Range of values: 1 to 1460
DONE OUTPUT BOOL I, Q, M, D, L DONE status parameter:
• 0: Job not yet started or still running.
• 1: Job executed without 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.
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
STATUS OUTPUT WORD M, D STATUS status parameter: Error information
DATA IN_OUT ANY I, Q, M, D Sender 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 receiver (e.g.
P#DB100.DBX0.0 byte 8), see Structure of
the Address Information for the Remote
Partner with UDP