Siemens SIMATIC S7-1200 - Page 896

Communication
11.2 PROFINET
S7-1200 Programmable controller
896 System Manual, V4.2, 09/2016, A5E02486680-AK
Table 11- 40 TUSEND and TURCV data types for the parameters
Parameter and type
Data type
Description
REQ
(TUSEND)
IN Bool
Starts the send job on a rising edge. The data is transferred from
the area specified by DATA and LEN.
EN_R
(TURCV)
IN Bool
• 0: CPU cannot receive.
• 1: Enables the CPU to receive. The TURCV instruction is
ready to receive, and the receive job is processed.
ID IN Word Reference to the associated connection between the user pro-
gram 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 IN UDInt Number of bytes to be sent (TUSEND) or received (TURCV).
• Default = 0. The DATA parameter determines the length of
the data to be sent or received.
• Otherwise, range of values: 1 to 1472
DONE
(TUSEND)
IN Bool Status parameter DONE (TUSEND):
• 0: Job is not yet started or still running.
• 1: Job completed without error.
NDR
(TURCV)
OUT Bool Status parameter NDR (TURCV):
• 0: Job not yet started or still running.
• 1: Job has successfully completed.
BUSY OUT Bool
• 1: Job is not yet completed. A new job cannot be triggered.
• 0: Job has completed.
ERROR OUT Bool Status parameters with the following values:
• 0: No error
• 1: Error occurred during processing. STATUS provides de-
tailed information on the type of error.
STATUS OUT Word
Status information including error information. (Refer to the Error
and Status condition codes in the table below.)
RCVD_LEN
OUT
UDInt
Number of bytes received (TURCV)