Siemens SIMATIC NETS7-1200 Operating Instructions Manual page 54

Configuration
5.4 Configuring the telecontrol instructions
The destination address (connection partner) for the data to be sent is configured in the
TC_CON instruction.
Call interface in FBD representation
Explanation of the formal parameters
The following table explains all the formal parameters for the TC_SEND instruction.
Parameter Declaration
REQ INPUT
ID INPUT
InterfaceID INPUT
LEN INPUT
DATA INOUT
ENO OUTPUT
BUSY OUTPUT
DONE OUTPUT
54
Data type Possible values
BOOL 0, 1
CONN_OUC 1...07FF
HW_ANY
UINT 1...2048
VARIANT
BOOL 0: Error
1: Error-free
BOOL 0: Execution of the instruction
not started, completed or
aborted
1: The instruction is executing
BOOL 0: -
1: The instruction executed
successfully
h
Operating Instructions, 09/2011, C79000-G8976-C247-02
Description
The instruction is started and the status
codes initialized on a rising edge.
Updating of the DONE, ERROR and
STATUS status codes when there is a
positive edge.
Reference to the relevant connection
Reference to the interface of the local
CP 1242-7 (see STEP 7 > CP
configuration > Telecontrol interface >
"Hardware identifier")
Number of bytes of data to be sent,
maximum 2048
Address reference to the send data area
of the CPU
Enable output
If there is a runtime error with the
instruction, ENO = 0 is set.
Display of the processing status of the
instruction
This parameter indicates whether or not
the job was completed without errors.
For the meaning in conjunction with the
parameters ERROR and STATUS, refer
to Codes of the instruction.
CP 1242-7