Siemens SIMATIC ET 200SP Equipment Manual page 36

Programming
5.1 Programming
Overview of the instructions
Communication between the CPU, the communications module and a communication
partner takes place by means of special instructions and protocols that support the
corresponding communications modules.
The instructions process the exchange of data between the CPU and the communications
module. They must be called cyclically from the user program. When the instruction library
PtP-Communication as of V4.0 is used, the instructions detect independently whether the
Performance option is active and adapt the method for the data exchange.
The transmission protocols are implemented on the communications module. The protocol is
used to adapt the interface of the communications module to the interface of the
communication partner.
Instruction
Port_Config
Send_Config
Receive_Config
P3964_Config
Send_P2P
Receive_P2P
Receive_Reset
Signal_Get
Signal_Set
Get_Features
Set_Features
USS_Port_Scan
USS_Drive_Control /
USS_Drive_Control_31
USS_Read_Param /
USS_Read_Param_31
USS_Write_Param /
USS_Write_Param_31
Modbus_Comm_Load
Modbus_Master
Modbus_Slave
The instructions are part of STEP 7 (TIA Portal). The instructions are available in the "Instructions"
task card under Communication > Communication processor.
Additional information
Additional information on programming the communications modules is available in the
function manual CM PtP - Configurations for point-to-point connections
(http://support.automation.siemens.com/WW/view/en/59057093) and in the STEP 7
(TIA Portal) information system.
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Meaning
Dynamically assigning the basic interface parameters
Send configuration
Dynamically assigning serial send parameters of a port
Receive configuration
Dynamically assigning serial receive parameters of a port
Protocol configuration
Dynamically configuring the parameters of procedure 3964(R)
Send data to a communication partner
Receive data from a communication partner
Clear receive buffer of the communications module
Read RS232 accompanying signals
Set RS232 accompanying signals
Read the extended functions supported by the communications module
Set the extended functions supported by the communications module
Communication via the USS
Exchange data with a drive
Readout parameters from the drive
Change parameters in the drive
Configure the port of the communications module for Modbus RTU
Communicate as Modbus master via the PtP port
Communicating as Modbus slave via the PtP port
CM PtP communications module (6ES7137-6AA01-0BA0)
Equipment Manual, 03/2021, A5E03790792-01