Configuring The Local/Partner Connection Path Between Two Devices; Configuring Transmit (Send) And Receive Parameters - Siemens S7-1200 System Manual

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Configuring the Local/Partner connection path between two devices

Configuring General parameters

You specify the communication parameters in the "Properties" configuration dialog of the

communication instruction. This dialog appears near the bottom of the page whenever you

have selected any part of the instruction.

Refer to "Device configuration: Configuring the Local/Partner connection path (Page 150)"

for more information.

In the "Address Details" section of the Connection parameters dialog, you define the TSAPs

or ports to be used. The TSAP or port of a connection in the CPU is entered in the "Local

TSAP" field. The TSAP or port assigned for the connection in your partner CPU is entered

under the "Partner TSAP" field.

Communication blocks (for example, TSEND_C and TRCV_C) are used to establish

connections between two CPUs. Before the CPUs can engage in PROFINET

communications, you must configure parameters for transmitting (or sending) messages and

receiving messages. These parameters dictate how communications operate when

messages are being transmitted to or received from a target device.

Configuring the TSEND_C instruction transmit (send) parameters

TSEND_C instruction

The TSEND_C instruction (Page 520) creates a communications connection to a partner

station. The connection is set up, established, and automatically monitored until it is

commanded to disconnect by the instruction. The TSEND_C instruction combines the

functions of the TCON, TDISCON and TSEND instructions.

From the Device configuration in STEP 7, you can configure how a TSEND_C instruction

transmits data. To begin, you insert the instruction into the program from the

"Communications" folder in the "Instructions" task card. The TSEND_C instruction is

displayed, along with the Call options dialog where you assign a DB for storing the

parameters of the instruction.

S7-1200 Programmable controller

System Manual, 03/2014, A5E02486680-AG

Communication

10.2 PROFINET