Getting Started - Siemens SIMATIC S7 Manual

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Getting Started

Procedure
OPEN MODBUS / TCP communication via CP343-1 and 443-1
2XV9450-1MB00; Manual edition 4.3
1. Install "OpenModbusTCP CP".
=> Section 3.1
2. Parameterize the connection parameters regarding your requirements
(IP-address, port number, etc.).
=> Section 3.2 to 3.4
3. Insert the Modbus function blocks into your SIMATIC project.
=> Section 3.6
4. Call the Modbus block FB108 in the required OBs.
=> Section 5.1
5. Parameterize the Modbus block for initialization (client/server, DB areas,
Modbus addresses) and runtime.
=> Section 5.2
6. Load the user program into the PLC and license the Modbus block for this
CPU.
=> Section 4
Getting started
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