Modbus TCP Explicit Messaging Using SEND_REQ
(Original Document)
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Overview
This section shows you how to configure
SEND_REQ
function block parameters for Modbus TCP explicit messages.
What Is in This Section?
This section contains the following topics:
Modbus TCP Explicit Messaging Request Codes
Configuring Modbus TCP Explicit Messaging Using SEND_REQ
Modbus TCP Explicit Message Example: Read Registers
Modbus TCP Explicit Message Example: Write Registers
Modbus TCP Explicit Message Example: Read Holding Registers
Modbus TCP Explicit Message Example: Write Multiple Registers
