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Version: current

Modbus TCP

Description#

The equipment type Modbus TCP is a way of communicating with Modbus devices using TCP. The Modbus TCP can be set up to both write and query a device with custom commands set up specifically for a device.

Ethernet

If you want help to get started with Modbus RTU check out our getting started guide on Modbus RTU below

Getting started with Modbus TCP

Attributes#

AttributeValue
NameModbus (TCP)
Manufacturer
Model
Serial Number
Internal Number
IP Address
Port502
Client Address1
Byte OrderBig Endian
Word OrderBig Endian
Commands

Name#

Name specifies the name of the block.

Manufacturer#

Manufacturer is an optional specification you can write.

Model#

Model is an optional specification you can write.

Serial Number#

Serial Number is an optional specification you can write.

Internal Number#

Internal Number is an optional specification you can write.

IP Address#

IP Address is the device IP address.

Port#

Port is the TCP communications port for Modbus, which default is 502.

Client Address#

Client Address is the Modbus device address which you can normally find in the manual of the device. Default is 1.

Byte Order#

Byte Order is the order or sequence of bytes. It is default Big Endian but can also be set to Little Endian. The manual of the device should specify the byte order.

Word Order#

Word Order is the order or sequence of words. It is default Big Endian but can also be set to Little Endian. The manual of the device should specify the byte order.

Commands#

Commands will contain all specified commands of the device. To learn more about commands and how to add them, click below.

Learn more about Modbus Commands

Modbus commands are specified the same way for all types of Modbus devices.

More Info#

Learn more about Modbus