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From protocols to field wiring: the questions that come up most when integrating Modbus devices, explained with our own products.

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Open control cabinet in a plant room with terminal blocks and I/O modules, laptop showing register data

Published 2026-10-22EBox-RIO Remote I/O

Modbus Addressing: 40001, Function Codes and Address Conversion

What does 40001 mean, and why does the frame carry 0x0000? Learn the four Modbus data tables, their function codes and address conversion, with RIO examples.

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Building plant room aisle with switchgear panels and cable trays

Published 2026-10-20CGate Gateway

Integrating Modbus TCP and Modbus RTU — Gateway Architectures and Model Selection

Modbus RTU runs on RS-485 and Modbus TCP on Ethernet. Compare direct-conversion and data-integration gateways, and match CGate models to your site.

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