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Data TypesModbus Term

INT32 (32-bit Signed Integer)

A 32-bit signed integer spanning two consecutive Modbus registers.

Definition

INT32 is a two's-complement signed 32-bit integer stored across two consecutive registers. Range is −2,147,483,648 to +2,147,483,647. Use cases include signed energy values, position feedback from drives, and any measurement that can be negative with high precision.

Quick Facts

Range−2,147,483,648 to +2,147,483,647
Size2 registers (4 bytes)
EncodingTwo's complement

Related Terms

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ModPackQT Modbus Glossary · Updated 2026