Byte order - AQT530

AQT530 Configuration Guide

Document code
M212572EN
Revision
D
Language
English (United States)
Product
AQT530
Document type
User guide

Individual registers follow the Modbus standard big endian byte order for 16-bit values.

Values greater than 16 bits comprise multiple registers. These values are organized as follows.

32-bit values

In this application programming interface (API), 32-bit values are supported by the means of 2 consecutive 16-bit registers. The byte order for the 32-bit values is middle-endian: bytes within words are in big-endian order, while words in multi-word values are in little-endian order.

Figure 1. Byte order for 32-bit values

String fields

Several string type fields are available in this API, for example serial numbers. String fields consist of 1-byte ASCII characters packed into multiple 16-bit registers, 2 characters each.

Figure 2. Byte order for string fields