Modbus Data Types; Modbus Register Mapping; Modbus Fixed Information Registers; Table 6-10. Data Types - Advanced Energy AE 600 User Manual

Table 6‑9. Format for Return Slave ID command (Continued)
CRC LSB
CRC MSB

MODBUS DATA TYPES

Modbus data types used with the AE 500 unit are shown in the following table.
Table 6‑10. Data types
Data Type
ASCII
UINT16
SINT16
UINT 32
(requires two
registers)
SINT32
(requires two
registers)
FLOAT
(requires two
registers)

MODBUS REGISTER MAPPING

The following tables list the Modbus registers with their location and a description of
the data stored in the register.

Modbus Fixed Information Registers

570-1001791-05A
Response Information
Two ASCII characters per register
For a text string the left-most character is the lowest register
number.
Unsigned integer, 16 bits
Range: 0 to 65,536
Signed integer, 16 bits
Range: –32,767 to +32,767
Unsigned integer, 32 bits
Range: 0 to 4,294,967,295
Signed integer, 32 bits
Range: –2,147,483,647 to +2,147,483,647
IEEE 754 standard 32-bit floating point number
High order 16 bits in the first of the two registers. Low order 16
bits in the second register. (Big Endian)
Data Monitoring and Controls
Advanced Energy® AE 500 Inverter
Response Layout
Description
xx
xx
6‑19