Honeywell HC900 User Manual

Page 27

Modbus/TCP & Modbus RTU Function Codes

Fixed Modbus Map

Revision 10

HC900 Hybrid Controller Communications User Guide

12/07

Table 4-3 Maximum Number of Registers Allowable per Request

Function

Code

Max. No. of

Registers

1, 2

2040 bits

3, 4

127 Registers
63 Floats

5 1

Coil

6 1

10h 127

Registers

63 Floats