FanAm MD60 AC Drive User Manual

Page 119

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RS485 (MDI) Protocol

F-3

Supported Modbus Function Codes

The peripheral interface (MDI) used on MD60 drives supports some
of the Modbus function codes.

Important:

Modbus devices can be 0-based (registers are
numbered starting at 0) or 1-based (registers are
numbered starting at 1). Depending on the Modbus
Master used, the register addresses listed on the
following pages may need to be offset by +1. For
example, Logic Command may be register address
8192 for some master devices (e.g., ProSoft 3150-
MCM SLC Modbus scanner) and 8193 for others (e.g.,
PanelViews).

Table F.2 – Supported Modbus Function Codes

Modbus Function Code

Command

03

Read Holding Registers

06

Preset (Write) Single Register

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