Rockwell-automation MD65 User Manual Version 2.0 Instrukcja Użytkownika Strona 151

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RS485 (MDI) Protocol
F-3
Supported Modbus Function Codes
The peripheral interface (MDI) used on MD65 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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