Data Exchange; Description - GE D485 Instruction Manual

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Grid Solutions

DESCRIPTION

D485 MODBUS TO DEVICENET CONVERTER – USER GUIDE
D485 Modbus to DeviceNet
Converter
Chapter 3: Data Exchange

Data Exchange

Overview
Data from the fieldbus (DeviceNet) and the sub network (Modbus) is stored in an internal
memory buffer. This is a easy method for data exchange where the fieldbus control
system simply reads and writes data to pre-defined memory locations, and the serial sub
network also use the same internal memory buffer to read and write data.
Refer to Figure 3-1: Data exchange overview on page 3–2 for additional details.
3–1