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P485 MODBUS TO PROFIBUS CONVERTER – USER GUIDE 6–1
GE Consumer & Industrial
P485 Modbus to Profibus
Converter
Chapter 6: Frame and command
editors
Frame and command edit ors
Frame editor
DESCRIPTION The frame editor makes it easier to add specific custom commands. The same parameters
are available in both the frame editor and the parameter window, but in the frame editor
presents the message frames in a more visual manner than the navigation / parameter
window.
Figure 6-1: Frame editor window
EXAMPLE Consider the following frame. The first byte holds the slave address (0x01) followed by the
function code (0x06). The next word is the register address of the device where data is to be
written (0x1200). This is a query command – the data is to be sent to the slave device and
therefore is to be fetched from the OUT area starting at 0x0202. The next word indicates
the data size (in bytes) to be written (in this case, 0x0002).