Eaton Electrical PROFIBUS-DP EZ204-DP - Manual (Page 124)

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EZ800/EZD Control Commands
MN05013001E 120
. EZ800
manual search term: MN05013004E. EZD manual search
term: MN05013005E.
Read/write function block
data
General notes
Always note the following when working with function blocks:
• The relevant data is transferred in Intel format. In other
words, the first byte is the low byte (Byte 5) and the last byte
(byte 8) the high byte.
• The maximum data length is 4 bytes. All values must be
transferred in hexadecimal format.
• All 32-bit values are treated as signed values. When
transferring 32-bit values, ensure that the appropriate value
range is suitable for long integers, i.e. signed.
32-bit value: –2147483648 .. 0 .. +2147483647
Please also note the relevant description of the function
blocks provided in the EZ800 manual and the EZD manual.
The latest edition of these manuals are available as PDF
files from the Internet at: www.EatonElectrical.com