Profibus IQ plus 800, Installation And Programming Manual

Page: 12 / 22

8 Profibus Indicator Interface Installation and Programming Manual
3.0 Profibus Commands
The ProÞbus Indicator Interface uses 20-bit integer and 32-bit ßoating point commands to send and receive data
from the indicator. This section describes the input and output data formats, commands, and status bit
assignments, and provides examples of 20-bit and 32-bit command usage.
3.1 Integer (20-bit) Commands
3.1.1 Integer Command Formats
Tables 3-1 and 3-2 show the data formats used to send and receive 20-bit integer commands. Bit assignments as
follows:
R Reserved
s00-s08 Status data
cccc cccc Command number
v00–v19 20-bit integer value
See Table 3-3 on page 9 for a listed of supported commands; see Section 3.3 on page 12 for status bit
assignments.
NOTE
: Integer commands return no decimal point information to the master. For example, a value of 750.1
displayed on the indicator is returned to the master as 7501.
Bit
Byte 1 Byte 0
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Word 0 R R R R R R R R c c c c c c c c
Word 1 R R R R R R R R R R R R R R R R
Word 2 R R R R R R R R R R R R v19 v18 v17 v16
Word 3 v15 v14 v13 v12 v11 v10 v09 v08 v07 v06 v05 v04 v03 v02 v01 v00
Table 3-1. ProÞbus 20-bit Integer Output Format
Bit
Byte 1 Byte 0
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Word 0 R R R R R R R R R R R R R R R R
Word 1 s15 s14 s13 s12 s11 s10 s09 s08 s07 s06 s05 s04 s03 s02 s01 s00
Word 2 R R R R R R R R R R R R v19 v18 v17 v16
Word 3 v15 v14 v13 v12 v11 v10 v09 v08 v07 v06 v05 v04 v03 v02 v01 v00
Table 3-2. ProÞbus 20-bit Integer Input Format
DISCONTINUED