VEGA VEGASCAN 850 Profibus DP signal output - Manual (Page 12)

12 Profibus DP signal output VEGASCAN 850
VEGASCAN writes the following answer telegram into the 6 Byte inputs of the Profibus master:
6 Byte
Byte1 Byte2 Byte3 Byte4 Byte5 Byte6
Status High-Word Low-Word
Add. info
0xYY 1...60 0x00 0x00 0xHH 0xLL
PC/DCS
number
PC/DCS measured value
Format of the VEGASCAN answer
Status:
0x00 = valid measured value
0x80 = old measured value (probably con-
nection interrupted)
0xFE = no PC/DCS value available (not
configured)
0xFF = general error
PC/DCS measured value
0xHH = High-Byte of the measured value
0xLL =
Low-Byte of the measured value
Value range comprises max. +32768 to
-32767.
Data image in VEGASCAN 850
Measured value image in mode 6E6A
In this operating mode, the PC/DCS values can be read out individually in VEGASCAN, i.e. the
Profibus master requests a measured value and this measured value is delivered by
VEGASCAN.
Control command 0xCD
When enquiring with this control command, VEGASCAN answers with an individual PC/DCS
value. The enquiry telegram written by the Profibus master into the 6 byte outputs is struc-
tured as follows.
Byte1 Byte2 Byte3 Byte4 Byte5 Byte6
Control
command
reserved
PC/DCS
number
reserved reserved reserved
0xCD 1...60 0xFF 0xFF 0xFF 0xFF
6 Byte
Format of the enquiry acc. to single PC/DCS values