VEGA VEGASCAN 850 VEGA-ASCII signal output - Manual (Page 11)

VEGA-ASCII signal output VEGASCAN 850 11
Enquiry of measured values
3.4 Enquiry as single value with address
Low resolution
This telegram reads out exactly one DCS value. In addition to the one described in chapter
"3.3 Enquiry as block with address“ an address from 0 to 9 is transferred, so that several
VEGASCAN 850 can be operated on one BUS system (e.g. via a RS 485 interface).
Answer from VEGASCAN 850
Start character: S1 = 1 character "=“
Address: Adr = 1 character VEGASCAN 850 address
Separator character: T1 = 1 character ",“ (comma)
Start character: S2 = 1 character "#“
Total length of the telegram: 14 or 15 characters
Telegram from processing system to VEGASCAN 850
1 repetition
1 2 3 4 5 6
3 positions in front of the comma
1 decimal point
1 position after the comma
"-“ with negative values
" " with positive values
valid measured value
1 2 3 4 5
‘FAULT’
Fault
Identifier: 1 character, "%“
T1: 1 character ",“ (comma)
End identification: 1 character Chr (13) = CR = Carriage Return
Total length of the telegram: 7 characters
DCS DCS End
S1 Adr T1 no. S2 value2 identification
Number of bytes 1 1 1 3 1 5-6 2
Range (ASCII) = 0..9 , 001..060 #
DCS value
or fault %CR
Example = 2 , 001 # -067.3 %CR
DCS End
Identifier Address T1 number identification
Number of bytes 1 1 1 3 1
Range (ASCII) % 0..9 , 001..060 CR
Example % 2 , 001 CR