VEGA VEGACOM 557 VEGA ASCII protocol - Manual (Page 26)

26 VEGACOM 557 VEGA ASCII
4.1 Enquiry for VEGAMET with three or less values per instrument
Low resolution = Switch 2.2 = OFF
VEGAMET series 509 and 512 instruments have max. 3 DCS outputs. Series 513, 514 and 515
instruments can assign max. 7 DCS outputs. If max. 3 DCS outputs are used with these in-
struments, the following telegram can be used for data transmission:
Telegram from processing system to VEGACOM 557
Identifier: 1 character, optional "P“ or "p“
End identification: 1 character Chr (13) = CR = Carriage Return
Total length of the telegram: 5 characters
Answer of VEGACOM 557
Start character: S1 = 1 character "=“
Start character: S2 = "#“
Separating character: T1, T2, T3 = per 1
character "p“
Total length of the telegram: 32 characters
(structure also value for DCS value 2 and 3)
Error information
0: No error
1: Error on DCS 1
2: Error on DCS 2
3: Error on DCS 1+2
4: Error on DCS 3
5: Error on DCS 1 + 3
6: Error on DCS 2 + 3
7: Error on DCS 1,2 + 3
"-“ for negative values
" " for positive values
7 1 2 3 4 5 6
3 positions in front of the decimal point
1 decimal point
1 position after the decimal point
1 during simulation
" " during operation
Data image in VEGACOM 557
Address Address End
Identifier VEGACOM VEGAMET identification
No. of bytes 1 1 2 1
Range (ASCII) p (P) 0..9 01..15 CR
Example p 1 02 CR
Addr Addr DCS DCS DCS Error End
S1 COM MET S2 value1 T1 value2 T2 value3 T3 info identification
No. of bytes 1 1 1 1 7 1 7 1 7 1 1 2
Range (ASCII) = 0..9 01..15 # ASCII p ASCII p ASCII p 0..7 CRLF
Example = 1 02 # 17.2 p 38.4 p 45.7 p 0 CRLF