Instruction Manual

VEGACOM 557 VEGA ASCII 43
4.10 Enquiry for the contact inputs and outputs on LOGBUS
During operation on LOGBUS via VEGACOM 557, the contacts are assigned by means of the
module address. The enquiry is the made with the module address.
Start character: S1 = 1 character "=“
Address: Addr = 1 character VEGACOM 557 address
Start character: S2 = 1 character "#“
Status: Validity of the contact value,
0 = value valid, 1 = value invalid.
End identification: CR LF = Carriage Return + Linefeed
Total length of the telegram: 15 characters
Contact value binary coded
32768 = 10000000 00000000
Identifier: 1 character, "R“
T1: 1 character "L“
End identification: 1 character Chr (13) = CR = Carriage Return
Total length of the telegram: 5 or 8 characters
Telegram from processing system to VEGACOM 557 for enquiry of a module
Telegram of the processing system to VEGACOM 557 for enquiry of several modules
Answer of VEGACOM 557
S1 : Status for contacts; 0 - contact information is valid, 1 - contact information is not valid.
1 or n (n= stated number) repetitions
Data image in VEGACOM 557
Address Mod- End
Identifier COM ule identification
No. of bytes 1 1 2 1
Range (ASCII) R 0..9 01..31 CR
Example R 2 01..15 CR
Address Address End
Identifier COM MET T1 No. identification
No. of bytes 1 1 2 1 2 1
Range (ASCII) R 0..9 01..31 L 01..31 CR
Example R 2 01 L 03 CR
Address Mod- Contact End
S1 COM ule S2 value T Status identification
No. of bytes 1 1 2 1 6 1 1
Range (ASCII) R 0..9 01..31 # value p 0..1 CRLF
Example R 2 01 # 32896 p 0 CRLF
Input contacts Output contacts
Meaning S1 reserve 10 9 8 7 6 5 4 3 2 1
Bit position 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0