VEGA Modbus-TCP, ASCII protocol - Manual (Page 11)

11
2 ASCII protocol
Modbus-TCP, ASCII protocol • VEGAMET 391/624/625, VEGASCAN 693, PLICSRADIO C62
30768-EN-130701
The above commands of the measured value enquiry can be also
combined with the following options:
Option Description
TIME The current date/time is added to the answer
REPEAT x The measured value is sent automatically by the signal condi-
tioning instrument every x seconds
STORE The enquiry is saved up to the STORE option and executed
after a restart (only available with RS232 interface)
SUM A check sum is transmitted for each line which is sent
Information:
For commands and options no difference is made between small
and capital letters. Each character string is terminated with Carriage
Return CR = CHR (13). The individual commands and options are
described below more in detail.
2.3 Version enquiry with command VERSION
With the command VERSION, the current protocol version can be
determined.
Example
•
Enquiry: version
•
Answer: VEGA ASCII Version 1.00
2.4 Help with command HELP
With the command HELP, a short information can be retrieved.
2.5 Delete the settings with the command
CLEARSTORE
With the command CLEARSTORE, the settings of the option STORE
are deleted in the EEPROM and the automatic repetition of the meas-
ured values is stopped.
2.6 Measured value enquiry with command %
% individual enquiry
As answer on the individual enquiry, the PC/DCS value stated in the
enquiry is delivered. The measured value is transmitted with three po-
sitions in front of the decimal point and one position after the decimal
point without unit.
Number of bytes Character
Identifier 1 %
Begin 1 … 3 001 … 030 or 1 … 30
End identification 1 CR
•
Identifier: "%" (1 character)
•
Start: No. of the requested PC/DCS output (1 … 3 characters)
Options
Enquiry of the control
system