Agilent Technologies TPS-mobile 9698403, Руководство пользователя

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17 Technical Information
Letter Protocol Description
378/400 TPS-mobile User Manual / 87-901-005-01 (F)
The field length is variable according to the data type as per the
following table:
Data Type Field Length Valid Characters
Logic (L) 1 ‘0’ = OFF
‘1’ = ON
Numeric (N) 6 ‘ - ‘, ‘.’, ‘0’ . . . ‘9’ right justified with ‘0’
Alphanumeric (A) 10 from blank to ‘_’ (ASCII)
▪
<ETX> (End of transmission) = 0x03
▪ <CRC> = XOR of all characters subsequent to <STX> and
including the <ETX> terminator. The value is hexadecimal coded
and indicated by two ASCII character.
The addressed SLAVE will respond with an ANSWER whose
structure depends from the MESSAGE type. When the MESSAGE is a
reading command, the SLAVE will respond transmitting a string with
the same structure of the MESSAGE.
NOTE
Using the RS 485 interface, the message structure remains identical to the one
used for the RS 232 interface, the only difference being that the value assigned
to the ADDRESS <ADDR>