Tab. 7
Data Type
Logic (L)
Numeric (N)
Alphanumeric (A)
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.
The controller can answers with the following response types:
Tab. 8
Type
Logic
Numeric
Alphanumeric
ACK
NACK
Unknown
Window
Data Type Error
MS40+ Single Stage Rotary Vane Pumps User Manual / 87-901-008-01
Field Length
1
6
10
<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.
Length
1 byte
6 bytes
10 bytes
1 byte
1 byte
1 byte
1 byte
RS 232/RS 485 Communication Description
Valid Characters
'0' = OFF
'1' = ON
'-', '.', '0' . . . '9' right justified with '0'
from blank to '_' (ASCII)
Value
Description
-
after a read instruction of a logic window
-
after a read instruction of a numeric
window
-
after a read instruction of an
alphanumeric window
(0x6)
the command execution has been
successfully completed
(0x15)
the command execution has been failed
(0x32)
the specified window in the command is
not a valid window
(0x33)
the data type specified in the command
(Logic, Numeric or Alphanumeric) is not
accorded with the specified Window
Technical Information
(E)
5
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