Agilent Technologies TV70 Mode D'emploi page 167

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.
Using the RS 485 interface, the message structure remains identical to the one
NOTE
used for the RS 232 interface, the only difference being that the value assigned
to the ADDRESS <ADDR>
The controller can answers with the following response types:
Response Type Response Length
Logic 1 byte
Numeric 6 bytes
Alphanumeric 10 bytes
ACK 1 byte
NACK 1 byte
Unknown Window 1 byte
Data Type Error 1 byte
Out of Range 1 byte
Win Disabled 1 byte
Controller TV70 Navigator User Manual / 87-900-956-01 (G)
RS 232/RS 485 Communication Description
Response 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
the command execution has been
(0x6)
successfully completed
(0x15) the command execution has been failed
the specified window in the command is not
(0x32)
a valid window
the data type specified in the command
(0x33) (Logic, Numeric or Alphanumeric) is not
accorded with the specified Window
the value expressed during a write command
(0x34)
is out of the range value of the specified
window
the specified window is Read Only or
temporarily disabled (for example you can't
(0x35)
write the Soft Start when the Pump is
running)
Technical Information
167/182
18