TECHNICAL INFORMATION
78
87-900-968-01(C)
The controller can answers with the following re-
sponse types:
TYPE LENGTH
VALUE DESCRIPTION
Logic 1
byte
-
After a read instruction
of a logic window
Numeric 6
bytes
-
After a read instruction
of a numeric window
Alphanumeric 10
bytes
-
After a read instruction
of an alphanumeric
window
ACK 1
byte
(0x6)
The command execu-
tion has been success-
fully completed
NACK 1
byte
(0x15)
The command execu-
tion has been failed
Unknown
Window
1 byte
(0x32)
The specified window
in the command is not
a valid window
Data Type
Error
1 byte
(0x33)
The data type specified
in the command (Logic,
Numeric or Alphanu-
meric) is not accorded
with the specified Win-
dow
Out of Range
1 byte
(0x34)
The value expressed
during a write com-
mand is out of the
range value of the
specified window
Win Disabled
1 byte
(0x35)
The specified window
is Read Only or tempo-
rarily disabled (for ex-
ample you can’t write
the Soft Start when the
Pump is running)
NOTE
The RS-485 is a 2-wire (gnd optional) half-duplex
communication link.
Examples:
Command: START
Source: PC
Destination: Controller
02 80 30 30 30 31 31 03 42 33
STX ADDR
WINDOW
WR ON ETX
CRC
Source: Controller
Destination: PC
02 80 06 03 38 35
STX ADDR ACK ETX
CRC
Command: STOP
Source: PC
Destination: Controller
02 80 30 30 30 31 30 03 42 32
STX ADDR
WINDOW WR
OFF
ETX
CRC
Source: Controller
Destination: PC
02 80 06 03 38 35
STX ADDR ACK ETX
CRC
Command: SOFT-START (ON)
Source: PC
Destination: Controller
02 80 31 30 30 31 31 03 42 32
STX ADDR
WINDOW WR
ON
ETX
CRC
Source: Controller
Destination: PC
02 80 06 03 38 35
STX ADDR ACK ETX
CRC
Command: SOFT-START (OFF)
Source: PC
Destination: Controller
02 80 31 30 30 31 30 03 42 33
STX ADDR
WINDOW WR
OFF
ETX
CRC
Source: Controller
Destination: PC
02 80 06 03 38 35
STX ADDR ACK ETX
CRC
