ITC DOSTEC-AC, Оригинальное руководство

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4.1.5 ModBus mode
Command Address Value
Read 04 00 00 Integer
Read 04 00 01 0/1
Read 04 00 02
0/1
0/1
0/1
0/1
0/1
---x xxxx
---x xxx
x
---x xx
x
x
---x x
x
xx
---x
x
xxx
---
x
xxxx
Read 04 00 03
---x xxxx
5 Bits
5 Bits
Read 04 00 04
0/1
0/1
0/1
0/1
0/1
---x xxxx
---x xxx
x
---x xx
x
x
---x x
x
xx
---x
x
xxx
---
x
xxxx
Read 04 00 05
---x xxxx
5 Bits
5 Bits
Write 06 00 00 Integer
Write 06 00 01 0/1
Name
Dosing Flow
ON/OFF state
Moter alarms:
Current
Temperature
Voltage
Encoder
Shortcircuit
Last motor alarm
Pump alarms:
Level 2
Flow
Leakage
Pressure
Level 1
Last pump alarm
Dosing flow set point
Start / Stop
Integer
0/1
BYTE
0 1 2 3 4 5 6 7
01
04 00 01 00 01 60 0A
Example of reading ON/OFF state:
ENT
ENT
x4
MODE: Manual
Proportional
Analog
Batch
ModBus
1
l / h
M B
1
0240
l / h
M B
This operation mode allows the control of the pump through the serial
port RS485 and Modbus RTU protocol.
- Bus: Rs485
- Communication thorugh (half-duplex) L(H), H(B), and GND
- Baud rate: 9600
- Data bits: 8
- Parity: None
- Stop bits: 1
- Hardware handshaking: No
- Character Time out: 20 mSeg.
- Message Time out: 100 mSeg
Important: if it is necessary to use a RS232/RS485 or other converters, make
sure this converter doesn´t produce an echo signal.
%
l / h
0 0 0
0 0 0
MODE
0240
o
%
0 0 0
0 0 0
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