Pahlen Autodos M1, Руководство пользователя

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ENGLISH
Autodos M
MA60-10E
ENGLISH
Autodos M
MA60-10E
15. Autodos PLC connection (expansion)
Simply installing an extra circuit board makes it possible to connect Autodos M to a PLC.
The PLC connection kit includes the following parts: Datalogger with real-time clock and Modbus RTU.
The circuit board is connected to the bottom card in Autodos with a connector and plastic clips. Externally, the circuit board is
connected to the RS422 interface via a 5-pin screw terminal.
Datalogger 32kB EEPROM
Real-time clock
24kB (3 days) with minute average values for 4 channels
8kB events (255 events); an event can be e.g. an alarm or a calibration
Modbus RTU-interface i Autodos M3, ver. 5.3
Baudrate 9600 baud
Parity None.
Modbus RTU communication in Autodos M3. Autodos only responds via a message:
Slave address As per Autodos “common setup”
Function 03H, Read holding registers
Starting Address Hi 00H
Starting Address Lo 01H
No. of Points Hi 00H
No. of Points Lo 0BH
CRC 55H
CRC CDH
With slave address 1, the message is: 01 03 00 01 00 0B 55 CD
Autodos responds with:
Ph (16 bit, lsb = 0.01 pH)
Combined chlorine (16 bit, lsb = 0.01 mg/l)
Free chlorine (16 bit, lsb = 0.01 mg/l)
AD0 (16 bit, lsb = prog. dependent)
Redox (16 bit, lsb = 1 mV)
Temp, NTC input (16 bit, lsb = 0.1 °C)
Alarm Active (16 bit)
Alarm Reset (16 bit)
Setvalue pH (16 bit, lsb = 0.01 pH)
Setvalue Comb.chlorine (16 bit, lsb = 0.01 mg/l)
Setvalue Free chlorine (16 bit, lsb = 0.01 mg/l)
Alarm Active (16 bit)
bit 0: Standby mode
bit 1: Flow
bit 2: High alarm pH
bit 3: High alarm Combined chlorine
bit 4: High alarm Free chlorine
bit 5: Low alarm pH
bit 6: Low alarm Combined chlorine
bit 7: Low alarm Free chlorine
Alarm Reset (16 bit)
bit 0: Standby mode
bit 1: Flow
bit 2: High alarm pH
bit 3: High alarm Combined chlorine
bit 4: High alarm Free chlorine
bit 5: Low alarm pH
bit 6: Low alarm Combined chlorine
bit 7: Low alarm Free chlorine