Fieldbus Protocols; Modbus - GF UD2100 Betriebsanleitung

UD2100 Ultrasonic Doppler Flow Meter
9

Fieldbus Protocols

9.1 MODBUS®
MODBUS® serial interface connections are made at the RS485 card's terminal block if your GF UD2100 was ordered with this
card, or if one was added after installation.
Card location:
MODBUS® information
Transceiver
MODBUS Address (MAC address) range
BAUD rates
Data Bits
Parity
Stop Bits
Termination
Biasing
Flow Control
38
POWER
INPUT
-
+
NO
C
NC
NO
C
NC
AC
GND
2-wire, half-duplex
1-255 (Default: 001)
4800, 9600, 19200, 38400, 57600, 76800 or 115200 (Default: 9600)
8
None, Even, Odd (Default: Even)
1, 2 (Default: 1)
120 Ohms or none (Default: None)
Jumper JP1 position 1 & 2 = OFF (No term)
Jumper JP1 position 2 & 3 = ON (Term)
None
None
RS-485
Output
SENSOR
GND
Operating Instructions