IRF3000 series
Instruction manual v1.1
23
© ads-tec Industrial IT GmbH • Heinrich-Hertz-Str.1 • 72622 Nürtingen • Germany
6.2 Modbus RTU (RS-485)
The fieldbus node is electrically isolated from the power supply of the IRF.
Its electrical bus load is 1/8 unit load (impedance 96 k
Ω
).
Pin
Signal
GND
Reference potential (common) for
the data signals
D-
Inverted data signal
D+
Non-inverted data signal
6.3 Digital I/O #2
The digital I/O #2 are electrically isolated from the
power supply of the device.
Pin
Signal
V+
Power 24 VDC ± 20
%
DI2
Digital input #2
DO2
Digital output #2
GND
Reference potential
Schematic diagram:
6.4 Digital I/O #3…5
These electrically isolated inputs and outputs are only
available with IRF38.
Pin
Signal
V+
Power 24 VDC ± 20
%
DIx
Digital inputs #3…5
DOx
Digital outputs #3…5
GND
Reference potential