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I/O modules
Profibus module
Electrical connections
RS485 interface:
1 –
Not used
2 M24
24 V output ground, max. 0.2 A
3 RxD/TxD-P Receive / transmit data plus, B-line
4 –
Not used
5 DGND
Data transmission potential (Ref. pot. for VP)
6 VP
Supply voltage plus (5 V)
7 P24
24 V output voltage plus
8 RxD/TxD-N Receive / transmit data N, A-line
9 –
Not used
Design: 9-pin sub-D female connector
MBP interface (non-intrinsically safe):
1 +
2 Shield
3 –
4 Not used
Design: 4-pin terminal strip. Observe the notes regarding
I/O module connection (see page 17)!
Modbus module
Electrical connections
RS232 interface:
2 RxD
3 TxD
5 GND
Design: 9-pin sub-D male connector
RS485 interface:
2 RTxD–
3 RTxD+
5 GND
Design: 9-pin sub-D female connector
Analog output modules
Analog outputs (AO1–AO4)
0 / 4–20 mA (configurable, factory-set to 4–20 mA), common
negative pole, galvanically isolated from ground, freely con-
nectable to ground, max. gain relative to protective ground
potential 50 V, max. working resistance 750 Ω. Resolution
16 bit. The output signal cannot be lower than 0 mA.
Terminal assignment
An analog output is allocated in the sequence of the sample
components for each sample component. The sequence of
the sample components is documented in the analyzer data
sheet and on the type plate.
Electrical connections
1 AO1+
2 AO1– for 2-way analog output module and
3 AO2+ 4-way analog output module
4 AO2–
5 AO3+
6 AO3– only for
7 AO4+ 4-way analog output module
8 AO4–
Design: 4-pin or 8-pin terminal strip. Observe the notes
regarding I/O module connection (see page 17)!
18
Connection diagram
Connection diagram
Connection diagrams
2-Way Analog Output Module
4-Way Analog Output Module
EasyLine EL3000 Series Data Sheet
RS485
1
1
6
RS232
1
6
1
2
3
4
1
2
3
4
5
6
MBP
2
3
4
RS485
1
6
7
8
10/24-4. 1 0 EN Rev. 9
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