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3.1 RAD-AI4-IFS - analog extension module with four
inputs
The analog RAD-AI4-IFS I/O extension module can process up to four input signals
between 0/4 mA ... 20 mA. All inputs are electrically isolated from one another, from the
supply voltage, and from the electronics.
A supply voltage of 12 V DC, minimum, is available at the PWR
1
connection terminal block
for passive sensors (see Figure 3-1, item 1).
3.1.1 Structure
Figure 3-1 RAD-AI4-IFS structure
Item Designation
1 Analog input 2 for 2-, 3-, 4-wire measuring transducers
2 Analog input 1 for 2-, 3-, 4-wire measuring transducers
3 DIP switches for configuring the analog inputs (current/voltage input)
4 White thumbwheel for setting the I/O-MAP address
5 Connection option for DIN rail connector
6 DIN rail
7 Metal foot catch for DIN rail fixing
8 Analog input 3 for 2-, 3-, 4-wire measuring transducers
9 Analog input 4 for 2-, 3-, 4-wire measuring transducers
10 ERR status LED, red (communication error)
11 DAT status LED, green (bus communication)
12 PWR status LED, green (supply voltage)
IO-MAP
RAD-AI4-IFS
PW
R
DAT
ER
R
1
2
3
4
OFF
ON
DIP-1
8
8
Pw
r
1
Pw
r
2
+I
1
+I
2
-I
1
-I
2
Pw
r
3
Pw
r
4
+I
3 +I
4
-I
3
-I
4
Pw
r
1
Pw
r
2
+I
1
+I
2
-I
1
-I
2
1
2
3
4
5
7
9
12
11
10
8
6