IDL 101
INSTALLATION
20
HB_IDL101_E_V222.doc
Gantner Instruments Test & Measurement GmbH
0
V
A
B
R
X
T
X
C
O
M
S
O
U
R
C
E
A
In
+
A
In
-
RUN
ERR
I/
O
0
2
I/
O
0
4
+
10
..
3
0
V
RS 232
RS 485
SUPPLY
S
O
U
R
C
E
A
In
+
A
In
-
S
O
U
R
C
E
A
In
+
A
In
-
S
O
U
R
C
E
A
In
+
A
In
-
S
O
U
R
C
E
A
In
+
A
In
-
S
O
U
R
C
E
A
In
+
A
In
-
A
O
ut
+
I/
O
1
2
I/
O
1
4
I/
O
1
6
I/
O
1
5
I/
O
0
6
I/
O
0
8
I/
O
1
0
I/
O
0
1
I/
O
0
3
I/
O
1
1
I/
O
1
3
I/
O
0
5
I/
O
0
7
I/
O
0
9
INTELLIGENT DATA LOGGER
AD
R
A
GN
D
DIGITAL
A
GN
D
A
GN
D
A
GN
D
A
GN
D
A
GN
D
A
GN
D
1
2
3
4
5
6
RS 485 Fieldbus
B
B´
A
A´
3.9. Bus Connection
In general the data logger is connected with the bus by applying the signal leads A and B of the incoming bus cable and
A' and B' of the outgoing bus cable together to one terminal on the module (figure 3.4).
Alternatively the bus can also be connected by a "stub cable" (figure 3.5).
Owing to the removable terminal strip, the bus connection to other modules remains valid, even if one module has to
be replaced by another.
Notice:
The terminal designations A and B are exchanged, compared with the PROFIBUS-definitions, for all devices of
the ISM series
“100“. This means that in multi-vendor-systems the bus lines A and B must be exchanged when they are
connected to a device of the ISM series.
Notice:
The stub cable should be as short as possible, not longer than 30 cm (12 inch).
Figure 3.4 Connection of the IDL 101 to the bus
Figure 3.5 Connection of the IDL 101 to the bus by a stub cable
RS 485 Fielbus
B
B´
A
A´
0
V
A
B
R
X
T
X
C
O
M
S
O
U
R
C
E
A
In
+
A
In
-
RUN
ERR
I/
O
0
2
I/O
0
4
+
1
0.
.3
0
V
RS 232
RS 485
SUPPLY
S
O
U
R
C
E
A
In
+
A
In
-
S
O
U
R
C
E
A
In
+
A
In
-
S
O
U
R
C
E
A
In
+
A
In
-
S
O
U
R
C
E
A
In
+
A
In
-
S
O
U
R
C
E
A
In
+
A
In
-
A
O
u
t +
I/O
1
2
I/
O
1
4
I/O
1
6
I/O
1
5
I/
O
0
6
I/O
0
8
I/
O
1
0
I/
O
0
1
I/O
0
3
I/
O
1
1
I/
O
1
3
I/
O
0
5
I/O
0
7
I/
O
0
9
INTELLIGENT DATA LOGGER
AD
R
A
GND
DIGITAL
A
GND
A
GND
A
GND
A
GND
A
GND
A
GND
1
2
3
4
5
6
