FISCHER Mess- und Regeltechnik GmbH
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4.3.2 Device with Modbus
NOTICE! In this section you will learn how to configure a Modbus device.
Further information can be found in the Modbus manual.
Zero point button
DIP switch
Status LED
Baud rate
Parity
Stop bit
Byte order
Modbus address = OFF
1 2 3 4 5 6 7
ON
8
ON
OFF
DIP switch
1
2
Interface = ON
Address
1 2 3 4 5 6 7
ON
8
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Fig. 16:
Control elements for configuration
4.3.2.1 Modbus address
NOTICE! Address 0 is reserved for the broadcast. For this reason, a
decimal 1 is added to each set address.
1 2 3 4 5 6 7
ON
8
S1 S2 S3 S4 S5 S6 S7
Address
ON=1
OFF=0
2
0
2
1
2
2
2
3
2
4
2
5
2
6
Binary
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
2
0
1
0
0
0
0
0
3
1
1
1
1
1
1
1
128
Decimal 1
2
4
8
16 32 64
Sum +1
+
+
+
+
+
+
127
Σ
=
0
1
2
127
S8
0
0
0
0
Fig. 17:
Setting the Modbus address