M
M
F
F
W
W
-
-
Z
Z
D
D
-
-
B
B
A
A
-
-
U
U
K
K
-
-
0
0
0
0
6
6
P
P
a
a
g
g
e
e
1
1
2
2
o
o
f
f
2
2
4
4
A system from the MFW product family
5. Configuration via DIP switch
5.1 General principles
Data within the telecontrol system is exchanged on the basis of module numbers. A module number is
assigned to every basic or expansion module that contains an I/O module. The data is exchanged
between modules with the same module number. The physical arrangement of the modules within the
system (the station address) is of no significance at all here. The no. 5 input module, for example,
transfers its data to all output modules with module no. 5. Several output modules with the same
module no. may be present. An input module number, however, can only be used once within one
system.
The most important settings can be made with the aid of DIP
switches. These can include station address of the substation
(0 – 31), number of substations connected to the master,
module number (0 ... 254), digital I/O operating mode and
current and voltage with analog signals etc. The DIP switches
A and B are located on the bottom of the basic modules.
M
o
dule
numbers
251 ... 254
are reserved for the
output of station errors in the factory
setting.
Figure 3: Bottom of the basic modules
5.2 Master module
The station address is always 0. The following settings are required:
Meaning
Values
DIP switches
Module number of the I/O
module
0 – 250
A1 –A8
Diagnostic interface switchover
ON - diagnostic interface
OFF - protocol interface
A9
Number of substations
1 – 31
B1 – B5
Number of pulse inputs or
outputs
0, 1, 2 or 4
(All other inputs and outputs
are handled as static I/Os by
MFW.)
B6 B7
Pulse input or
output
OFF OFF none
ON OFF E/A1
OFF ON E/A1 and E/A2
ON ON E/A1 – E/A4
2 wire reception level
Standard /-20 dB
B8
2 wire transmission level
Standard / high
B9
Table 2: DIP switch of the master module
The DIP switch A9 only functions for modules with switchable interface.
