Table of Contents
Advertisement
Addressing
5.2
Slot Addressing
Variable addressing is possible since an IM 306 interface module is plugged into each central con-
troller and each expansion unit. For addressing purposes, it does not matter whether the module
in question is plugged into a central controller or an expansion unit. Under a hinged cover on the
right side of the interface module is an addressing panel. It has a DIP switch for each slot. Use the
DIP switch to set the least significant byte number for a particular slot ( Figure 5-2).
Note
Input and output modules in different slots can have the same address.
Note
In the case of the 463 analog input module and the CP 523, the initial address is set on
the module and not on the IM 306 interface module. The address set for this slot on
the IM 306 is not significant.
We recommend that the address set on the module be repeated on the IM 306 for
reasons of clarity.
I/O modules that are not safety-related are not duplicated. Each module is assigned to one of the
subunits. The address in question may not then be set in the other subunit.
The control program is identical in both subunits. The operating system assigns the "correct" sub-
unit.
If you are operating the central controller without expansion units, you can do without the IM 306
for variable slot addressing. You must then use the terminating connector supplied instead of the
IM 306 interface module. This assigns fixed addresses to slots 0 to 5.
Fixed slot addressing
Slot
0
1
2
3
4
5
5-2
Initial module address
Digital module
0
4
8
12
16
20
S5-115F Manual
Analog module
128
160
192
224
-
-
EWA 4NEB 811 6148-02
Advertisement
Table of Contents
