Module address
The chromatograph computer (PCPU-2) expects
SIMATIC
modules in a particular address area. The ad-
dressing enables several identical
SIMATIC
modules to
be used. The computer identifies the separate modules
by means of the set addresses. In addition, output mo-
dules only react to write processes and input modules to
read processes.
Setting the address switches
All
SIMATIC
modules have an address switch. The mo-
dule address is set there according to the following
rules:
Address Address switch (1 = ON, 0 = OFF)
4
8
12
000001
000010
000011
First digital output module
Second digital output module
Third digital output module
4
8
12
000001
000010
000011
First digital input module
Second digital input module
Third digital input module
128
144
160
176
100000
100100
101000
101100
First analog output module
Second analog output module
Third analog output module
Fourth analog output module
128
144
160
176
100000
100100
101000
101100
First analog input module
Second analog input module
Third analog input module
Fourth analog input module
Press the switches with a pointed object, but never
with a pencil! Pencils leave behind conductive pow-
der.
The specified addresses apply to all modules, even
if they are not fully configured.
Identical modules must never be set to the same ad-
dress. On the other hand, inputs are set to the same
address as outputs (see table).
Special case with module with 16 digital outputs
and 16 digital inputs: no other module must have its
address. This module responds like one digital out-
put module and one digital input module where the
inputs 1 to 16 and the outputs 17 to 32 are faulty.
All addresses are already set if the chromatograph ap-
plication has been prepared by us.
IMPORTANT:
This description does not apply to chromato-
graphs which have at least one
SIMATIC
mo-
dule as standard.
Only this switch is ON
000010
ADB 7 128
ADB 6 64
ADB 5 32
ADB 4 16
ADB 3 8
ADB 2 4
ADB 1 2
ADB 0 1
O
N
SIMATIC modules
3SIMATIC.CHP, Stand Dezember 22, 1999
11
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