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17.2
Control Panel Interface
A Control Panel Interface (CPI) is available as an option for Touch Panels con-
nected to SIMATIC S7 PLCs. The following variants are available:
TP27
TP37
The variants vary according to the units. The DKM for the
The housing is secured to the rear of the Touch Panel. It can be retrofitted at
any time.
Function of the
The Control Panel Interface must be implemented where fast key operation is
control panel
required without any communication–related delays (jog operation < 100 ms).
interface
It communicates via the PROFIBUS-DP bus and can only be used in conjunc-
tion with the SIMATIC S7 PLC.
Each module board provides 16 digital inputs/outputs. An external keypad with
controls and light indicators can be connected for each module board. The as-
signment of the digital inputs/outputs to the control and light indicators of the
external keypads is configured in the PLC (also refer to the Communication
User's Guide).
External power
The Control Panel Interface requires its own power supply. Note, however, that
supply
the digital inputs/outputs are not isolated from the Touch Panel.
17-6
Operator
panel
l
16 inputs/outputs
–
TP27-6 consists of a module board (CPI) and a small housing,
TP27-10 and TP37 consist of a module board (CPI) or two module boards
(CPI1 + CPI2) and a large housing (see figure 17-8).
Control Panel Interface with
16 inputs/outputs
32 inputs/outputs
–
TP27, TP37 Equipment Manual
–
Release 01/00
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