17-6
TP27, TP37 Equipment Manual
Release 01/00
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:
Operator
Control Panel Interface with
panel
16 inputs/outputs 16 inputs/outputs 32 inputs/outputs
TP27
– –
TP37
–
The variants vary according to the units. The DKM for the
S TP27-6 consists of a module board (CPI) and a small housing,
S TP27-10 and TP37 consist of a module board (CPI) or two module boards
(CPI1 + CPI2) and a large housing (see figure 17-8).
The housing is secured to the rear of the Touch Panel. It can be retrofitted at
any time.
The Control Panel Interface must be implemented where fast key operation is
required without any communication–related delays (jog operation < 100 ms).
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).
The Control Panel Interface requires its own power supply. Note, however, that
the digital inputs/outputs are not isolated from the Touch Panel.
Function of the
control panel
interface
External power
supply
Options
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