Siemens simatic hmi op27 Equipment Manual page 163

Options
3. Connect the connector of the DKM ribbon cable to the plug connector of
Figure 18-5 Connecting the plug of the direct key module (example OP37)
4. Secure the direct key module to the OP using the four screws supplied ¸
Figure 18-6 Securing the direct key module to the OP (example OP37)
Remove in the reverse sequence of the installation procedure.
18-6
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the OP in such a way that the color-coded side of the ribbon cable is facing
toward the center of the unit (see Figure 18-5).
Color coding
Ribbon cable
Pins
(see Figure 18-6).
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OP27, OP37 Equipment Manual
Release 05/99