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Release 03/2004
4
Connecting the OP 77B
Conditions
• Installation of the HMI device in accordance with the
specifications in the operating instructions
Electrical connections
Connect the HMI device in the following sequence:
Potential equalization line
PLC
Configuration computer, if necessary
Peripheral equipment, if necessary
Power supply
Notice
Connection sequence
Please observe the sequence of HMI device
connections. Failure to do so may result in damage to
the HMI device.
When disconnecting the connections, ensure it is done
in the reverse sequence.
Connecting the cables
When connecting the cables, ensure that the contact
pins are not bent. Secure the cable plug, if possible,
with screws.
Operating Instructions (Compact) OP 77B
6AV6691-1EA01-0AB0
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4
4–1
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