Plan deployment
3.2 Installation notes
TP 270, OP 270, MP 270B (WinCC flexible)
3-2 Operating Instructions, Edition 03/2004, 6AV6691-1DD01-0AB0
3.2 Installation notes
Electromagnetic compatibility
The HMI device fulfills the requirements requirements as stipulated by German law on EMC
as well as the EMC guidelines of the European Union.
Installation in grounded metal cabinets, e.g. 8 MC cabinet complying to Siemens catalog
NV21, ensures compliance to EN 61000-4-2.
Installing HMI devices to conform to EMC requirements
A PLC design which is compliant with EMC requirements and uses interference-proof cables
is required for error-free operation. The "Guidelines for Interference-Free Construction of
PLCs" and the "PROFIBUS network Manual" are installation references for the HMI device.
Caution
Only shielded cables are permitted for all signal connections.
Screw or lock all plug connections.
Do not install signal lines in the same cable ducts as power cables.
Siemens AG refuses to accept liability for malfunctions and damage arising from use of self-
made cables or cables from other manufacturers.
Conditions for use
The HMI device is intended for installation in weatherproof, permanent locations. The
conditions for the use of the HMI device exceed the requirements as outlined in DIN IEC
60721-3-3 in the following classes:
• Class 3M3 (mechanical requirements)
• Class 3K3 (climatic requirements)
Use with additional measures
The HMI device may not be used in the following circumstances without implementation of
additional measures:
• In locations with a high degree of ionizing radiation
• In locations with extreme operating conditions resulting from situations such as the
following:
– corrosive vapors or gases
– strong electrostatic or magnetic fields
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