Operating instructions

Overview
1.9 Communication
MP 377, MP 377 PRO (WinCC flexible)
Operating Instructions, 10/2008, 6AV6691-1DR01-0AB0
33
1.9 Communication
Number of connections
Connection MP 377
Number using a bus connection 6
Number of connections based on "SIMATIC HMI HTTP Protocol" 8
NOTICE
Communication faults with PROFINET IO
When you release PROFINET IO in the HMI device's control panel, communication faults
may arise in the following cases:
• Use of PLCs from other manufacturers
• Use of SIMATIC 500/505 via NITP
Do not release PROFINET IO in the HMI device's control panel in the cases given.