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mber of update cycles when IO data is missing".
1. Select an interface module IM 155-6 PN HF.
2. Navigate to "Properties" > "Advanced options" > "Real time settings" > "IO cycle" >
"Watchdog monitoring".
3. Set the update cycles for the example to 112 (224 ms).4. Follow steps 1. to 3. for the other two interface modules IM 155-6 PNHF (tunnel sections
2 and 3).Assign names for the two HMI devices.
Connect the HMI devices to the redundant system as follows:
● Network the HMI devices with an H-CPU in each case.
● Configure two HMI connections.
● Assign the system address of a PROFINET interface of the H-CPU or
● Use the device address of the respective PROFINET interface of the two H-CPUs
HMI device wizard
Recommendation: Configure the HMI devices with the HMI Device Wizard. The HMI device
wizard will guide you through each dialog step by step and help you set up an HMI device.
The HMI device wizard will automatically start when you create a new HMI device in your
project via the project navigation.
Connection via a device address:
When connecting via the device address, the HMI device always communicates with the
connected CPU. Communication is independent of the system state. The connected CPU
then synchronizes the data with the other CPU.
Requirements: Each HMI device is connected to a CPU via a separate subnet.
In the example, the TP1900 Comforts communicate in each case via the devices address
of the PROFINET interface with the directly connected CPU. When connecting via the device address, the HMI device always communicates with the
connected CPU. Communication is independent of the system state. The connected CPU
then synchronizes the data with the other CPU.
Requirements: Each HMI device is connected to a CPU via a separate subnet.
In the example, the TP1900 Comforts communicate in each case via the devices address
of the PROFINET interface with the directly connected CPU.
Assigning names for HMI devices
1. Select the left-hand TP1900 Comfort in the network view.
2. Change to the device view.
3. In the properties in the "General" area, assign the name "HMI left".
4. Assign the name "HMI right" for the TP1900 Comfort of the CPU on the rightConnect the HMI devices to the CPUs via separate PROFINET subnets.
1. Using drag-and-drop, draw a line between the PROFINET interface X1 of the "HMI left"
and the PROFINET interface X2 of the left-hand CPU.
2. Using drag-and-drop, draw a line between the PROFINET interface X1 of the "HMI right"
and the PROFINET interface X2 of the right-hand CPU.
Result: The HMI devices are networked with the CPUs.Figure 2-11 HMI devices networked with CPUs
3. In the network view, click on "Connections". This activates connection mode.
4. Using drag-and-drop, draw a line between the networked PROFINET interfaces of "HMI
left" and the left-hand CPU. The "Connection partners" list opens.5. In the "Connection partner" list, select the CPU "PLC_1".
6. Using drag-and-drop, draw a line between the networked PROFINET interfaces of "HMI
right" and the right-hand CPU. The "Connection partners" list opens.