Siemens SIMATIC ET 200AL System Manual page 1872

Figure 6-12
Note
I-device as standard IO device
You cannot assign a device that you configured in STEP 7 as an I-device to the S7-1500R/H
redundant system.
In order to operate an I-device as a standard IO device on the S7-1500R/H redundant system,
always configure the I-device via GSD file.
• SIMATIC CPU as I-device
– First, configure the SIMATIC CPU in STEP 7 as an I-device with all transfer areas.
– Export the I-device as a GSD file. The GSD export can be found in the properties of the
– Install the GSD file in STEP 7.
• HMI device as I-device ("Direct key" function)
– The GSD files for SIMATIC Comfort Panel and SIMATIC Mobile Panel can be found in this
Assign the device configured via GSD file to the S7-1500R/H redundant system.
Display of the IO device assignments in STEP 7
Regardless of whether an IO device is connected as system redundant or as standard IO
device to the redundant S7-1500R/H system, the network view always shows "Multi
assigned".
To determine which IO devices are connected system redundant and which ones are
connected as standard IO devices, follow these steps:
1. In the network view of STEP 7, select the redundant S7-1500R/H system.
2. In the tabular view of the network view switch to "I/O communication".
PROFINET with STEP 7
Function Manual, 05/2021, A5E03444486-AL
Assigned IO device
PROFINET interface under "Operating mode" > "I-device communication" > "Export
Generic System Description file (GSD)".
application example (https://support.industry.siemens.com/cs/ww/en/view/73502293).
PROFINET with the redundant S7-1500R/H system
6.8 Assigning IO device to the redundant S7-1500R/H system
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