Check port configuration (I/O check)

Nov 06, 2024 | 600 words | 3 min reading time

You perform an I/O check for the following reasons:

  1. To compare the configured topology in BET with the physical topology at IO-Link network module, device and port level, see Compare projected topology with physical topology.

  2. To test and check the inputs and outputs of IO-Link network modules without a PLC connected via I/O control, see Perform I/O control for digital outputs.

  3. To read/write process data from IO-Link devices, see Read/write process data for IO-Link devices.

Overview I/O Check

_images/w_IO_Check_2.jpg

Pos.

Description

1

Project name of the topology in BET.
The topology in the field is compared against this topology.

2

Configured IO-Link network modules

3

Projected port configuration, broken down by port and pin.

4

I/O control:
- Display port status
- Set digital outputs
- Read and write process data from IO-Link outputs.

5

Result of the port comparison

6

Exports the I/O check result

7

Updates the display in the Port Status and Compare columns.
An update of the process data does not take place.

Compare projected topology with physical topology

You can compare the projected topology with the topology in the field at the following levels:

  • IO-Link network modules

  • Devices

  • Port configuration

If you have created or imported the projected topology manually, differences in the port configuration are displayed as a result of the comparison. If you have scanned the configured topology, the result of the comparison is displayed when a device fails.

  1. Click I/O-CHECK in the function bar.

  The I/O check dialog appears.

  1. Click UPDATE.

  The projected topology is compared with the physical topology. You can see the result of the port configuration comparison in the Compare column.

Result of the port comparison

If an IO-Link network module is found, each pin of the physical IO-Link network module in the IO-Link network is evaluated and compared with the configured topology. The following table compiles an overview of all possible evaluations that are entered in the Compare column after a scan.

The following results are possible:

_images/w_IO_Check_5_de.jpg

Perform I/O control for digital outputs

For test purposes, you can switch the configured digital outputs on and off in the field.

Warning

DANGER OF ACCIDENT! Setting outputs leads directly to an electrical signal at the output of the IO-Link network module. Check the risk of accidents before use. Do not set any outputs if you cannot exclude the risk of accidents.

  1. Click I/O-CHECK in the function bar.

  The I/O check dialog appears.

  1. For ports for which a digital output has been defined, two buttons are available in the Port Status column:

_images/w_IO_Check_6.jpg
  1. You have the following options:

  • Click SET to switch on the physical digital output.

  • Click Reset to turn off the physical digital output.