ISDU configuration address description
The IO-Link master supports two ways of setting the slave's ISDU parameters: one is parameter reading and writing via addresses, supporting up to 32 bytes; the other is parameter reading and writing via the IO-Link Device Tool, supporting reading and writing of up to 232 bytes of data.
Set via data address
When setting the slave's ISDU parameters using addresses, reading and writing of up to 32 data items is supported; when the interfaces of the IO-Link master coupler are set to IO-Link and IO-Link slaves are connected, the parameter configuration data addresses correspond as shown in the table below:
| Input | |||
| Parameter Name | Description | Data Type | Byte order |
| Port | Select the port to configure (decimal) | Word | 1-2 |
| Index | ISDU index | Word | 3-4 |
| Subindex | ISDU sub-index | Byte | 5 |
| Parameter length | Data width (max 32 bytes) | Byte | 6 |
| Write | Write (set to 1 to take effect) | Byte | 7 |
| Read | Read (set to 1 to take effect) | Byte | 8 |
| Byte0~byte31 | IO-Link slave function | Byte | 9-40 |
| Output | |||
| Parameter Name | Description | Data Type | Byte order |
| Success statUS | Port status after successful write or read (displays 1 after successful configuration) | Word | 1-2 |
| Functional statUS | Slave function status after write or read | Byte | 3-34 |