Function description
Operating Manual PSS u2 ES 4IOL
1004880-EN-01
14
4.6
Reaction time
The reaction time for IO-Link is composed of the following times:
}
Min. cycle time of the IO-Link master (see
Technical details [
29]
). This time corres-
ponds to the internal processing time of the IO-Link master.
}
Min. cycle time for the connection between the IO-Link master and the IO-Link device.
This time corresponds to the time defined in the IODD. The IO-Link master must not ad-
dress the IO-Link device during this time.
}
Min. cycle time of a device. Internal processing time of the IO-Link device (see operat-
ing manual for the IO-Link device)
}
Cycle time of the head module and module bus: 2 x ST cycle time = 2 ms
4.7
Configuration options
Operating modes
The following operating modes can be set for each port:
}
Port deactivated
A device connected to the port will not be detected. Terminal L+ is switched off.
}
DI mode
The port is used as a digital ST input. The CQ terminal can be configured as an ST in-
put for each port. The input current can also be configured for the ST inputs in DI mode.
}
DO mode
The port is used as a digital ST output. The CQ terminal can be configured as an ST
output for each port.
}
Fixedmode
The port is used in I/O-Link mode. When searching for connected devices, the master
checks whether the configured manufacturer ID and device ID match the actual manu-
facturer ID and device ID on the connected device.
}
Scanmode
The port is used in I/O-Link mode. When searching for connected devices, the master
does not check whether the connected device matches the configured device.
Save the device configuration
The configured properties of a device can be saved in the master. The master can then
write these to the new device when a device is exchanged.
}
Deactivate/delete
In this mode, all data in the data memory is deleted and the data memory is deactiv-
ated.
}
Upload
In this mode, the configuration is loaded from the device into the master. This setting
can be used when devices already contain configured data and this data is to be ap-
plied to the master.
