BECKHOFF ET1100 - Manual (Page 46)

Pin Description
III-32 Slave Controller – ET1100 Hardware Description
3.9 PDI Signal Pinout depending on selected PDI
The PDI signal pinout depends on the selected PDI (SII EEPROM). The PDI selection and PDI signal
pinout is subject to restrictions introduced by the port configuration. Digital I/O and SPI PDI are
available in any configuration
– although the I/O width can be reduced depending on the configuration.
The µController PDIs are only available with up to 3 ports, the data bus width can be reduced
depending on the configuration.
Refer to PDI descriptions for further PDI and PDI signal descriptions.
The SPI PDI supports additional general purpose I/O signals, which are not part of the SPI PDI
description:
GPO[x]
General purpose output signals.
GPI[x]
General purpose input signals.