The HighFlex I/O boards and the MultiCompact I/O Unit offer different channel types. In some cases you can use different channel types for the same function. The list below shows the channel types, the boards they are available with and the alternative channels. All the channels are configured in ConfigurationDesk. The software displays short channel names, which are stated in brackets in the Channel Type column.
| Channel Type | Alternative Channel Type | Board with Number of channels | |
| Input channel types | Multifunctional input channel type 1 (Flexible In 1) | DS2601 (10) | |
| Multifunctional input channel type 2 (Flexible In 2) |
DS2680 (18) | ||
| Flexible in 1 | DS2601 (10) | ||
| Analog voltage input channel type 1 (Analog In 1) |
DS2680 (20) | ||
| Flexible in 1 | DS2601 (10) | ||
| Analog voltage input channel type 2 (Analog In 2) | DS2680 (2) | ||
| Digital input channel (Digital In 1) | DS2680 (30) | ||
| Flexible in 1 | DS2601 (10) | ||
| Digital input channel (Digital In 2) | DS2690 (10) | ||
| Flexible In 1 | DS2601 (10) | ||
| Digital In 1 | DS2680 (30) | ||
| Digital input channel (Digital In/Out 1, used as input) | DS2690 (10) | ||
| Flexible In 1 | DS2601 (10) | ||
| Digital In 1 | DS2680 (30) | ||
| Digital In 2 | DS2690 (10) | ||
| Output channel types | Multifunctional output channel (Flexible Out 1) | DS2621 (10) | |
| Analog voltage output channel type 1 (Analog Out 1) |
DS2680(15) | ||
| Flexible Out 1 | DS2621 (10) | ||
| Analog Out 4 | DS2680 (8) | ||
| Analog output channel (Analog Out 2) | DS2680 (2) | ||
| Analog AC voltage output channel (Analog Out 3) | DS2680 (7) | ||
| Flexible Out 1 | DS2621 (10) | ||
| Analog output channel (Analog Out 4) | DS2680 (8) | ||
| Flexible Out 1 | DS2621 (10) | ||
| Digital output channel (Digital Out 1) | DS2680 (28) | ||
| Flexible Out 1 | DS2621 (10) | ||
| Resistance simulation channel (Resistance Out 1) | DS2680 (12) | ||
| Flexible Out 1 | DS2621 (10) | ||
| Digital output channel (Digital Out 2) | DS2690 (10) | ||
| Flexible Out 1 | DS2621 (10) | ||
| Digital Out 1 | DS2680 (28) | ||
| Digital In/Out 1 | DS2690 (10) | ||
| Digital output channel (Digital In/Out 1, used as output) | DS2690 (10) | ||
| Flexible Out 1 | DS2621 (10) | ||
| Digital Out 1 | DS2680 (28) | ||
| Digital Out 2 | DS2690 (10) | ||
| Bus channel types | Bus (Bus 1), configurable for CAN, LIN, FlexRay, etc. | DS2671 (4) | |
| CAN (CAN 1) | DS2680_2672 (2) | ||
| Bus 1 | DS2671 (4) | ||
| LIN/K-Line (LIN 1) | DS2680_2672 (2) | ||
| Bus 1 | DS2671 (4) | ||
| FlexRay (FlexRay 1) | DS2680_2672 (2) | ||
| Bus 1 | DS2671 (4) | ||
| Power channel types | Power switch with current measurement (Power Switch 1) | DS2642 (10) | |
| Power switch without current measurement (Power Switch 2) | DS2680 (6) | ||
| Power Switch 1 | DS2642 (10) | ||
| Power unit control (Power Control 1) | DS2907 (2) | ||
| DS2680 (1) | |||
