Configuring the Onboard I/O for CPU PM55x¶
AC500 CPU PM55x has 8 digital onboard inputs and 6 digital onboard outputs. The inputs and outputs channels can be provided as WORD, BYTE and BOOL.
The 8DI+6DO onboard I/Os support the following channel functions:
| Onboard I/O Type | Channel Function | Max. Number | Channel Name |
|---|---|---|---|
| Digital onboard I/O | Digital Input | 8 | Channel 0..7 |
| Fast counter | 2 | Channel 0, 1 | |
| Interrupt input | 4 | Channel 0..3 | |
| Digital output | 6 | Channel 0..5 | |
| PWM output | 2 | Channel 2..3 |
The following channel parameters for onboard I/Os can be configured for CPU PM55x:
| Onboard I/O Type | Parameter | Channel Name | Default Value | Value | Meaning |
|---|---|---|---|---|---|
| Digital inputs | Input delay digital input | Channel 0..7 | 8 ms | 0.1 ms | Configure 0.1 ms input delay |
| 1 ms | Configure 1 ms input delay | ||||
| 8 ms | Configure 8 ms input delay | ||||
| 32 ms | Configure 32 ms input delay | ||||
| Channel configuration | Channel 0..7 | Input | Input | Configure the channel as normal digital input | |
| Channel 0..3 | Interrupt on rising edge | Trigger interrupt task when detecting the rising edge on the input channel | |||
| Interrupt on falling edge | Trigger interrupt task when detecting the falling edge on the input channel | ||||
| Channel 0 | Fast counter * | Configure the channel as fast counter | |||
| Fast counter mode * | Channel 0, 1 | No counter | 0 | No counter | |
| 1 | 1 Up counter | ||||
| 2 | 1 Up counter with release input | ||||
| 3 | 2 UpDown counters | ||||
| 4 | 2 UpDown counters (2nd on falling edge) | ||||
| 5 | 1 UpDown counter dynamic set/rising edge | ||||
| 6 | 1 UpDown counter dynamic set/falling edge | ||||
| 7 | 1 UpDown counter directional discriminator | ||||
| 8 | Reserved | ||||
| 9 | 1 UpDown directional discriminator x2 | ||||
| 10 | 1 UpDown directional discriminator x4 | ||||
| Digital outputs | Channel configuration | Channel 2, 3 | Output | Output | Configure the channel as normal digital output |
| PWM | Configure the channel as PWM output | ||||
| PWM time base | Millisec | Millisec | Configure ms as PMW time base | ||
| Microsec | Configure µs as PMW time base |
* For detailed information on fast counter, refer to the section Counting Modes of the Fast Counters. The Fast Counters in the AC500.