Software
14
CANio 250 Quickstart Manual, version 1.2
Assignment of byte 3:
Bit number
Value
Meaning
Additional digital input, see chapter 4.4
0
0
no voltage is connected
1
voltage is connected
HW info
– Programming of the Digital Ports A and B
1
0
Digital A is Inputs
1
Digital A is Outputs
2
0
Digital B is Inputs
1
Digital B is Outputs
3
not relevant
7:4
reserved
Always 0
The values of the digital inputs are transmitted if at least one valid value of a
digital input has changed or at the latest after 500 ms
(“Msg Cycle Time”). On-
ly valid values are transmitted and not those that were last read.
Factory setting:
all digital inputs are interrupt triggered but not debounced
5.1.6 Digital inputs: edge events
In addition to the values of the digital inputs CANio 250 transmits the related
edge events with the following CAN messages:
CAN identifier
Data field (length = 8)
Byte 0
Byte 1
…
Byte 7
0x480 + node number of the
CANio 250
Saved configuration
:
saved identifier
edge
events of
digital in-
put 1
edge
events of
digital in-
put 2
…
edge
events of
digital in-
put 8