Software
Copyright IXXAT Automation GmbH
19
CANio 500 Quickstart Manual, version 1.3
Assignment of byte 1:
Bit number
Value
Meaning
Additional digital input, see chapter 4.4.2
0
0
no voltage is connected
1
voltage is connected
HW info - Variant of the analog inputs:
2:1
11
0 to 10 V
01
+/- 5 V
10
+/- 100 mA
00
not defined
3 - 7
not relevant
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
5.1.7 Digital inputs: edge events
In addition to the values of the digital inputs CANio 500 transmits the related
edge events with the following CAN message:
CAN identifier
Data field (length = 4)
Byte 0
Byte 1
Byte 2
Byte 3
0x480 + node number of the
CANio 500
Saved configuration
:
saved identifier
edge
events of
digital in-
put 1
edge
events of
digital in-
put 2
edge
events of
digital in-
put 3
edge
events of
digital in-
put 4
The single data bytes do inform about the count of detected edge events of a
digital input.