isel
- CAN - I/O
– Modules: Operating Instruction
Page - 18
2.5.6
Analog input
The module CAN-I/O-8/12-4/1 has 4 analog Inputs with an input voltage range from
0V to10V and a resolution of 16 Bit. On these inputs you can directly connect e.g.
sensors. These inputs have an input impedance of 2k
Ω and provides an internal RC
filter.
2.5.7
Diagnosis, signalization, fault states
Diagnosis of the CAN-I/O modules is possible by observing the status LED.
CAN-IO-16/16
Status-LED
CAN-IO-8/12- 4/1
Status-LED
This LED signals 4 different states:
LED duty cycle
State
0%, off
Error: CAN I/O module is not in operational state,
logic voltage is not available or the internal power
supply (DC/DC: 24 VDC to 5,0 V) is damaged
10%
No error
normal operation
50%
Uncritical error or warning
90%
Critical error (NMT error, output error)
