8.2 Device parameters
8 Configuration and operation in
TwinCAT
®
3
8.2.3 Failsafe mode for the digital output
The firmware of the devices provides a fail-safe function for ports in digital
output mode. During device configuration, you have the option to define the
status of channels A and B for ports in digital output mode in the case of an
interruption or the loss of communication.
The following table represents possible failsafe replacement values of ports
in digital output mode.
The following options are available:
Set low (default value)
Deactivate the output channel
(value = 0)
Set high
Activate the output channel
(value = 1)
Hold last
Hold the last output status
(value = 2)
SDO
SDO content
Index
Size
Index
Size
Type
Name
0x2380 : 1
1
UINT8
Port 1 Channel A
0 = Set Low
1 = Set High
2 = Hold Last
Others: reserved
0x2380 : 2
1
UINT8
Port 1 Channel B
0 = Set Low
1 = Set High
2 = Hold Last
Others: reserved
0x2380
16
0x2380 : 3
1
UINT8
Port 2 Channel A
0 = Set Low
1 = Set High
2 = Hold Last
Others: reserved
Manual EtherCAT®
Version 1.1 04/2021
54