X20 system modules • Counter modules • X20DC1176
664
X20 system User's Manual 3.10
4.11.3.8.4.8 Input status of signal lines
Name:
Encoder01_A
Encoder01_B
Encoder01_R
DigitalInput01 to DigitalInput02
This register displays the input status of the signal lines from the encoder and the digital inputs.
Data type
Value
USINT
See bit structure.
Bit structure:
Bit
Name
Value
Information
0
Encoder01_A
0/1
Input state of encoder signal A
1
Encoder01_B
0/1
Input state of encoder signal B
2
Encoder01_R
0/1
Input state of encoder signal R
3
Reserved
0
4
DigitalInput01
0/1
Input state - Digital input 1
5
DigitalInput02
0/1
Input state - Digital input 2
6 - 7
Reserved
0
4.11.3.8.4.9 Error status of signal lines
The error states are latched when they occur and are maintained until acknowledged. The counter and time reg-
isters are not updated if there are pending or unacknowledged errors.
Status of signal lines
Name:
BW_Channel_A
BW_Channel_B
BW_Channel_R
This register displays the error states of the signal lines from the encoder. The error states are latched when they
occur and are maintained until acknowledged. The counter and time registers are not updated if there are pending
or unacknowledged errors.
Data type
Value
USINT
See bit structure.
Bit structure:
Bit
Name
Value
Information
0
No error in encoder signal A
0
BW_Channel_A
1
Open line, short circuit or voltage level too low
0
No error in encoder signal B
1
BW_Channel_B
1
Open line, short circuit or voltage level too low
0
No error in encoder signal R
2
BW_Channel_R
1
Open line, short circuit or voltage level too low
3 - 7
Reserved
0
