FB#.INITSIGNED
Description
FB#.INITSIGNED configures the use of the sign bit for multiturn feedback devices, and determines the initial sign of the 64-bit position feedback (FB#.P) at power-up. The initial position needs to be treated as signed or unsigned, depending on the application.
FB#.INITSIGNED takes effect when the feedback device is initialized, for example when it is first selected or later reset. FB#.INITSIGNED does not change the feedback position after the device has been initialized.
-
- Linear encoders are not supported.
Usage
- Setting FB#.INITSIGNED to 0 treats the initial position feedback as an unsigned value. FB#.P will always be set to a non-negative value at initialization.
- Setting FB#.INITSIGNED to 1 treats the initial position feedback as a signed value. If the most significant bit of the multiturn bits from the feedback is 1, FB#.P will be sign extended to a 64-bit negative value.
Context
See Feedback # View.
Versions
|
Action |
Version |
Notes |
|---|---|---|
|
Implemented |
02-07-00-000 |
General Information
|
Type |
Read/Write |
|
Units |
N/A |
|
Range |
0, 1 |
|
Default Value |
1 |
|
Data Type |
Integer |
|
Stored in Non-Volatile Memory |
Yes |
Variants Supported
All variants are supported.
Fieldbus Information
|
Command |
Index |
SubIndex |
Data Type |
Units |
Float Scale |
Access |
PDO Mappable |
|---|---|---|---|---|---|---|---|
|
FB1.INITSIGNED |
3500h |
11h |
Unsigned8 |
- |
- |
Read/Write |
No |
|
FB2.INITSIGNED |
3501h |
11h |
Unsigned8 |
- |
- |
Read/Write |
No |
|
FB3.INITSIGNED |
3502h |
11h |
Unsigned8 |
- |
- |
Read/Write |
No |
|
FB4.INITSIGNED |
3503h |
11h |
Unsigned8 |
- |
- |
Read/Write |
No |
|
FB5.INITSIGNED |
3504h |
11h |
Unsigned8 |
- |
- |
Read/Write |
No |
|
ID |
Instance |
Attribute |
Name |
Data Type |
Access |
User Mappable |
|---|---|---|---|---|---|---|
|
30540 |
1 |
30540 (0x774c) |
FB1.INITSIGNED |
Unsigned8 |
Read/Write |
Yes |
|
30541 |
1 |
30541 (0x774d) |
FB2.INITSIGNED |
Unsigned8 |
Read/Write |
Yes |
|
30542 |
1 |
30542 (0x774e) |
FB3.INITSIGNED |
Unsigned8 |
Read/Write |
Yes |
|
30543 |
1 |
30543 (0x774f) |
FB4.INITSIGNED |
Unsigned8 |
Read/Write |
Yes |
|
30544 |
1 |
30544 (0x7750) |
FB5.INITSIGNED |
Unsigned8 |
Read/Write |
Yes |
|
Parameter |
PNU |
Data Type |
Access |
Units |
|---|---|---|---|---|
|
FB1.INITSIGNED |
30540 |
Unsigned8 |
Read/Write |
- |
|
FB2.INITSIGNED |
30541 |
Unsigned8 |
Read/Write |
- |
|
FB3.INITSIGNED |
30542 |
Unsigned8 |
Read/Write |
- |
|
FB4.INITSIGNED |
30543 |
Unsigned8 |
Read/Write |
- |
|
FB5.INITSIGNED |
30544 |
Unsigned8 |
Read/Write |
- |
