FB1.USERDWORD0 to FB1.USERDWORD1
Description
FB1.USERBYTE, FB1.USERWORD, and FB1.USERDWORD share two 32 bit words in an EnDat or HIPERFACE feedback deviceA process whereby some proportion of the output signal of a system is passed (fed back) to the input. In automation, a device coupled to each motor to provide indication of the motor's shaft angle, for use in commutating the motor and controlling its speed and position. These three parameters offer different ways to store and access the data stored in these two 32 bit words. The table below defines each parameters function. The values are automatically stored non-volatile in the feedback device.
Parameter | Bits | Attributes |
---|---|---|
FB1.USERBYTE0 to FB1.USERBYTE7 | 8 bit | signed or unsigned char |
FB1.USERWORD0 to FB1.USERWORD3 | 16 bit | signed or unsigned short |
FB1.USERDWORD0 to FB1.USERDWORD1 | 32 bit | singed or unsigned int |
The parameters overlap each other in the following way:
BYTE0 | BYTE1 | BYTE2 | BYTE3 | BYTE4 | BYTE5 | BYTE6 | BYT7 |
WORD0 | WORD1 | WORD2 | WORD3 | ||||
DWORD0 | DWORD1 |
For example, if BYTE1 is modified, WORD0 and DWORD0 are modified as well.
Example
-->FB1.USERDWORD1 65536
-->FB1.USERBYTE1
0
-->FB1.USERBYTE2
1
-->FB1.USERBYTE3
0
-->FB1.USERBYTE3 1 (write to the highest byte of FB1.USERDWORD0)
-->FB1.USERDWORD0
16842752
-->FB1.USERWORD0
0
-->FB1.USERWORD1
257
General Information
Type |
R/W |
Units |
N/A |
Range |
0 to 4,294,967,295 |
Default Value |
0 |
Data Type |
Integer |
Start Version |
M_01-05-08-000 |
FieldbusA Fieldbus is an industrial network system for real-time distributed control (e.g. CAN or Profibus). It is a way of connecting instruments in a plant design | Index/Subindex | Object Start Version | |
---|---|---|---|
/1 |
FB1.USERDWORD1 |
M_01-00-00-000 | |
34B0h/2 |
FB1.USERDWORD2 |
Related Topics
Feedback 1 | FB1.USERBYTE0 to FB1.USERBYTE7 | FB1.USERWORD0 to FB1.USERWORD3