5
Operation
Festo – EXCM-30/-40-...-PF-EN – 1603 – English
43
The status byte SPOS provides feedback about the positioning sequences.
Status byte 2 (SPOS)
Bit
Function
Description
0
Reserved
= 0
Reserved
1
Acknowledge
start
ACK
= 0
= 1
Ready for start
(positioning task or referencing)
Start executed
(positioning task or referencing)
2
Motion complete
MC
= 0
= 1
Positioning task active
Positioning task completed (possibly with error)
3
Reserved
= 0
Reserved
4
Drive is moving
MOV
= 0
= 1
Speed of the axis
limit value
Speed of the axis
limit value
5
Reserved
= 0
Reserved
6
Reserved
= 0
Reserved
7
Drive referenced
REF
= 0
= 1
Homing must be executed
Homing not necessary,
reference information present
Tab. 5.8
Status byte SPOS