Leuze BPS 8 - Page 89

Protocols for position value output
Leuze electronic BPS 8 88
TNT 35/7-24V
Function sequence when a marker bar code is in the detection area:
Figure 9.1: Function sequence for marker bar code inside the detection area
Marker bar code in the detection range
• The respective MM bit in the status byte is set.
• Marker data are stored in the memory.
• Marker data can only be overwritten by new marker data.
• The memory is deleted:
• after power off/on.
• in Standby mode.
• if no polling takes place for 10s.
Marker data
are retrieved.
Marker data are not
retrieved.
New or old
marker bar code is
detected.
• Marker data are retrieved by the request telegram.
• Marker data are deleted from the memory.
• The respective MM bit in the status byte is reset once the
memory no longer contains any data.
New or old marker bar code is detected.