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LBB + NBB
Dip switch setting:
6
OFF
The reply received from the light curtain is composed of 4 bytes.
The first two bytes are related to LBB data
The second two bytes are related to NBB.
LBB data is the binary conversion of the LBB id number.
NBB data is the binary conversion of the NBB number.
The order of bytes in the protocol is same as example described for FBB + NBB setting.
LBM + NBM
Dip switch setting:
6
ON
The reply received from the light curtain is composed of 4 bytes.
The first two bytes are related to LBM data
The second two bytes are related to NAB.
LBM data is the binary conversion of the LBM id number.
NAB data is the binary conversion of the NAB number.
The order of bytes in the protocol is same as example described for FBB + NBB setting.
Continues bitmap transmission
Dip switch setting:
6
ON
This setting allows the light curtain to transmit the bitmap of optics every cycle time.
The interrogation code is used as a start and stop trigger.
After power-on the LC waits for the interrogation code to start transmitting.
When interrogation code was received the LC continuously sends out the updated bitmap of
optics every cycle time. When the light curtain receives a further interrogation code it stops
transmitting and waits for the next interrogation code to start again the transmission.
The order of bitmaps is described in 'Bitmap of optics' on page 5-5.
F3EM2 MEASURING LIGHT CURTAINS OPERATION MANUAL
5-4 Communication protocol for serial output
7
8
ON
ON
7
8
OFF
OFF
7
8
ON
OFF
Bitmap + Analogue out (FBB)
Type of function
LBB + NBB
Type of function
LBM + NAB
Type of function
5
5-7
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