Protocols for position value output
Leuze electronic GmbH + Co. KG
BPS 8
75
Description
Bit F0:
If this bit is set to 0, the position data is output.
The request cycle must be greater than 10 ms. If no position data request occurs within
10 s, the laser is deactivated. A response telegram is sent to a repeat position data request
after approx. 30 ms.
If this bit is set to 1, the diagnostic data are sent in response. An indicated error is reset
once all diagnostic data has been polled. This is indicated by the status LED changing from
red to green.
Bit F2:
If this bit is set to 1, the Standby mode is activated.
The polygon wheel motor and the laser are switched off in Standby. Diagnosis of the read
system cannot be performed. When the device is reactivated (bit F2 = 0), the system start-
up time is approx. 5 s.
Priority of the bits in the request byte:
• Priority 1: Diagnostic data request
• Priority 2: Standby request
• Priority 3: Position data request
9.3.3 BPS 8 SM 10x
-
03 response telegram
The response telegram consists of 5 bytes.
Byte
Bit
Name Function
Description
0
0
A0
Address A1A0 in
RS 485 network
00 = Address 0
01 = Address 1
1
A1
10 = Address 2
11 = Address 3
2
–
None
Without function, bit permanently set to 0
3
–
None
Without function, bit permanently set to 0
4
F0
Coded data request
through the 3 bits F2,
F1, F0
Coded request
F2
F1
F0
Meaning
5
F1
0
0
0
Request position data
0
0
1
Request diagnostic data
6
F2
1
0
0
Activate Standby mode
7
CMD
Command flag
1 = valid request. The request byte is
evaluated.
0 = invalid request. The request byte is
not evaluated.
NOTE
A0 and A1 are the address bits. If several BPS 8 operate in an RS 485 network, an address
configuration is required. Every BPS 8 is supplied with the Standard address 0. The address
assignment (Default: 0) is performed using the BPS Configuration Tool (see chapter 8.5.3
NOTE
RS485 network!
An MA 8-01/MA 8-02 connection unit is mandatory for the operation of the BPS 8 in an RS485
network (see chapter 4.2 "MA 8-01 / MA 8-02 connection unit").
NOTE
Only ever one of the F2 and F0 bits should be set in the request byte, because the BPS can
only respond to one request. If several bits are set, the function with the highest priority is
executed.
