Biss C Interface Bml-S1G0-B; Troubleshooting; Eds - Balluff BML-S1G0-7-M5E-0 Serie Manual De Instrucciones

BML-S1G0-_7_ _-M5E_-_0-_ _
Absolute Magnetically Coded Position Measuring System
6
Interfaces (continued)
6.2 BiSS C interface
BML-S1G0-B...)
The BiSS interface is described in the document
Interfaces for BML Magnetically Coded
Position Measuring System (Doc. No. 929191).
The document is part of this guide and must be
used.
The in- and outputs have the following data:
Signal Name in the
name interface
document
+Clk
Input CLK
–Clk
+Data
Output Data
–Data
Tab. 6-5: In- and outputs
Interface data and meaning of the bits
are defined in Tab. 6-6 and Tab. 6-7.
Interface data
Bit number after CDS
Maximum measuring length [m]
Permissible Clk frequency [kHz]
Tab. 6-6: Interface data
Bit names
Null bits (always 0)
Position [incr]
(Bit5 (MSB), Bit32 (LSB))
Error (active low)
Warning (active low)
CRC
Tab. 6-7: Meaning of the bits in the data set
The counter polynomial for CRC determination is
0x43 (hex), 67 (dec) or 1000011 (bin).
www.balluff.com
Shown in Physical
interface layer
document as
high
+Clk > –Clk RS422
+Data > –Data RS422
Value
40
48
0.1...10
Bit number Number of
(after CDS) bits
Bit 1...4 4
Bit 5...32 28
Bit 33 1
Bit 34 1
Bit 35...40 6
6.2.1

Troubleshooting

Information on errors and warnings is available. The
position measuring system outputs a maximum of 8 errors
and 8 warnings. Regardless of the interface, the 16
messages are displayed through different colors (LED off,
red, orange) and LED flashing sequences (see section 8 on
page 25).
In the following, errors and warnings are referred to as EW
events.
If the BML detects an EW event, it makes a note of it and
transmits it with the error/warning bit once during the next
data query. At the same time, an LED flashing sequence
(see section 8 on page 25) is started. This flashing
sequence is output at least once until the data query has
taken place.
If the EW event is present for a longer period of time
across multiple data queries, the corresponding bit is set
and the LED flashing sequence output during each data
query.
If multiple EW events occur successively, the flashing
sequence changes accordingly.
6.2.2

EDS

EDS, electronic data sheet, user area:
This BiSS C function allows the customer to permanently
store and read out, byte by byte, any customer-specific
data in the EEPROM user area of the sensor head via
register communication.
User range: 448 bytes (7 banks of 64 bytes each)
english 17