Communication With Wcs Read Heads; Request Byte For Read Heads; Data Format For Modules - Pepperl+Fuchs WCS-EIG310 Manual

WCS-EIG310

Communication with WCS read heads

5 Communication with WCS read heads
5.1

Request Byte for Read Heads

Read head address
Bit
F0=0: The read head sends the position data to the interface module. This standard function is
automatically active after commissioning.
F0=1: The read head sends the results of the diagnostic function.
5.2

Data Format for Modules

In "only Position" operating mode, 4 bytes are reserved for each WCS reader.
Bit
Byte 0
Byte 1
Byte 2
Byte 3
Table 5.1
In "Position and Speed" operating mode, 6 bytes are reserved for each WCS reader.
Bit
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Table 5.2
Pxx: position data, P00 = LSB
Sxx: speed (in multiples of 0.1 m/s), S00 = LSB
Example: Byte 5 = 00011011 = 27, corresponds to 2.7 m/s
A1, A0: reader address, 00 = WCS reader address #1
DB: pollution display, 1 = cleaning necessary
OUT: code rail loss, 0 = code rail recognized
ERR: error display, error code (LEDs)
Read head address
3
7 6 5
0 F0 0
7 6
0 0
P15 P14
P07 P06
0 0
Data format for each connected WCS reader in "only Position" operating mode, reader
address = 0...3
7 6
0 0
P15 P14
P07 P06
0 0
0 0
0 S06
Data format for each connected WCS reader in "Position and Speed" operating mode,
reader address = 0...3
Read head address
2 1
4 3
F0 0
5 4 3
0 0 0
P13 P12 P11
P05 P04 P03
0 DB ERR
5 4 3
0 0 0
P13 P12 P11
P05 P04 P03
0 DB ERR
0 0 0
S05 S04 S03
Read head address
0
2 1 0
F0 0 F0
2 1 0
P18 P17 P16
P10 P09 P08
P02 P01 P00
OUT A1 A0
2 1 0
P18 P17 P16
P10 P09 P08
P02 P01 P00
OUT A1 A0
0 0 0
S02 S01 S00
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