Pepperl+Fuchs WCS Series - Page 22

2020-01
22
WCS* Read Head Position Encoding System
RS-485 Interface (LS1xx*, LS2xx*)
Data protocol 1 with position and velocity output
Data protocol 2
Data protocol 2 with position and velocity output
Request byte for read head
Byte Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
1 1 0 0 0 0 0 A1 A0
Response telegram from the read head
Byte Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Byte 1 0
OUT ERR A1 A0 DB P18 P17 P16
Byte 2 0
P15 P14 P13 P12 P11 P10 P09 P08
Byte 3 0
P07 P06 P05 P04 P03 P02 P01 P00
Byte 4 0
SST SP6 SP5 SP4 SP3 SP2 SP1 SP0
Byte 5 0
OUT ERR A1 A0 DB P18 P17 P16
Byte 6 0
P15 P14 P13 P12 P11 P10 P09 P08
Byte 7 0
P07 P06 P05 P04 P03 P02 P01 P00
Byte 8 0
SST SP6 SP5 SP4 SP3 SP2 SP1 SP0
Request byte for read head
Byte Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
1 0 1 1 F0 0 0 A1 A0
Response telegram from the read head
Byte Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Byte 1 0
OUT ERR A1 A0 DB P18 P17 P16
Byte 2 0
P15 P14 P13 P12 P11 P10 P09 P08
Byte 3 0
P07 P06 P05 P04 P03 P02 P01 P00
Byte 4 0
Exclusive or link, byte 1 ... Byte 3
Request byte for read head
Byte Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
1 1 1 1 0 0 0 A1 A0
Response telegram from the read head
Byte Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Byte 1 0
OUT ERR A1 A0 DB P18 P17 P16
Byte 2 0
P15 P14 P13 P12 P11 P10 P09 P08
Byte 3 0
P07 P06 P05 P04 P03 P02 P01 P00
Byte 4 0
SST SP6 SP5 SP4 SP3 SP2 SP1 SP0
Byte 5 0
Exclusive or link, byte 1 ... Byte 4