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WCS-PG410
Communication with WCS read heads
Description of the protocol data
Byte 1
A1, A0
OVL
VAL
DB
OUT ALL
OUT
ERR
Byte 2 ... 4
XP00 ... XP19
Byte 5
SP0 ... SP6
SST
Byte 5/6
1. For data protocol with velocity output
30
0
1
0:
1
0
1
0
1
0
1
0
1
1
0
1
Address bits of the read head. Addresses 0 ... 3, binary
coding
The read head is located in the readable area of the
code rail
The read head is located on WCS3 code rail extender
(overlapping area of the code rail segments)
Position valid
Position invalid; code rail area is not unique after the
supply voltage has been connected
By default, the diagnostic bit is not set
Diagnostic bit, read head dirty
Read head in code rail
Read head completely outside of the code rail
Read head in code rail
Read head partially outside the code rail. No valid posi-
tion available
No error
Error message (possible errors in XP00 ... XP01 binary
coding)
Current position value, binary coding
Current speed in 0.1 m/s, binary coding
Example:
•
1: Speed = 0.1 m/s
•
37: Speed = 3.7 m/s
•
112: Speed = 11.2 m/s
Speed valid
Current speed unknown. Last valid speed in
SP0 ... SP6 saved
Exclusive or link, byte 1 ... Byte 4/5
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