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The device WPA-F / WRA-F with specific ordering code requested communicates as an Encoder device compliant to Profinet Encoder
Profile ver 4.2 class 4.
With this Profile only one cursor is detectable and measured by the device.
With this Profile communication modules are standardized and called Telegrams; different telegrams are available for the WPA-F /
WRA-F Encoder.
● Standard Telegram 81
This telegram foresees 4 bytes of output (Master to Device) and 12 bytes of input (Device to Master)
OUTPUT DATA
Word Data
1
Byte Data
0
1
Output
STW2_ENC
value
Encoder
Meaning
control word
2
INPUT DATA
Word Data
1
Byte Data
0
1
Output
ZSW2_ENC
value
Status word
Meaning
2
● Standard Telegram 82
This telegram foresees 4 bytes of output (Master to Device) and 14 bytes of input (Device to Master)
OUTPUT DATA
Word Data
1
Byte Data
0
1
Output
STW2_ENC
value
Encoder
Meaning
control word
2
INPUT DATA
Word Data
1
Byte Data
0
1
Output
ZSW2_ENC
value
Status word
Meaning
2
80715_MAN_WPA-F_WRA-F_03-2021_ENG
5. ENCODER PROFILE
5.1. Process Data Structure
2
2
3
G1_STW
Sensor
control
word
2
3
4
2
3
4
5
6
G1_ZSW
G1_XIST1
Status
Position value
word
2
2
3
G1_STW
Sensor
control
word
2
3
4
2
3
4
5
6
G1_ZSW
G1_XIST1
Status
Position value
word
5
6
7
8
9
10 11
G1_XIST2
Position value 2
5
6
7
8
9
10 11 12
G1_XIST2
NIST_A
Position value 2
Velocity
7
13
11
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