Technical Manual
WDGA with CANopen-Interface
7 - Object description
© Wachendorff Automation GmbH & Co. KG
34
Rev.1.24
7.4.2 Alarms
Interpretation of object 6503h
(assignment bit - meaning, standard = 0000000000000000):
Bit:
15..1 0
Info: co
Position Error
Table 7.11: Alarms - Object 6503h
7.4.3 Warnings
Interpretation of object 6505h
(assignment bit - meaning, standard = 0000000000000000):
Bit:
15
14
13
12
11..1
0
Info: co
Temp. read failed Undertemp. Overtemp. co
Frequency limit
Table 7.12: Warnings – Object 6505h
7.5 Electronic cam switch (CAM)
Encoders by Wachendorff Automation provide the possibility to configure an electronic
cam switch with 8 cams in one single channel. Every cam is defined by its low and high
limit, the hysteresis and the polarity.
7.5.1 CAM-state-register
The cam state register (object 6300h) represents the state of the 8 cam switches, one
bit per cam. For example the cam state register has the value of 89h:
Position
7(MSB) 6
5
4
3
2
1
0(LSB)
Type
CAM 8 CAM 7 CAM 6 CAM 5 CAM 4 CAM 3 CAM 2 CAM 1
Value
1
0
0
0
1
0
0
1
Logic
High
Low
Low
Low
High
Low
Low
High
Table 7.13: CAM-state-register – Value 89h
That means that the cams 1, 4 and 8 are high and the rest are low. If e.g. the cam 4
toggles to low due to the change of the position value, the cam state register would
become 81h:
Position
7(MSB) 6
5
4
3
2
1
0(LSB)
Type
CAM 8 CAM 7 CAM 6 CAM 5 CAM 4 CAM 3 CAM 2 CAM 1
Value
1
0
0
0
0
0
0
1
Logic
High
Low
Low
Low
Low
Low
Low
High
Table 7.14: CAM-state-register – Value 81h
Содержание WDGA CANopen
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