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Closed Loop
The control loop of the machine axis is closed, a T-coupler/signal splitter (Service Adapter
SA 1x0) is connected between the encoder and the subsequent electronics.
The PWM 20 or the IK 215 are connected to the diagnostic output which is metallically isolated.
Now, the ATS software can monitor the data stream between subsequent electronics and
encoder.
Note
The ATS software cannot request data actively; it can only passively monitor data
communication between subsequent electronics and encoder. The closed-loop functionality
only works for interfaces at which the subsequent electronics permanently requests
diagnostic data. (The diagnostic function of the subsequent electronics must be active!)
Otherwise, no data communication can be monitored (possible with EnDat 02, 21 und 22,
Fanuc, Mitsubishi)!
Flow chart for interrogation of diagnostics data:
March 2011 Software Description 77