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Control Commands
optoNCDT ILR 1183
8.1.4
DX - Distance Tracking With Cooperative Target (50 Hz)
The DX mode uses a steady measuring rate of 50 Hz. It is primarily intended for applications where there is
uniform carrier motion up to a rate of 4 m p. sec. The high measuring rate of 50 Hz is achieved by involving
previously measured values in calculation of a currently measured value. Distance jumps greater than 16 cm
should be avoided. A white target board is a necessary prerequisite for stable distance readings.
8.1.5
DF - Distance Measurement with External Trigger
In the DF mode, measurement begins on arrival of an external trigger pulse. This trigger pulse releases a
single distance shot.
Desired settings for the Measuring Time, the trigger edge (“Trigger Level”) and the delay in triggering (“Trig-
ger Delay”) can be made in the Master’s configuring tool, using the Encoder profile and Class 2 encoder
functionality.
Trigger mode must be active.
8.2
Parameter
Settings can be made for each parameter in the Master configuration tool, using the Encoder profile and
Class 2 encoder functionality. For a description, you should refer to the special configuring tool documenta-
tion.
The configuring tool of the Master uses the GSD file as input to create parameters for the slave. It must have
sent these parameters at least once to the slave before the slave will be able to work in cyclical data ex-
change mode. The slave has been programmed with enough tolerance to allow operation with only its seven
byte standard PB parameters (that means without any profile-adapted user parameters). Where the Master is
unable to send user parameters, the EEPROM’s previously stored parameters will be used. This may make
sense in SSI encoder applications without involvement of a Profibus. In such cases, the sensor must be
parameterized once, using the Profibus. The selected parameter settings must then be saved, the Profibus
disabled again and the SSI interface terminal be activated.
8.2.1
Class 2 Function
Selects slave type according to Encoder profile.
8.2.2
Extended Diagnostics
Transmits more than six standard diagnostic bytes (16 bytes as Class 1 Slave, 61 bytes as Class 2 Slave).
Summary of Contents for optoNCDT ILR 1183
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