Object directory of the encoder
ATM60-Cxx 03/2007 33
Any change in this object has the effect of resetting the preset and offset values.
9.2.1.4 Object 6003 hex: preset value
Description
By means of this object, the current position value is set to the preset value.
Explanation
The encoder calculates an offset value from the current position value and the preset value. This offset value
can be read out via object 6509
hex
. The execution of the preset function is carried out with a write access to
this object. The current position value from the encoder is in this case set to the transmitted preset value. The
preset value and the calculated offset value are stored in a non-volatile manner in an Eeprom.
It should be noted that the Eeprom has a write cycle of 1 million cycles. This means that this memory location
can become defective if 1 million write cycles is exceeded.
The preset and offset values are deleted by means of the following actions:
· Executing the functions restore default parameters
· Changing the resolution per revolution (object 6001
hex
)
· Changing the total number of measuring steps (object 6002
hex
)
· Changing the setting of the scaling function (object 6000
hex
, bit 1)
9.2.1.5 Object 6004 hex: position value
Description
Via this object, the current position value is read.
9.2.1.6 Object 6200 hex: cycle timer
Description
Defines the transmission time for all asynchronous PDOs. A timer-controlled output becomes active when a
cycle time <> 0 is programmed.
If the value of the object = 0, then the output is controlled by a position value change.
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