Operating instructions

Absolute Rotary Encoders
87
Pepperl+Fuchs Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.am.pepperl-fuchs.com
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PEPPERL+FUCHS
Absolute Encoders DSS58/DSM58 Series
Programming
Description
The connected host requests the current actual position value via a telegram. The absolute
encoder reads in the current position, calculates all parameters that may have been set and
then sends back the actual process value.
The absolute encoder sends the current process value depending on a programmable timer.
This can cause the bus load to be reduced since the member on the network only sends a
message after a specific amount of time without a prompt from the master.
The absolute encoder monitors the current process value and transfers the current value by
itself if there is any change in the value. This can cause the bus load to be reduced, since the
member on the network only sends a message if there has been a change.
Mode
Polled mode
Cyclic mode
Change of state mode
Description
The direction of rotation (complement) can be specified as the operating parameter. This
parameter determines the direction of rotation in which the output code will be rising or
declining.
The "Resolution" parameter is used to program the rotary encoder so that a desired number
of steps can be implemented in reference to a revolution.
The preset value is the desired position value that must be achieved for a specific physical
setting of the axis. The preset value parameter is used to set the actual position value to the
desired actual process value.
Parameter
Operating parameter
Resolution per revolution
Preset value
Programmable CAN operating modes
Programmable rotary encoder parameters
Description
The direction of rotation (complement) can be specified as the operating parameter. This
parameter determines the direction of rotation in which the output code will be rising or
declining.
The "Resolution" parameter is used to program the rotary encoder so that a desired number
of steps can be implemented in reference to a revolution.
This parameter indicates the desired number of measurement units of the entire travel length.
This value must not exceed the overall resolution of the absolute encoder.
The preset value is the desired position value that must be achieved for a specific physical
setting of the axis. The preset value parameter is used to set the actual position value to the
desired actual process value.
Parameter
Operating parameter
Resolution per revolution
Overall resolution
Preset value
DSM58
DSS58