MEM-BUS
EtherNet/IP™ ENCODER
Instruction Manual
ENIP_Manual_ENG 17/07/2018
35
4.6 Preset function
The Preset function is used to adjust the measuring system to any position value within a range to the total
measuring length – 1. Two modes are available:
Preset button:
The position value is set to zero when preset button is pressed.
This button is active only
when the encoder is powered.
Note: Pressing the preset button result in a change of position reading. This can cause unexpected motion
which could result in personal injury or damage to the product or equipment.
PLC command:
The preset function can be performed by writing the Preset attribute value (class 23H,
instance 1, attribute 19) with an explicit message in the PLC program.
Note:
1.
When the scaling parameters change, it is recommended to execute a Preset function (writing of
attribute 19) in order to reset the encoder and restart it from a correct position.
2.
When the scaling function is disabled (attribute 14 = 0), the Preset value shall be lower than the
global physical resolution (536870912).
3.
When the scaling function is enabled (attribute 14 = 1), the Preset value shall be lower than the
total resolution (attribute 17).
In your PLC program, create a new message data type named
Preset_msg
and a DINT named
Preset_val
.
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