ELAP MEM440-Bus, Инструкция по эксплуатации

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MEM-BUS
EtherNet/IP™ ENCODER
Instruction Manual
ENIP_Manual_ENG 17/07/2018
17
Attribute 12, Direction Counting Toggle
Rotation direction, seen from the shaft side:

0

CW, the position value increases with a clockwise rotation.

1

CCW, the position value increases with a counter clockwise rotation.
Attribute 14, Scaling Function Control

0

The scaling function is disabled. Physical resolution is used for calculations (13 bit for single
turn and 16 bit for number of revolutions).

1

The scaling function is enabled. The values of attributes 16 and 17 are used for calculations.
Attribute 16, Measuring Units per Span
It sets the number of pulses for a single turn. It is active when the scaling function is enabled (that is
attribute 14 = 1). Values lower or equal to physical resolution (that is 8192 pulses per turn) are accepted.
Note: 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.
Attribute 17, Total Measuring Range
it sets the total measuring range for position values. It is active when the scaling function is enabled (that is
attribute 14 = 1).
The setting value is calculated as:
Measuring Units per Revolution (6001.00) x Number of Revolutions
Values lower or equal to the global physical resolution (that is 536870912) are accepted.
Note: 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.
Attribute 19, Preset Value
It sets the Preset value. The Preset function, that is executed when writing the attribute 19, is used to
adjust the measuring system to any position value within a range to the total measuring length - 1.
Note:
1. When the scaling parameters change, it is recommended to execute a Preset function 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).
Attribute 21, Position Status Register
This attribute contains the actual area status of the encoder position (see attributes 22 and 23).

Bit0 = 1, if the position value is out of range (attributes 22 and 23)

Bit1 = 1, if the position value is higher than its high limit (attribute 23)

Bit2 = 1, if the position value is lower than its low limit (attribute 22)
This function allows a replacement of external proximity switches.