ELAP MEM440-Bus, Инструкция по эксплуатации

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MEM-BUS
EtherNet/IP™ ENCODER
Instruction Manual
ENIP_Manual_ENG 17/07/2018
19
Attribute 44, Alarms
An alarm is set when the encoder has detected a status which can result in an incorrect position. As soon
as an alarm status is detected, the corresponding bit is set to logical high.

Bit0

Position error

Bit1

Diagnostic error

Bit2, …, Bit11

Reserved

Bit12, …, Bit15

Not used
Attribute 45, Supported Alarms
This attribute contains information about the alarms supported by the device.
ELAP MEM-BUS encoder supports the position error only (Bit 0); so this attribute value is 0001H.
Attribute 46, Alarm Flag
It indicates that an alarm error has occurred (attribute 44 is not zero).
Attribute 47, Warnings
Warnings are signaled by the encoder when the tolerance for certain internal parameters have been
exceeded. In contrast to alarms (attribute 44), warnings don’t imply incorrect position values.

Bit4

Battery charge too low.

Bit6

Velocity has dropped below its minimum value (attribute 27).

Bit7

Velocity has exceeded its maximum value (attribute 28).

Bit10

Position limits exceeded (see attributes 22 and 23).
Attribute 48, Supported Warnings
This attribute contains information about the warnings supported by the device.
ELAP MEM-BUS encoder supports the warnings of battery charge (Bit 4), Position limits exceeded (Bit 10)
and Velocity limits exceeded (Bit6, Bit7); so this attribute value is 04D0H.
Attribute 49, Warning Flag
It indicates that a warning error has occurred (attribute 47 is not zero).
Attribute 51, Offset Value
The offset value attribute is calculated by the preset function and shifts the position value attribute. It is
stored automatically by the device and can be read from the encoder for diagnostic purposes.
It is
Offset (attr.51) = Preset (attr.19) – Position Value (attr.10)
Attribute 100, Rotary Switches Value
The value corresponding to the position of the three rotary switches can be read for diagnostic purposes.
These rotary switches are used by the encoder only at power on. So, it is possible to change their position
when the encoder is powered, in order to check them.