Rockwell-automation 842D-60131331BXA DeviceNet Encoder User Manual Bedienungsanleitung PDF herunterladen (Seite 51)

DeviceNet Objects B-9

83 Alarms Get WORD

Malfunction could lead to incorrect position value. See

“Designation of Alarm Bits‘, page B-10.

Any alarm will set the 'ALARM FLAG'.

85 Alarm flag Get BOOL

This flag indicates a device failure that requires user intervention.

The 'ALARMS' indicate the specific failure. This value will be

reported if 'INPUT ASSY.' is set to 'Position + Flags' as bit 0 of the

5th byte.

86 Warnings Get WORD

Internal parameters exceeded. See “Designation of Warning Bits‘,

page B-10.

Any warning will set the 'WARNING FLAG'. The 'Frequency

Exceeded' warning is caused by rotating faster then 6000 RPM.

The Velocity min/max flag is caused by a 'VELOCITY VALUE'

under or over the velocity limits. The Acceleration min/max flag is

a 'ACCELERATION VALUE' under or over the acceleration limits.

The 'Cam Limits Out of Order' flag is caused by a set of cam limits

where the hysteresis value is larger then the cam lower limit, or

the higher or lower limit that is greater than the 'TOTAL

MEASURING RANGE'.

88 Warning flag Get BOOL

Indicates if any of the 'WARNINGS' are active. This value will be

reported if the 'INPUT ASSY’ is set to 'Position + Flags' as bit 1 of

the 5th byte."

90 Operating time Get UDINT Stores operating time for the encoder in operating hours.

91 Offset value Get DINT

The offset value is calculated by the preset function. Shift position

value by the calculated value.

111

Assembly

Number -

Polling Mode

Get USINT

The type of input data that is sent for the Polling I/O connections.

– Position = 4 bytes

– Position + Cam State = 5 bytes

– Position + Flags = 5 bytes

– Position + Velocity = 8 bytes

– Update time: Velocity 50 mS, other modes 0.3 mS

112

Assembly

Number - COS/

Cyclic Mode

Get USINT

The type of input data that is sent for the Change of State I/O

connections.

– Position = 4 bytes

– Position + Cam State = 5 bytes

– Position + Flags = 5 bytes

– Update time: 0.3 mS

– Velocity not supported.

113

Assembly

Number - Bit

Strobed Mode

Get USINT

The type of input data that is sent for the Strobed I/O connections.

– Position = 4 bytes

– Position + Cam State = 5 bytes

– Position + Flags = 5 bytes

– Position + Velocity = 8 bytes

– Update time: Velocity 50 mS, other modes 0.3 mS.

Attr. ID Attribute Access Data type Description

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