Module Configuration Attributes
Rockwell Automation Publication MOTION-RM003I-EN-P - February 2018 473
The following collection of Module Class Attributes are stored in the controller
and used to configure Motion Device Axis Object Class attributes associated with
the CIP Motion device. These attributes generally apply to the CIP Motion
connection behavior. If these Module Class attributes are included in the CIP
Motion Control Axis Object implementation, the attribute values are the same for
all axis instances associated with the module. In such an implementation, the
controller need only apply the Module Class attribute value for one of the axis
instances to configure the corresponding Motion Device Axis Object Class
attribute of the device.
Controller Update Delay High Limit
Usage Access T Data
Type
Default Min Max Semantics of Values
Optional Set
SINT 4 1 10 # of Controller Update Periods
Represents the high limit delay threshold for a Controller to Device (C-to-D)
Connection update. This delay is specified in units of Controller Update Periods.
Exceeding this limit results in a Control Connection Update Fault.
Controller Update Delay Low Limit
Usage Access T Data
Type
Default Min Max Semantics of Values
Optional Set
SINT 2 1 10 # of Controller Update Periods
Represents the low limit delay threshold allowed for a Controller to Device
(C-to-D) Connection update. This delay is specified in units of Controller
Update Periods. Exceeding this limit results in a Control Connection Update
Alarm.
Sync Threshold
Usage Access T Data
Type
Default Min Max Semantics of Values
Optional Set
DINT 10000 1 10
9
Nanoseconds
Default: device dependent
minimum value
Determines the threshold for the Observed Variance of System Time below which
the Motion Device Axis Object is considered synchronized. The Group_Sync
service uses this as a criterion for a successful response.
See also
Module Axis Attributes on page 474
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