Nonvolatile Storage Object - Allen-Bradley 1444-TSCX02-02RB User Manual

Nonvolatile Storage Object

The Nonvolatile Storage Object (class code 0xA1) is a vendor-specific object
that, on the Dynamix 1444, provides a means for firmware update using
ControlFLASH™ software.
Table 310 - Object Instances
Instance ID Description
0 NVS Class Instance
1 Instance 1 of the NVS object (NetX firmware)
2 Instanc2 of the NVS object (DSP firmware)
Table 311 - Class Attributes
Attribute Access NV
ID Rule
1 Get NV
2 Get V
3 Get V
Table 312 - Instance Attributes
Attribute Access NV Name
ID Rule
1 Get V Status
2 Get V
Revision
Minor Instance
Revision
3 Get V Size
4 Get V Checksum
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
Name Data Description of
Type
Attribute
Revision UINT Current revision of this Object
Maximum UINT Maximum instance number of an
Instance object that is created in this class
level of the device.
Number of UINT Number of object instances. The
Instances number of object instances at this
class hierarchy level that is created
at this class level of the device.
Data Description of Attribute
Type
UINT Status of the NVS object.
major Instance USINT Current major revision
number of this NVS instance.
USINT Current minor revision
number of this NVS instance.
UDINT Number of bytes contained in
this NVS instance.
UDINT Checksum/CRC or similar
value that is embedded
within the collection of bits.
CIP Objects Appendix A
Semantics of
Values
Current revision: 3
The largest instance
number of a created
object at this class
hierarchy level.
The number of
object instances at
this class hierarchy
level.
Semantics of
Values
Status
Returns the
checksum/CRC
value
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