Instance attributes, Dsi parameter object – Rockwell Automation 22-COMM-C ControlNet Adapter User Manual

Page 142

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C-24

ControlNet Objects

Instance Attributes

DSI Parameter Object

(Continued)

Attribute
ID

Access
Rule

Name

Data Type

Description

7

Get

Online Read Full

STRUCT of:

BOOL[32]
CONTAINER

(1)

CONTAINER
CONTAINER
CONTAINER
WORD
WORD
STRING[4]
UINT
UINT
UINT
INT
BYTE[3]
BYTE
STRING[16]

Descriptor (Refer to pages

C-25

C-26

)

Parameter value
Minimum value
Maximum value
Default value
Next parameter
Previous parameter
Units (e.g., Amp, Hz)
Multiplier

(2)

Divisor

(2)

Base

(2)

Offset

(2)

Link (source of the value) (0 = no link)
Always zero (0)
Parameter name

8

Get

Descriptor

BOOL[32]

Descriptor (Refer to pages

C-25

C-26

)

9

Get/Set Parameter Value

Various

Parameter value in NVS.

(3)

10

Get/Set RAM Parameter

Value

Various

Parameter value in temporary memory.

11

Get/Set Link

BYTE[3]

Link (parameter or function block that is
the source of the value) (0 = no link)

12

Get

Help Object
Instance

WORD

ID for help text for this parameter

13

Get

Read Basic

STRUCT of:

BOOL[32]
CONTAINER
CONTAINER
CONTAINER
CONTAINER
STRING[16]
STRING[4]

Descriptor (Refer to pages

C-25

C-26

)

Parameter value
Minimum value
Maximum value
Default value
Parameter name
Units (e.g., Amp, Hz)

14

Get

Parameter Name STRING[16]

Parameter name

15

Get

Parameter Alias

STRING[16]

Customer supplied parameter name.

16

Get

Parameter
Processing Error

BYTE

0 = No error
1 = Value is less than the minimum
2 = Value is greater than the maximum

(1)

A CONTAINER is a 32-bit block of data that contains the data type used by a parameter value. If signed, the value
is sign extended. Padding is used in the CONTAINER to ensure that it is always 32-bits.

(2)

This value is used in the formulas used to convert the parameter value between display units and internal units.
Refer to

Formulas for Converting on page C-26

.

(3)

Do NOT continually write parameter data to NVS. Refer to the attention on

page 6-1

.

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