Instance attributes – Rockwell Automation 20-COMM-R Remote I/O Adapter User Manual

Page 92

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C-6

CIP Objects

20-COMM-R Remote I/O Adapter User Manual

Publication 20COMM-UM004D-EN-P

Instance Attributes

Attribute ID Access Rule

Name

Data Type

Description

7

Read Only

DPI 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 (see

page C-7

)

Parameter value

Minimum value

Maximum value

Default value

Next parameter

Previous parameter

Units (for example, Amp, Hz)

Multiplier

(2)

Divisor

(2)

Base

(2)

Offset

(2)

Link (source of the value) (0 = no link)

Always zero (0)

Parameter name

8

Read Only

DPI Descriptor

BOOL[32]

Descriptor (see

page C-7

)

9

Read/Write

DPI Parameter Value

Various

Parameter value in NVS.

(3)

10

Read/Write

DPI RAM Parameter Value

Various

Parameter value in temporary memory.

11

Read/Write

DPI Link

BYTE[3]

Link (parameter or function block that is the

source of the value) (0 = no link)

12

Read Only

Help Object Instance

WORD

ID for help text for this parameter

13

Read Only

DPI Read Basic

STRUCT of:

BOOL[32]

CONTAINER

CONTAINER

CONTAINER

CONTAINER

STRING[16]

STRING[4]

Descriptor (see

page C-7

)

Parameter value

Minimum value

Maximum value

Default value

Parameter name

Units (for example, Amp, Hz)

14

Read Only

DPI Parameter Name

STRING[16]

Parameter name

15

Read/Write

DPI Parameter Alias

STRING[16]

Customer supplied parameter name.

16

Read Only

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. See

Formulas for

Converting on page C-8

.

(3)

Do

not continually write parameter data to NVS. See the attention on

page 5-1

.

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