Reading parameter values – Rockwell Automation 20-COMM-H RS485 HVAC Adapter FRN 2.xxx User Manual

Page 54

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5-8

Using Metasys N2

20-COMM-H RS-485 HVAC Adapter User Manual

Publication 20COMM-UM009D-EN-P

Using Metasys Configurable
Objects to Access Parameters

Configurable objects are inputs and outputs that let you read and write
parameter values. These objects handle only 16-bit parameter values.

Reading Parameter Values

The configurable points may show any 16-bit parameter in the drive by
configuring the Param# point. The Param# for INx points are stored in the
RAM in the adapter and need to be written to only one time per power cycle.

The adapter reads the value of the drive parameter configured in the Param#
point and shows the result in the User INx point. The adapter reads the
parameter values from the drive continuously one at a time when Param# is
set to a non-zero value. See

Figure 5.1

and

Table 5.P

.

Figure 5.1

Configurable Input Point Operation Objects Inputs

Table 5.O Logic Status and Feedback: Analog Inputs

Network Point
Type (NPT)

Network Point
Address (NPA)

Parameter
Description

Range

AI

1

Product Status
Word

16-bit word. Bit definitions for PowerFlex 70/700
drives are in

Table 5.N

. For other products, refer

to their documentation.

AI

2

Feedback Lo

-100.0…100.0%

Table 5.P Configurable Objects: Inputs

Network Point
Type (NPT)

Network Point
Address (NPA) Name

Description

Default

AI

3

User IN1

User-defined Input 1

0

AI

4

User IN2

User-defined Input 2

0

AI

5

User IN3

User-defined Input 3

0

AI

6

User IN4

User-defined Input 4

0

ADI

1

Param # for IN1 0 (not in use), 1 to maximum # of drive

parameters

0

ADI

2

Param # for IN2 0 (not in use), 1 to maximum # of drive

parameters

0

ADI

3

Param # for IN3 0 (not in use), 1 to maximum # of drive

parameters

0

ADI

4

Param # for IN4 0 (not in use), 1 to maximum # of drive

parameters

0

ADI

AI

Controller

Drive

Param#

for INx

User

INx

Request

Response Data

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