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

Page 71

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Using Block Transfer Messaging

5-13

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

Publication 20COMM-UM004D-EN-P

Block Transfer Data Files for Example Program—All SLC Versions

The following set of data files shows a read of drive parameter 1 - [Output
Freq]. The value of parameter 1 is 213 (21.3 Hz).

Request and Control Data to Read Drive Parameter 1 (Hex)

Response and Control Data to Read Drive Parameter 1 (Hex)

The following set of data files shows a write of drive parameter 41 - [Motor
NP Volts]. The value written is 2300 (230.0V AC).

Request and Control Data to Write to Drive Parameter 41 (Hex)

Response and Control Data to Write to Drive Parameter 41 (Hex)

Address

Value (hex)

Description

See Page

N12:10

000A

Length of Message = 10 bytes (A hex)

5-3

N12:11

0081

Required Setting

5-3

N12:12

000E

Service = Get_Attribute_Single

C-1

N12:13

0093

Class = 93 DPI Parameter Object

C-5

N12:14

0001

Instance = Parameter 1 (1 hex)

C-5

N12:15

0009

Attribute = 09 DPI Parameter Value

C-6

Address

Value (hex)

Description

See Page

N13:110

0004

Length of Message = 4 bytes

5-4

N13:111

0000

The Message was Successful

5-4

N13:112

0000

N13:113

00D5

Response Data = 213 (D5 hex) = 21.3 Hz.

n/a

Address

Value (hex)

Description

See Page

N12:10

000C

Length of Message = 12 bytes (C hex)

5-3

N12:11

0081

Required Setting

5-3

N12:12

0010

Service = Set_Attribute_Single

C-1

N12:13

0093

Class = 93 DPI Parameter Object

C-5

N12:14

0029

Instance = Parameter 41 (29 hex)

C-5

N12:15

0009

Attribute = 09 DPI Parameter Value

C-6

N12:16

08FC

Data = 2300 (8FC hex) = 230.0V AC

n/a

Address

Value (hex)

Description

See Page

N13:110

0002

Length of Message = 2 bytes

5-4

N13:111

0000

The Message was Successful

5-4

N13:112

0000

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