Rockwell Automation 20-COMM-D DeviceNet Adapter Series B FRN 2.xxx User Manual

Page 148

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6-20

Using Explicit Messaging

20-COMM-D DeviceNet Adapter User Manual

Publication 20COMM-UM002G-EN-P

Figure 6.21 Example Single Read Request Data File

Table 6.I Example Single Read Response Data

Figure 6.22 Example Single Read Response Data File

Address

Value

Description

Hex.

(1)

(1)

In RSLogix 5 software, leading zeros are not displayed in data file addresses. For example, ‘0004’ in address

N30:71 is shown as ‘4’.

Dec.

N30:70

0101

257

TXID = 01, Status = 01 (successful)

N30:71

0004

4

Port = 00, Size = 04 bytes

N30:72

8E01

-29183

Service = 8E (successful), Address = 01 (Node)

N30:73

0009

9

(2)

(2)

In this example, Output Current is a 32-bit integer parameter. For PowerFlex 700S or PowerFlex 750-Series

drives, Output Current is a floating point number. To manipulate REAL data into a proper Float tag, see the

‘Communications’ section in Chapter 1 of the PowerFlex 700S AC Drives Phase II Control Reference Manual,

publication PFLEX-RM003.

Parameter Value Read (LSW) = 0.09 amps

N30:74

0000

0

(2)

Parameter Value Read (MSW) = 0

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