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2 data structure of nmt message – Delta DVP-ES2 User Manual

Page 674

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D V P - E S 2 / E X 2 / S S 2 / S A2 / S X 2 / S E O p e r a t i o n M a n u a l - P r o g r a m m i n g

7-18

‹ Response

data:

Response message

PLC device

High byte(Hex)

Low byte(Hex)

D6000 ResID

=01

Command

=01

D6001

Reserved =0

Size =8

D6002

Message

Header

Type =43

Node ID =03

D6003

Main index high byte =21

Main index low byte =09

D6004

Reserved =0

Subindex =0

D6005

Datum 1=03

Datum 0=E8

D6006

Message

data

Datum 3=01

Datum 2=02

7.4.2 Data Structure of NMT Message

NMT service can be used managing the CANopen network such as start, operation, reset of nodes
and etc.

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The data format of the NMT request message:

Request message

PLC device

High byte

Low byte

D6250

ReqID

Command (Fixed to 01)

D6251

Reserved

Size (Fixed to 04)

D6252

Message

Header

Type (Fixed to 03)

Node ID

D6253 Reserved NMT

service

code

D6254

Message

data

Reserved Node

ID

—

Command: Fixed to 01.

—

ReqID: The request ID. Whenever an NMT request message is sent out, the message will
be given a ReqID for the CANopen master to identify. Before another NMT request message
is sent out, the original ID number must be changed. In other words, to send out the NMT
request message is triggered by changing of the value of “ReqID”. ReqID range: 00 (Hex) ~
FF (Hex).

—

Node ID: The node address of the target equipment on CANopen network.

—

NMT service code:

NMT service code (Hex)

Function

01 Start

remote

node

02 Stop

remote

node

80

Enter the pre-operational state

81 Reset

application

82 Reset

communication

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The data format of the NMT Response message:

Response message

PLC device

High byte

Low byte

D6000 ResID

Status

code

D6001

Reserved Reserved

D6002

Message

header

Reserved Node

ID

—

When status code is 1, it indicates that NMT operation succeeds. When status code is not

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