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