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Command Interface
SDO Request
5 – 2
MITSUBISHI ELECTRIC
5.1 SDO
Request
The NMT Master Startup process uses SDOs. An error may be returned by the CIF (command interface)
if during command execution the NMT Master accesses the remote node at the same time.
5.1.1
CIF SDO read access
Execution procedure: CIF SDO read access
●
Write the command code 0004
H
for SDO read access to Un\G1000.
●
Write the Node number and the Index / Sub-index of the target Object Dictionary to Un\G1001
to Un\G1003.
●
After writing all the necessary parameters turn ON Y(n+1)7 in order to trigger the command
execution. If the command execution is finished, X(n+1)7 will be turned ON.
●
If the access has been successful, Un\G1000 will contain "5" and Un\G1001 to Un\G1003 will
contain the node number, index and sub index for verification purposes. The length of the read
data (in byte) will be stored in Un\G1004. Un\G1005 to Un\G1066 will contain up to 124 data bytes.
Buffer memory allocation
Node number 0 is accessing the local ME3CAN1-L modules Object Dictionary, regardless of its real node address. This is
useful as the configuration of the local node can be programmed independently from the node address.
Result data structure in Un\G1005 to Un\G1066
Address
(Decimal)
Description
Transmit message
Receive message
1000
Command 0004
H
: SDO read
앫
0005
H
: SDO read success
앫
000F
H
: Error (Refer to section 5.4)
앫
FFFF
H
: CIF Busy
1001
Node number
���
Node number
���
(read back)
1002
Index
Index (read back)
1003
앫
Low byte: Sub index
앫
High byte: Reserved
Sub index (read back)
1004
Unused
Data length (read back)
1005–1066
Unused
Result data
Tab. 5-2:
Buffer memory allocation for CIF SDO read access
Address
(Decimal)
Description
Tab. 5-3:
Result data structure
High Byte
Low Byte
1005
2nd data byte
1st data byte
1006
4th data byte
3rd data byte
1007
6th data byte
5th data byte
1008
8th data byte
7th data byte
:
:
:
:
:
:
1065
122nd data byte
121st data byte
1066
124th data byte
123rd data byte
Содержание CANopen ME3CAN1-L
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Страница 10: ...IV ...
Страница 18: ...Abbreviations and Generic Terms Overview MELSEC L Series CANopen Module ME3CAN1 L 1 4 ...
Страница 22: ...System Configuration System Equipment 2 4 MITSUBISHI ELECTRIC ...
Страница 66: ...Detailed Description of the Module Buffer Memory Details Layer 2 Message Mode 3 44 MITSUBISHI ELECTRIC ...
Страница 144: ...Programming CANopen PDO Communication using Function Blocks 7 6 MITSUBISHI ELECTRIC Fig 7 6 Example Program 2 ...
Страница 146: ...Programming CANopen PDO Communication using Function Blocks 7 8 MITSUBISHI ELECTRIC Fig 7 8 Example Program 4 ...
Страница 148: ...Programming CANopen PDO Communication using Function Blocks 7 10 MITSUBISHI ELECTRIC Fig 7 10 Example Program 6 ...
Страница 150: ...Programming CANopen PDO Communication using Function Blocks 7 12 MITSUBISHI ELECTRIC Fig 7 12 Example Program 8 ...
Страница 152: ...Programming CANopen PDO Communication using Function Blocks 7 14 MITSUBISHI ELECTRIC Fig 7 14 Example Program 10 ...
Страница 154: ...Programming CANopen PDO Communication using Function Blocks 7 16 MITSUBISHI ELECTRIC Fig 7 16 Example Program 12 ...
Страница 156: ...Programming CANopen PDO Communication using Function Blocks 7 18 MITSUBISHI ELECTRIC Fig 7 18 Example Program 14 ...
Страница 158: ...Programming CANopen PDO Communication using Function Blocks 7 20 MITSUBISHI ELECTRIC Fig 7 20 Example Program 16 ...
Страница 160: ...Programming Layer 2 Communication 7 22 MITSUBISHI ELECTRIC Local Label Setting Fig 7 22 Local Label for this example 1 ...
Страница 161: ...Layer 2 Communication Programming MELSEC L Series CANopen Module ME3CAN1 L 7 23 Fig 7 23 Local Label for this example 2 ...
Страница 162: ...Programming Layer 2 Communication 7 24 MITSUBISHI ELECTRIC Program Fig 7 24 Example Program 1 ...
Страница 163: ...Layer 2 Communication Programming MELSEC L Series CANopen Module ME3CAN1 L 7 25 Fig 7 25 Example Program 2 ...
Страница 164: ...Programming Layer 2 Communication 7 26 MITSUBISHI ELECTRIC Fig 7 26 Example Program 3 ...
Страница 165: ...Layer 2 Communication Programming MELSEC L Series CANopen Module ME3CAN1 L 7 27 Fig 7 27 Example Program 4 ...
Страница 166: ...Programming Layer 2 Communication 7 28 MITSUBISHI ELECTRIC Fig 7 28 Example Program 5 ...
Страница 167: ...Layer 2 Communication Programming MELSEC L Series CANopen Module ME3CAN1 L 7 29 Fig 7 29 Example Program 6 ...
Страница 172: ...Programming Layer 2 Communication 7 34 MITSUBISHI ELECTRIC Fig 7 39 Example Program 2 Set message parameter to module ...
Страница 178: ...Layer 2 Communication Programming MELSEC L Series CANopen Module ME3CAN1 L 7 40 ...
Страница 184: ...Troubleshooting Error Code and Error Message Summary 8 6 MITSUBISHI ELECTRIC ...
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