3 SLMP
3.2 Message format
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3
3.2
Message format
The following shows the request message format to be used when the master station (external device) sends a message, and
the response message formats to be used when the slave stations (servo amplifiers) return a message.
Request message format
Response message format
The response message has two different formats for normal completion and abnormal completion.
• At normal completion
• At abnormal completion
Ethernet
UDP
IP
SLMP
Request
destination
multi-drop
station No.
Request
destination
module
I/O No.
Footer
Subheader
Request
destination
network No.
Request
destination
station No.
Request
data length
Monitoring
timer
header
header
header
Request data
Ethernet
UDP
IP
SLMP
Request
destination
multi-drop
station No.
Request
destination
module
I/O No.
Footer
Subheader
Request
destination
network No.
Request
destination
station No.
Request
data length
Monitoring
timer
header
header
header
Request data
Ethernet
UDP
IP
SLMP
SLMP
Request
destination
multi-drop
station No.
Request
destination
module
I/O No.
Subheader
Request
destination
network No.
Request
destination
station No.
Response
data length
header
header
header
Network
No.
(responding
station)
Request
destination
multi-drop
station No.
Request
destination
module
I/O No.
Footer
End code
Station
No.
(responding
station)
Sub
command
Command
Error information