Mitsubishi Electric Q03UDVCPU User Manual page 73

(5) Function
• This instruction sends the request frame in the device specified by
specified by the external device IP address in the control data. When a response message is received from
the external device, it is stored in the device specified by
The following figures show the request data and the response data when the instruction is completed normally or
with an error.
• Request data
Header Subheader Request
destination
network
No.
+3 to +5 +6
S1 S1 S1
Specified by (except some devices)
S1
• Response data
When completed normally
Header Subheader Request
destination
network
No.
When completed with an error
Request
Header Subheader
destination
network
No.
Response data
length
+0
D1
• The SP.SLMPSND instruction communicates using UDP. Set the external device to use UDP.
• The SP.SLMPSND instruction communicates in binary code. Match the setting of the external device also
with the binary code.
Request Request Request
destination destination
destination
station No. multidrop
module I/O No.
station No.
+7 +8 +9
S1 S1 S1
Request Request Request
destination destination
destination
station No. multidrop
module I/O No.
station No.
Request Request
Request
destination destination
destination
station No. multidrop
module I/O No.
station No.
Network No. Station No.
End code
(responding (responding
station) station)
+1
D1
CHAPTER 5 MC PROTOCOL COMMUNICATION
and later to the external device
S2
.
D1
Request data Monitoring timer Request data
length
+0 +1
S2 S2
Specified by
Response data End code
length
D1 +0 D1 +1
Stored in
D1
Request
Request Command
destination
destination
multidrop
module I/O No.
station No.
Error information
Stored in D1
Footer
+2 to +n
S2 S2
S2
Response data Footer
D1 +2 to D1 +n
Subcommand Footer
5
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