Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 1643

Processing details
• These instructions send the request data in the device specified by (s2) or later to the target station specified with the
control data. When a response message is received from the target station, it is stored in the device specified by (d1).
The following figures show the request data and the response data in normal/abnormal end.
●Request data
Header Subheader Request
destination
network
No.
(s1)+4
Automatically added.
●Response data
(When completed)
Header Subheader Request
destination
network
No.
(When failed)
Header Subheader Request
destination
network
No.
Response data
length
Stored in (s1)+10
• The J(P).SLMPREQ and G(P).SLMPREQ instructions communicate in binary code.
• A serial number is automatically given to the subheader.
Ex.
Sending "Read (command: 0401H)" (read in units of words) which reads the value in D100 to D102
●Request data
... ...
b15 b8b7 b0
(s2)+2 04H 01H
(s2)+3 00H 00H
(s2)+4 00H 64H
(s2)+5 A8H 00H
(s2)+6 00H 03H
Request Request Request
destination destination
destination
station No. multidrop
module I/O No.
station No.
(Not used)
(s1)+5 (s1)+3 00H
(fixed)
Specified by (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)
(d1)+0
Subcommand
Command Head device No.
01H 04H 00H 00H 64H 00H
Request data Monitoring timer Request data
length (Not used)
(s1)+9 0000H (fixed) (s2)+1~(s2)+n
Specified by (s1)
Response data End code
length
Stored in (s1)+10 (d1)+0
Stored in (d1)
Request
Request Command
destination
destination
multidrop
module I/O No.
station No.
(d1)+1~(d1)+n
Stored in (d1)
Device
No. of device
code
points
00H A8H 03H 00H
18 CC-LINK IE FIELD NETWORK INSTRUCTIONS
Footer
Specified by (s2)
Response data Footer
(d1)+1~(d1)+n
Subcommand Footer
18.9 Sending an SLMP Frame
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