Mitsubishi Electric MELSEC iQ-R Series, Programming Manual

Page: 1669 / 2110

19 CC-LINK INSTRUCTIONS
19.8 Performing a Message Transmission to a Remote Device Station
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19
19.8
Performing a Message Transmission to a Remote
Device Station
G(P).RDMSG
These instructions read/write parameters from/to the remote device station and read the status of the remote device station.
The instructions can be executed to a remote device station, for example NZ2AW1C2AL, that supports the message
transmission function.
■ Execution condition
Setting data
■ Description, range, data type
*1 For details on the send data and receive data, refer to the following.
 Manuals for the remote device stations that support the message transmission function
*2 When specifying setting data by using a label, define an array to secure enough operation area and specify an element of the array
label.
Ladder ST
ENO:=G_RDMSG(EN,U,s1,s2,d1,d2);
ENO:=GP_RDMSG(EN,U,s1,s2,d1,d2);
FBD/LD
Instruction Execution condition
G.RDMSG
GP.RDMSG
Operand Description Range Data type Data type (label)
(U) Start I/O number (first three digits in four-digit
hexadecimal representation) of a module 00H to FEH 16-bit unsigned binary ANY16
(s1) Start device where control data is stored Refer to the control data. Device name ANY16
*2
(s2)
*1
Start device for storing the message data to be sent

Device name ANY16
*2
(d1)
*1
Start device for storing the message data received

Device name ANY16
(d2) Device that turns on for one scan upon completion of the
instruction
When the instruction completes with an error, (d2)+1
also turns on.

Bit ANYBIT_ARRAY
(Number of elements: 2)
EN Execution condition  Bit BOOL
ENO Execution result

Bit BOOL
RnCPU RnENCPU
RnSFCPU RnSFCPU RnPCPU RnPCPU
(Standard) (Safety) (Redundant) (Process)
(U) (s1) (s2) (d1) (d2)
EN ENO
d1
d2
U
s1
s2