Mitsubishi Electric MELSEC iQ-R Series - Reading Receive Data (for Interrupt Programs)

16 ETHERNET INSTRUCTIONS
16.3 Fixed Buffer Communications Instructions
1557
16
Reading receive data (for interrupt programs)
G.BUFRCVS, Z.BUFRCVS
These instructions read receive data from the external device through fixed buffer communications (for interrupt programs).
■Execution condition
Setting data
■Description, range, data type
*1 When specifying setting data by using a label, define an array to secure enough operation area and specify an element of the array
label.
■Applicable devices
*1 FX and FY cannot be used.
*2 FD cannot be used.
Ladder ST
ENO:=G_BUFRCVS(EN,U,s,d);
ENO:=Z_BUFRCVS(EN,U,s,d);
FBD/LD
Instruction Execution condition
G.BUFRCVS
Z.BUFRCVS
Operand Description Range Data type Data type (label)
(U) GP.BUFRCVS Start I/O number (first three digits in four-digit
hexadecimal representation) of own station or own
node
00H to FEH 16-bit unsigned binary ANY16
ZP.BUFRCVS Start I/O number (first three digits in four-digit
hexadecimal representation) of own station or own
node
00H to FEH String ANY16_OR_STRING
_SINGLE
(s) Connection No. 1 to 16 16-bit unsigned binary ANY16
(d) Own station start device for storing the receive data  Device name ANY16
*1
EN Execution condition  Bit BOOL
ENO Execution result  Bit BOOL
Operand Bit Word Double word Indirect
specification
Constant Others
(U)
X, Y, M, L,
SM, F, B,
SB, FX, FY
J\ T, ST, C, D, W,
SD, SW, FD,
R, ZR, RD
U\G, J\,
U3E\(H)G
Z LT, LST,
LC
LZ K, H E $
(U) GP.BUFRCVS         
ZP.BUFRCVS    
(s) 
*1

*2
     
(d) 
*2
     
RnCPU
RnENCPU
RnSFCPU RnSFCPURnPCPURnPCPU
(Standard) (Safety)
(Redundant) (Process)
(U) (s) (d)
EN ENO
dU
s