Reading The Data Send/Receive Status - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

20.7

Reading the Data Send/Receive Status

G(P).SPBUSY
RnPCPU
RnCPU RnENCPU
(Process)
These instructions read the send/receive status of data using the instruction.
Ladder
(U)
FBD/LD
EN ENO
U d
■Execution condition
Instruction
G.SPBUSY
GP.SPBUSY
Setting data
■Description, range, data type
Operand Description
(U) Start I/O number (first three digits in four-digit hexadecimal
representation) of a module
(d) Start device for storing the read communication status
EN Execution condition
ENO Execution result
■Applicable devices
Operand Bit
X, Y, M, L,
SM, F, B, SB,
FX, FY
*1

(U)

(d)
*1 Index modification is not available.
*2 FD cannot be used.
20 SERIAL COMMUNICATION INSTRUCTIONS
1694
20.7 Reading the Data Send/Receive Status
RnPCPU RnSFCPU RnSFCPU
(Redundant) (Standard) (Safety)
(d)
Execution condition
Word
J\ T, ST, C, D, W,
SD, SW, FD, R,
ZR, RD
 
*2
 
ST
ENO:=G_SPBUSY(EN,U,d);
ENO:=GP_SPBUSY(EN,U,d);
Range
00H to FEH



Double word
U\G, J\, Z LT, LST,
U3E\(H)G LC
  
  
Data type Data type (label)
16-bit unsigned binary ANY16
Device name ANY16
Bit BOOL
Bit BOOL
Indirect Constant
specification
LZ K, H E
   
   
Others
(U)
$
 
 