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31 Applied Instructions (Data Transfer 3)
31.1 RBFM / Divided BFM Read
734
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
2) When X001 is set to ON, the buffer memories (BFM) #2001 to #2080 (80 points) in the special function
block and unit whose unit number is No. 2 are written to D200 to D279 by 16 points in each operation
cycle.
The BFM read start
flag is set to ON.
[Structured ladder/FBD]
SET(LDP(TRUE,X001),M5);
RBFM(M5,K2,K2001,K80,K16,D200);
RST(M5 AND M8029,M5);
Y001:=M5 AND M8328;
RST(M5 AND M8329,M5);
[ST]
The buffer memories #2001 to #2080 (80 points) in the unit
No. 2 are read to D200 to D279 (in 5 operation cycles).
BFM read
start
Instruction execution
complete
Instruction execution
abnormally complete
The BFM read start flag is set to OFF.
Execution of the RBFM
instruction is waited.
The BFM read start flag is set to OFF.
Y001
Instruction
non-execution
LDP
EN
s
ENO
X001
SET
EN ENO
d
M5
M5
RBFM
EN ENO
m1
m2
n1
n2
K2
K2001
K80
K16
RST
EN ENO
d
M5
M8029
M8328
RST
EN ENO
d
M5
M8329
d
D200
BFM read start