Mitsubishi FX3U Series Programming Manual page 434

FX /FX Series Programmable Controllers
3U 3UC
Programming Manual - Basic & Applied Instruction Edition
2. 32-bit operation (DTO and DTOP)
PLC (word device) → Special extension unit/block (BFM)
"n"-point 32-bit data starting from [
memories starting from the buffer memory (BFM) # [m2+1, m2] inside a special extension unit/block No. m1.
Command
input
FNC 79
Related devices
Device
M8028 Enable interrupt flag
Cautions
1. Digit specification in bit device
For the 16-bit operation instruction, specify K1 to K4. For the 32-bit operation instruction, specify K1 to K8.
Program examples
In programs, the contents of data registers (D), extension registers (R), auxiliary relays (M) with digit
specification, or constants (K, H) are written (transferred) to buffer memories in a special extension unit/block
using an applied instruction such as TO, MOV and BMOV.
Example: When writing "H0" to the BFM #27 (command) in the CC-Link/LT master unit (whose unit number is
fixed to "0") built in the FX
- In case of TO instruction
- In case of MOV instruction
432
S
m1 m2
DTO
Name
Disables or enables interrupts while FROM/TO instruction is executed.
→ For the details, refer to "Acceptance of interrupt while FROM/TO instruction
OFF: Disables interrupts.
ON:
3UC
M1
FNC 79
K0
TOP
Unit
No. 0
M1
FNC 12
H0
MOVP
Transfer
source
data
15.10 FNC 79 – TO / Write To A Special Function Block
, +1] inside a PLC are transferred (written) to "n"-point buffer
S
S n
Number of transfer points
n = 1 to 16383
Transfer destination
Transfer source BFM #
m2 = 0 to 32765
Unit No.
m1 = 0 to 7
(Interrupts are executed after FROM/TO instruction is executed.)
Enables interrupts.
S
-32MT-LT
K27 H0 K1
BFM #27 Transfer Transfer
source destination
data
U0\G27
Unit No. 0
BFM #27
15 External FX I/O Device – FNC 70 to FNC 79
Description
is executed (M8028)" in Subsection 15.9.1.