Mitsubishi Electric MELSEC-Q/L - Block 16-Bit Data Transfer

6 BASIC INSTRUCTIONS
6.4 Data Transfer Instructions
307
6
Block 16-bit data transfer
BMOV(P)
When BL, S, TR, BL\S, or BL\TR is used, refer to the SFC control instructions in the MELSEC-Q/L/QnA
Programming Manual (SFC).
Processing details
• Transfers in batch 16-bit data of n points from the device designated by (S) to location n points from the device designated
by (D).
• Transfers can be accomplished even in cases where there is an overlap between the source and destination device. In the
case of transmission to the smaller device number, transmission is from (S); for transmission to the larger device number,
transmission is from (S)+(n-1). However, as shown in the example below, when transferring data from R to ZR, or from ZR
to R, the range to be transferred (source) and the range of destination must not overlap. (QnUDVCPU is excluded.)
Transfer from R to R, or from ZR to ZR can be performed without any problem.
(S): Head number of the devices where the data to be transferred is stored (BIN 16 bits)
(D): Head number of the devices of transfer destination (BIN 16 bits)
n: Number of data to be transferred (BIN 16 bits)
Setting
data
Internal device R, ZR J\ U\G Zn Constant
K, H
Others
Bit Word Bit Word
(S)  
(D)  
n  
• ZR transfer range ((specified head No. of ZR) to (specified head No. of ZR + the number of transfers -1))
• R transfer range ((specified head No. of R + file register block No.  32768) to (specified head No. of R + file register block No.  32768 + the number of
transfers -1))
Basic
Process
High
performance
Redundant Universal LCPU
Command
Command
BMOVP
BMOV
n
n
BMOVP
BMOV
S D
S D
1234
H
5678
H
7FF0
H
6FFF
H
553F
H
+1
+2
+(n-2)
+(n-1)
+1
+2
+(n-2)
+(n-1)
n
1234
H
5678
H
7FF0
H
6FFF
H
553F
H
Block
transfer
B0b15 B0b15
S
D
S
S
S
S
D
D
D
D
n