Mitsubishi Electric MELSEC FX Series - Page 629

7 Applied Instructions
7.19 Block Data Operation
627
FXCPU Structured Programming Manual
(Basic & Applied Instruction)
1
Outline
2
Instruction List
3
Configuration of Instruction
4
How to Read Explanation of Instructions
5
Basic Instruction
6
Step Ladder Instructions
7
Applied Instructions
8
Interrupt Function and Pulse Catch Function
A
Relationships between devices and addresses
Related device
Cautions
1) When handling 32-bit data in a structured program, a 16-bit device cannot be specified directly as in the
case of a simple project. Use a label to handle 32-bit data.
A 32-bit counter can be specified directly as it is a 32-bit long device.
Use a global label to specify a device.
2) The FX
3UC PLC of V. 2.20 or later supports this instruction.
3) When using 32-bit counters (high speed counters)
For comparing 32-bit counters (C200 to C255), be sure to use an instruction for 32-bit operation (such as
DBKCMP= and DBKCMP>).
If an instruction for 16-bit operation (such as BKCMP= and BKCMP>) is used, an operation error is
caused (error code: K6705)
4) Some restrictions to applicable devices
S: D
.b cannot be indexed (v, z).
Error
An operation error is caused in the following cases. The error flag M8067 turns ON, and the error code is
stored in D8067.
1) When "n" ("2n" in 32-bit operation) devices starting from the devices specified by , and/or )
exceed the corresponding device range (error code: K6706).
2) When data registers starting from the device specified by specified as "D
.b" overlap "n" ("2n" in
32-bit operation) points starting from the device specified by (error code: K6706).
3) When data registers starting from the device specified by specified as "D
.b" overlap "n" ("2n" in
32-bit operation) points starting from the device specified by (error code: K6706).
4) When a 32-bit counter (C200 to C255) is specified in the devices specified by and/or in 16-bit
operation (error code: K6705).
For comparing 32-bit counters, be sure to use an instruction for 32-bit operation (such as DBKCMP=,
DBKCMP> and DBKCMP<).
Device Name Description
M8090 Block comparison signal
Turns ON when all comparison results are "ON (1)" in a block data instruction.
DBKCMP=, DBKCMP>, DBKCMP<, DBKCMP<>, DBKCMP<=, DBKCMP>=