5 FNC189 – HCMOV / High-Speed Counter Move

FX3S/FX3G/FX3GC/FX3U/FX3UC Series



24 Others – FNC181 to FNC189



Programming Manual - Basic & Applied Instruction Edition



24.5 FNC189 – HCMOV / High-Speed Counter Move



21

1)



Current value update timing

Hardware counter



When OUT instruction for the counter is executed



Software counter



Every time a pulse is input



By using DHCMOV instruction, the current value can be updated and transferred when it is executed.

2)



23



Effect of DHCMOV instruction



Program EI (FNC 04) and FEND (FNC 06) instructions in the main program. They are necessary to execute an

input interrupt program.

→ For EI (FNC 04) and FEND (FNC 06) instructions, refer to Section 8.5 and Section 8.7.



2)



When programming DHCMOV instruction in the 1st line in an input interrupt program, make sure to use the

pattern program shown below. Make sure to use the command contact M8394. Do not add, change, or delete this

pattern program when writing during RUN. Interrupt programs may not operate normally.

M8394



FNC189

DHCMOV



S



D



n



Pattern program for using the

DHCMOV instruction in an interrupt

program



27

FNC210-FNC219

Data

Operation 3



1)



26

FNC200-FNC209

Character String

Control



When programming DHCMOV instruction in an input interrupt program, the following points should be observed.

For assignment of pointers for input interrupt and inputs, refer to the table shown in 5) below.



25

FNC190-FNC199

Block Data

Operation



Cautions



24

FNC181-FNC189

Others



• When DHCMOV instruction is used just before a comparison instruction (CMP, ZCP or comparison contact

instruction), the latest value of a high-speed counter is used in comparison. The following points must be kept

in mind when using the DHCMOV command.

- When the current value of a high-speed counter is compared using CMP, ZCP or comparison contact

instruction (not using a designated high-speed counter comparison instruction), a hardware counter does

not change into a software counter.

→ For the condition in which a hardware counter is handled as a software counter, refer to Subsection 4.8.9.

- When the number of high-speed software counter comparison instructions is reduced, the total frequency

limitation is decreased.

→ For the limitation in software counters by the total frequency, refer to Subsection 4.8.10.

- When it is necessary to execute comparison and change an output contact (Y) as soon as the current value

of a high-speed counter changes, use a designated high-speed counter comparison instruction (HSCS,

HSCR or HSZ).

- DHCMOV instruction can be used as many times as necessary.



FNC180

Alternate

Instructions



• By using both input interrupt and DHCMOV instruction, the current value of a high-speed counter can be

received at the rising edge or falling edge of an external input (at reception of input interrupt).

→ Refer to the Program example 2.



I



22

FNC170-FNC179

External Device



High-speed counter current value update timing

When a pulse is input to an input terminal for a high-speed counter (C235 to C255), the high-speed counter

executes up-counting or down-counting.

If the current value of a high-speed counter is handled in an applied instruction such as the normal MOV

instruction, the current value is updated at the timing shown in the table below. As a result, it is affected by the

program scan time.



FNC160-FNC169

Real Time Clock

Control



2. High-speed counter current value update timing and the effect of DHCMOV instruction



28

FNC220-FNC249

Data

Comparison



Program to be processed as input

interrupt



FNC 03

IRET



29

FNC250-FNC269

Data Table

Operation



30

FNC270-FNC276

Ex-Device



597



FX3S/FX3G/FX3GC/FX3U/FX3UC Series



24 Others – FNC181 to FNC189



Programming Manual - Basic & Applied Instruction Edition

3)



24.5 FNC189 – HCMOV / High-Speed Counter Move



If two or more DHCMOV instructions are used in one input interrupt program, only the first instruction (just after

the interrupt pointer) is executed when the interrupt is generated.

The rest of the interrupt, including additional DHCMOV instructions, is executed according to normal interrupt

processing.

Do not use M8394 as the command contact for the DHCMOV instructions following the first.

I301



M8394

M8000



FNC189

DHCMOV



S



FNC189

DHCMOV



S



'



D



When the input X003 turns from OFF

to ON (that is, when input interrupt is

accepted):

S → [ D +1, D ]



n



D

'



n'

FNC 03

IRET



4)



When this instruction is executed in

interrupt program:

S ' → [ D ' +1, D ' ]



It is not permitted to use DHCMOV instruction for the same counter in two or more input interrupt programs.



I000 M8394



FNC189

DHCMOV



C236



D0



FNC03

IRET



Same counter



I200



M8394



FNC189

DHCMOV



K0



C236



D2



K1

FNC03

IRET



5)



While input interrupts are disabled by the interrupt disable flags (shown in the table below), DHCMOV instructions

are not executed when they are placed inside a corresponding interrupt.

Interrupt disable flag



Corresponding interrupt pointer



Input number corresponding to interrupt pointer



M8050*1



I000,I001



X000



M8051*1



I100,I101



X001



M8052*1



I200,I201



X002



M8053*1



I300,I301



X003



M8054*1



I400,I401



X004



M8055*1



I500,I501



X005



*1.Cleared when the PLC mode is changed from RUN to STOP.

6)



If an input interrupt is generated while input interrupts are disabled by something other than the interrupt disable

flags M8050 to M8055 (after execution of DI instruction and before execution of EI instruction), DHCMOV

instruction is immediately executed, but execution of the interrupt program is held. The interrupt program will be

executed after EI instruction is executed and interrupts are enabled.



Function change depending on the version

The function of FNC189 instruction changes depending on the version as shown in the table below.

Applicable version

FX3U

Ver. 2.20 or

later



Ver. 2.20 or

later



Item



FX3UC



Target device



Outline of function

Ring counter (D8099 and D8398) can be specified in



S



.



Error

An operation error occurs in the following case; The error flag M8067 turns ON, and the error code is stored in D8067.

• When a device specified in



598



S



or [ D



+1,



D



] is outside the allowable range (error code: K6705)



FX3S/FX3G/FX3GC/FX3U/FX3UC Series



24 Others – FNC181 to FNC189



Programming Manual - Basic & Applied Instruction Edition



24.5 FNC189 – HCMOV / High-Speed Counter Move



21



1. Program example 1

In the program example below, the current value of the high-speed counter C235 is compared in each operation cycle,

and then the output Y000 is set to ON if the current value is "K500" or more (when the current value of C235 is not

cleared).

FNC189

DHCMOV

FNC238

DAND>=



D0



C235

K500



K0*1

Y000



D0



The current value of C235 is

transferred to D1 and D0.

(The current value of C235 is not

cleared.)

In the case of "(D1, D0) ≥ K500",

Y000 is set to ON.



23

FNC180

Alternate

Instructions



END



*1.



K0: The current value of the high-speed counter is not cleared when DHCMOV instruction is executed.

K1: The current value of the high-speed counter is cleared when DHCMOV instruction is executed.



2. Program example 2



FNC 04

EI



25



M8394



FNC189

DHCMOV



C235



D200



K1*2



*2.



When X001 turns from OFF to ON, the

interrupt program from I101 to IRET is

executed.

The current value of C235 is

transferred to D201 and D200.

(The current value of C235 is cleared

to “0”.)



26

FNC200-FNC209

Character String

Control



FNC 03

IRET



FNC190-FNC199

Block Data

Operation



FNC 06

FEND

I101



24

FNC181-FNC189

Others



In the program example shown below, the current value of C235 is transferred to D201 and D200, and the current

value of C235 is cleared when X001 turns from OFF to ON.

0



22

FNC170-FNC179

External Device



M8000



FNC160-FNC169

Real Time Clock

Control



Program examples



K0: The current value of the high-speed counter is not cleared when DHCMOV instruction is executed.

K1: The current value of the high-speed counter is cleared when DHCMOV instruction is executed.



27

FNC210-FNC219

Data

Operation 3



28

FNC220-FNC249

Data

Comparison



29

FNC250-FNC269

Data Table

Operation



30

FNC270-FNC276

Ex-Device



599



FX3S/FX3G/FX3GC/FX3U/FX3UC Series



25 Block Data Operation – FNC190 to FNC199



Programming Manual - Basic & Applied Instruction Edition



25. Block Data Operation – FNC190 to FNC199

FNC190 to FNC199 provide instructions for adding, subtracting and comparing block data.



FNC No.

190



–



–



191



–



–



192



BK+



BK+



S1 S2 D n



Block Data Addition



Section 25.1



193



BK–



BK-



S1 S2 D n



Block Data Subtraction



Section 25.2



194



BKCMP=



BKCMP= S1 S2 D n



Block Data Compare



S1 = S2



Section 25.3



195



BKCMP>



BKCMP> S1 S2 D n



Block Data Compare



S1 > S2



Section 25.3



196



BKCMP<



BKCMP< S1 S2 D n



Block Data Compare



S1 < S2



Section 25.3



197



BKCMP<>



BKCMP<> S1 S2 D n



Block Data Compare



S1 ≠ S2



Section 25.3



198



BKCMP<=



BKCMP<= S1 S2 D n



Block Data Compare



S1 ≤ S2



Section 25.3



199



600



Mnemonic



Symbol



Function



Reference



BKCMP>=



BKCMP>= S1 S2 D n



Block Data Compare



S1 ≥ S2



Section 25.3



FX3S/FX3G/FX3GC/FX3U/FX3UC Series



25 Block Data Operation – FNC190 to FNC199



Programming Manual - Basic & Applied Instruction Edition



21



FNC192 – BK+ / Block Data Addition



FNC160-FNC169

Real Time Clock

Control



25.1



25.1 FNC192 – BK+ / Block Data Addition



Outline



22



This instruction adds binary block data.



FNC 192

P

BK+



D



16-bit Instruction



9 steps



Mnemonic



Operation Condition



BK+

BK+P



32-bit Instruction Mnemonic



Operation Condition



DBK+

17 steps

DBK+P



Continuous

Operation

Pulse (Single)

Operation



Continuous

Operation

Pulse (Single)

Operation



FNC180

Alternate

Instructions



16- or 32-bit binary



24



Description

Head device number storing addition data



S2



Added constant or head device number storing addition data



D



Head device number storing operation result



n



FNC181-FNC189

Others



S1



Number of data



3. Applicable devices

Bit Devices



Word Devices



System User



Digit Specification



System User



X Y M T C S D .b KnX KnY KnM KnS



T



C



D



Others

Special

Unit



R U \G



Index

V



Constant



Z



K



Modify



Real

CharacPointer

Number ter String



H



E



" "



P



S1

S2



26



D



FNC200-FNC209

Character String

Control



n



Explanation of function and operation

1. 16-bit operation (BK+ and BK+P)

Command

input



FNC192

BK+



S1



27



S2



D



"n" 16-bit binary data starting from



S2



n



are added to "n" 16-bit binary data starting from



operation result is stored in "n" points starting from

+0

+1

+2



+(n-2)

+(n-1)



S2



"n"

points



+



+0

+1

+2



+(n-2)

+(n-1)



K-1234

K4000



b15

b0

K4000

K1234

K-1234



+0

+1

+2



"n"

points



+(n-2)

+(n-1)



K5000

K4321



K-1234

K4000



+



S2



K4321



28

"n"

points



K3766

K8321



29



.



D



"n"

points



b15

b0

K5234

K5801

K-3234



+0

+1

+2



+(n-2)

+(n-1)



b15

b0

K5555

K8888

K2321



"n"

points



30



K3087

K8321



FNC270-FNC276

Ex-Device



+(n-2)

+(n-1)



b15

b0

K1234

K4567

K-2000



+0

+1

+2



D



A (16-bit) constant from -32768 to +32767 can be directly specified in S2

S1



, and the



FNC250-FNC269

Data Table

Operation



2)



b15

b0

K1234

K4567

K-2000



S1



.



FNC220-FNC249

Data

Comparison



S1



D



FNC210-FNC219

Data

Operation 3



1)



25

FNC190-FNC199

Block Data

Operation



Operand

Type



23



Data Type



2. Set data

Operand Type



FNC170-FNC179

External Device



1. Instruction format



601