Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual KnX KnY KnM KnS TSUB, Tsubp 7 steps

DVP - ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming

API

163

Mnemonic Operands Function Controllers

TSUB	P	Time subtraction	ES2/EX2	SS2	SA2 SX2
					SE

Type

Bit Devices

Word devices

Program Steps

OP

X

Y

M

S

K

H

KnX

KnY

KnM

KnS

T

C

D

E

F

TSUB, TSUBP: 7 steps

S1

*

*

*

S2

*

*

*

D

*

*

*

PULSE

16-bit

32-bit

ES2/EX2

SS2

SA2

SX2

ES2/EX2

SS2

SA2

SX2

ES2/EX2

SS2

SA2

SX2

SE

SE

SE

Operands:

S1: Time minuend (occupies 3 consecutive devices)

S2: Time subtrahend (occupies 3

consecutive devices) D: Subtraction result (occupies 3 consecutive devices)

Explanations:

1.TSUB instruction subtracts the time value (Hour, Minute Second) S1 with the time value (Hour, Minute Second) S2 and stores the result in D.

2.If operand S1, S2 exceed the available range, operation error occurs and M1067 = ON, M1068 = ON. D1067 stores the error code 0E1A (HEX).

3.If the subtraction result is a negative value (less than 0), Borrow flag M1020 = ON and the value in D will be the result of “the negative value pluses 24 hours”.

4.If the subtraction result (remainder) equals 0 (00:00:00), Zero flag M1020 will be ON.

5.Besides using TRD instruction, MOV instruction can also be used to move the RTC value to D1315 (Hour), D1314 (Minute), D1313 (Second) for reading the current time of RTC..

Program Example:

When X0 = ON, TSUB instruction executes and the time value in D0~D2 is subtracted by the time value in D10~D12. The subtraction result is stored in D20~D22.

X0		TSUB		D0	D10	D20
D0	20(Hour)		D10	14(Hour)	D20	05(Hour)
D1	20(Min)		D11	30(Min)	D21	49(Min)
D2	05(Sec)		D12	08(Sec)	D22	57(Sec)

20:20:05 14:30:08 05:49:57

If the subtraction result is a negative value (less than 0), Borrow flag M1021 = ON.

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