Omron C200HE User Manual

STC(40)

@STC(40)

When the execution condition is OFF, STC(40) is not executed. When the
execution condition is ON, STC(40) turns ON CY (SR 25504).

Note Refer to Appendix C Error and Arithmetic Flag Operation for a table listing the

instructions that affect CY.

CLC(41)

@CLC(41)

When the execution condition is OFF, CLC(41) is not executed. When the
execution condition is ON, CLC(41) turns OFF CY (SR 25504).

CLEAR CARRY is used to reset (turn OFF) CY (SR 25504) to “0.”

CY is automatically reset to “0” when END(01) is executed at the end of each
cycle.

Note Refer to Appendix C Error and Arithmetic Flag Operation for a table listing the

instructions that affect CY.

Au: Augend word (BCD)

IR, SR, AR, DM, HR, TC, LR, #

Ad: Addend word (BCD)

IR, SR, AR, DM, HR, TC, LR, #

R: Result word

IR, SR, AR, DM, HR, LR

ADD(30)

Au

Ad

R

@ADD(30)

Au

Ad

R

When the execution condition is OFF, ADD(30) is not executed. When the
execution condition is ON, ADD(30) adds the contents of Au, Ad, and CY, and
places the result in R. CY will be set if the result is greater than 9999.

Au + Ad + CY

CY

R

Au and/or Ad is not BCD.

Indirectly addressed DM word is non-existent. (Content of 

DM word is

not BCD, or the DM area boundary has been exceeded.)

CY: 

ON when there is a carry in the result.

EQ:

ON when the result is 0.