F48_DBSUB2

Redundant instruction

NOTE

This is a redundant instruction. It is replaced by: FP_SUB_BCD

Subtracts the 8-digit BCD equivalent constant or 8-digit BCD data specified by s2 from the 8-digit BCD equivalent constant or 8-digit BCD data specified by s1 if the trigger EN is in the ON-state. The result is stored in d.

Parameters

Input

s1 (DWORD): Minuend, 32-bit area for 8-digit BCD data or equivalent constant
s2 (DWORD): Subtrahend, 32-bit area for 8-digit BCD data or equivalent constant

Output

d (DWORD): Result, 32-bit area for 8-digit BCD data

Example

(1) Example value 16#33555588 (BCD)
(2) Example value 16#00110022 (BCD)
(3) Result value 16#33445566 (BCD)
(4) 32-bit area
(5) Trigger: ON

Error flags

sys_bIsEqual (turns to TRUE for one scan): if the calculated result is 0.
sys_bIsCarry (turns to TRUE for one scan): if the result exceeds the range of 8-digit BCD data (overflow).