32.11.1.2 Explanation of the JADD and JADDP Instructions

The JADD and JADDP instructions are time addition instructions. When a JADD instruction is executed, the time variable in operand S1 will be added to the time variable in S2, and the result of the addition is stored in the time variable in operand D1. The JADD and JADDP instructions always pass power.

Time Variable

Time Variable

Variables Settings

Description

VariableName.HR

Integer Variable

Hours are input in BCD.

VariableName.MIN

Integer Variable

Minutes are input in BCD.

VariableName.SEC

Integer Variable

Seconds are input in BCD.

In the JADD instruction, you cannot run time add operations on individual time variable elements (.HR .MIN .SEC).

The time variables and each element thereof are saved as BCD data.