Delta Electronics Programmable Logic Controller DVP-PLC - Manual (Page 513)

9 Application Instructions API 150-199
DVP-PLC Application Manual 9-41
API Mnemonic Operands Function
162 TADD P
Time Addition
Controllers
ES/EX/SS SA/SX/SC EH/SV
Bit Devices Word Devices Program Steps Type
OP X Y M S K H KnX KnY KnM KnS T C D E F
S
1
* * *
S
2
* * *
D * * *
TADD, TADDP: 7 steps
PULSE 16-bit 32-bit
ES EX SS SA SX SC EH SV ES EX SS SA SX SC EH SV ES EX SS SA SX SC EH SV
Operands:
S
1
: Time summand S
2
: Time addend D: Time sum
Explanations:
1. S
1
, S
2
, and D will occupy 3 consecutive devices.
2. See the specifications of each model for their range of use.
3. Flags: M1020 (zero flag); M1022 (carry flag)
4. S
1
+ S
2
= D. The hour, minute, and second of the RTC designated in S
1
plus the hour, minute, and second
designated in S
2
. The result is stored in the hour, minute, and second of the register designated in D.
5. If S
1
and S
2
exceed their ranges, the program will regard this as an operation error and the instruction will not
be executed. M1067 and M1068 will be On and D1067 record the error code 0E1A (hex).
6. If the sum is larger than 24 hours, the carry flag M1022 will be On and the value in D will be the result of “sum
minuses 24 hours”.
7. If the sum equals 0 (00:00:00), the zero flag M1020 will be On.
Program Example:
1. When X10= On, TADD instruction will be executed and the hour, minute and second in RTC designated in D0
~ D2 will plus the hour, minute and second in RTC designated in D10 ~ D12. The sum is stored in the hour,
minute and second of the register designated in D20 ~ D22.
X10
TADD D0 D10 D20
8
20
6
40
6
14
26
50 10
08:10:20 06:40:06 14:50:26
2. If the sum is larger than 24 hours, M1022 will be On.
X10
TADD D0 D10 D20
30
11
30
8
6
38
10 40
18:40:30 11:30:08 06:10:38
18