Delta Electronics Programmable Logic Controller DVP-PLC - Manual (Page 586)

10 Application Instructions API 200-249
DVP-PLC Application Manual 10-12
API Mnemonic Operands Function
240~
246
D OR ※ OR Compare
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
* * * * * * * * * * *
OR*: 5 steps
DOR*: 9 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
: Data source device 1 S
2
: Data source device 2
Explanations:
1. See the specifications of each model for the range of operands.
2. This instruction compares the content in S
1
and S
2
. Take API240 (OR=) for example, if the result is “=”, the
continuity of the instruction is enabled. If the result is “≠”, the continuity of the instruction is disabled.
3. OR ※ ( ※: =, >, <, <>, ≤, ≥ ) is an comparison instruction used on parallel contacts.
API No.
16 -bit
instruction
32 -bit
instruction
Continuity
condition
No-continuity
condition
240 OR＝ D OR＝ S
1
＝S
2
S
1
≠S
2
241 OR＞ D OR＞ S
1
＞S
2
S
1
≦S
2
242 OR＜ D OR＜ S
1
＜S
2
S
1
≧S
2
244 OR＜＞
D
OR＜＞
S
1
≠S
2
S
1
＝S
2
245 OR＜＝ D OR＜＝ S
1
≦S
2
S
1
＞S
2
246 OR＞＝ D OR＞＝ S
1
≧S
2
S
1
＜S
2
4. When 32-bit counters (C200 ~ C255) are used in this instruction for comparison, make sure to adopt 32-bit
instruction (DOR ※ ). If 16-bit instructions (OR ※ ) is adopted, a “program error” will occur and the ERROR
indicator on the MPU panel will flash.
Program Example:
1. When X1 = On and the present value of C10 = K200, Y0 = On.
2. M60 will be On when X2 = On, M30 = On and the content in 32-bit register D100 (D101) ≥ K100,000.
OR= K200 C10
DOR> D100 K100000
Y0
X2
X1
M30
M60
=