Delta DVP-10PM, Applications Manual

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5
Categories and Use of Basic Application Instructions
DVP-PM Application Manual 5-129
API Mnemonic Operands Function
224~
230
D
LD
※
Contact Type Comparison
Controllers
20PM 10PM
Bit Devices Word Devices Program Steps
Type
OP
X Y M S K H KnX KnY KnM KnS T C D V Z
S
1
* * * * * * * * * * *
S
2
* * * * * * * * * * *
LD
※
: 5 steps
DLD
※
: 7 steps
Operands:
S
1
: Source device 1
S
2
: Source device 2
Explanations:
1. This instruction compares the content in
S
1
and
S
2
. Take API224 (LD=) for example, if the result is “=”, the
continuity of the instruction is enabled. If the result is “ ≠ ”, the continuity of the instruction is disabled.
2.
※
: =, >, <, <>,
≦
,
≧
3. LD
※
(
※
:
=, >, <, <>, ≤ , ≥ ) instruction is used for direct connection with left hand bus bar
API No.
16 -bit
instruction
32 -bit
instruction
Continuity
condition
Discontinuity
condition
224
LD
＝
D
LD
＝
S
1
＝
S
2
S
1
≠
S
2
225
LD
＞
D
LD
＞
S
1
＞
S
2
S
1
≦
S
2
226
LD
＜
D
LD
＜
S
1
＜
S
2
S
1
≧
S
2
228
LD
＜＞
D
LD
＜＞
S
1
≠
S
2
S
1
＝
S
2
229
LD
＜＝
D
LD
＜＝
S
1
≦
S
2
S
1
＞
S
2
230
LD
＞＝
D
LD
＞＝
S
1
≧
S
2
S
1
＜
S
2
4. When 32-bit counters (C200 ~ C255) are used in this instruction, make sure to adopt 32-bit instruction (DLD
※
).
If 16-bit instruction (LD
※
) is adopted, a “program error” will occur and the ERROR indicator on the panel of
DVP-PM will flash.
Program Example:
1. When the content in C10 = K200, Y10 = ON.
2. When the content in D200 > K-30 and X1 = ON, Y11 = ON and latched.
3. When the content in C200 < K678,493 or M3 = ON, M50 will be ON.
LD=
K200 C10
DLD>
K678493 C200
M3
Y10
LD>
D200 K-30
X1
SET Y11
M50