Delta DVP-10PM, Applications Manual

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5
Categories and Use of Basic Application Instructions
DVP-PM Application Manual 5-75
API Mnemonic Operands Function
66 ALT P Alternate State
Controllers
20PM 10PM
Bit Devices Word devices Program Steps
Type
OP
X Y M S K H KnX KnY KnM KnS T C D E F
D * * *
ALT, ALTP: 3 steps
Operands:
D
: Destination device
Explanations:
1. The status of
D
is alternated every time when the ALT instruction is executed.
2. When ALT instruction is executed, ON/OFF state of
D
will be switched which is usually applied on switching
two operation modes, e.g. Start/Stop
3. This instruction is generally used in pulse execution mode (ALTP).
Program Example 1:
When X0 goes from OFF to ON, Y0 will be ON. When X0 goes from OFF to ON for the second time, Y0 will be OFF.
X0
ALTP Y0
X0
Y0
Program Example 2:
Creating a flashing circuit by applying ALTP with a timer
When X20 = ON, T0 will generate a pulse every two seconds and output Y0 will be switched between ON and OFF
by the pulses from T0.
X20
TMR T0
ALTP Y0
K20
T0
T0