Delta Electronics Programmable Logic Controller DVP-PLC - Manual (Page 42)

2 Functions of Devices in DVP-PLC
DVP-PLC Application Manual
2-14
T 250
Y0
X0
T MR T 250 K100
X0
T 2
Y0
PV
SV K100
T 1+ T2=10sec
T 250
T 1
When X0 = On, The PV in timer T250 will count up
by 100ms. When the PV = SV K100, the output coil
T0 will be On.
When X0 = Off or the power is off, timer T250 will
temporarily stop the timing and the PV remain
unchanged. When X0 is On again, the timing will
resume and the PV will count up and when the PV =
SV K100, the output coil T0 will be On.
3. Subrountine timer:
Timer T192 ~ T199 are used in subrountines or interruption subroutines.
For SA series MPU: The timer executes once when the program reaches END instruction. When END instruction
is executed, the output coil will be On when the timing reaches its target.
For EH/EH2/SV series MPU: The timer executes once when the program reaches TMR or END instruction. When
TMR or END instruction is executed, the output coil will be On when the PV equals SV.
If the general purpose timer is used in a subroutine or interruption subroutine but the subroutine is not being
executed, the timer will not be able to time correctly.
How to designate SV: The actual set time in the timer = timing unit × set value
a) Designating constant K: SV is a constant K
b) Indirectly designating D: SV is data register D
2.7 Numbering and Functions of Counters [C]
No. of counters (in decimal)
ES/EX/SS series MPU:
16-bit counting up, for
general purpose
C0 ~ C111, 112 points. Fixed to be non-latched.
Counter C
16-bit counting up, for
latched
C112 ~ C127, 16 points. Fixed to be latched.
1-phase 1 input
C235 ~ C238, C241, C242, C244, 7 points. Fixed to be
latched.
1-phase 2 inputs C246, C247, C249, 3 points. Fixed to be latched.
32-bit counting up/down
high-speed counter C
2-phase 2 inputs C251, C252, C254, 3 points. Fixed to be latched.
Total
141 points
SA/SX/SC series MPU:
16-bit counting up, for
general purpose
C0 ~ C95, 96 points. Fixed to be non-latched.
16-bit counting up, for
latched C96 ~ C199, 104 points. Can be modified to be non-latched
by setting up parameters.
32-bit counting
up/down, for general
purpose
C200 ~ C215, 16 points. Fixed to be non-latched.
Counter C
32-bit counting
up/down, for latched C216 ~ C234, 19 points. Can be modified to be non-latched
by setting up parameters.
Total
235 points