Chapter 5. Power Supply / CPU
5-
9
3) Pulse Timer Process Time Change and Contact On/Off
If input condition turns on, output contact (Q) turns on.
The process time is newly changed when the timer function block is executed. When the process time reaches the
setting time (process time = setting time), the contact (Q) turns off.
The contact turns off after the setting time regardless of input condition off status.
The following diagram shows pulse timer timing.
4) Timer Error
The maximum timer error is ‘1 scan time + time from the start of scan to execution of the timer function block’
5.3.6 Counter processing
The CPU part counter increase/decrease the present counting value by the detection of rising edge (Off
→
On) of input
signal. Three types of counter are increment counter, Decrement counter and Increment/Decrement Counter. For details,
refer to GLOFA — GM Programming’.
• The Increment counter is a counter which increment the present counting value
• The Decrement counter is a counter which decrement the present counting value
• The Increment-Decrement counter is a counter, which compares the counting values of two input conditions.
1) Counter Present Value Change and Contact On/Off
(1) Increment Counter
•
It should have Input condition (CU), reset condition (R) and setting value (PV).
t0+PT
t0
t1
t2
t3
t4
t5
t0
t1
t2
t2
t5
IN
Q
PT
ET
t2+PT
t4+PT
t4
t4
t0
Reset input
Up count output
Current value
Preset value
Up count pulse input
Summary of Contents for GLOFA G7M-DR20U
Page 28: ...Chapter 4 Names of Parts 4 3 2 G7M DRT60U N 3 G7M DT60U N 4 G7M DT60U P...
Page 29: ...Chapter 4 Names of Parts 4 4 5 G7M DR60U DC 6 G7M DRT60U N DC 7 G7M DT60U N DC...
Page 31: ...Chapter 4 Names of Parts 4 6 3 G7M DT40U N 4 G7M DT40U P 5 G7M DR40U DC...
Page 32: ...Chapter 4 Names of Parts 4 7 6 G7M DRT40U N DC 7 G7M DT40U N DC 8 G7M DT40U P DC...
Page 33: ...Chapter 4 Names of Parts 4 8 4 1 3 30 point main unit 1 G7M DR30U 2 G7M DRT30U N 3 G7M DT30U N...
Page 34: ...Chapter 4 Names of Parts 4 9 4 G7M DT30U P 5 G7M DR30U DC 6 G7M DRT30U N DC...
Page 36: ...Chapter 4 Names of Parts 4 11 2 G7M DRT20U N 3 G7M DT20U N 4 G7M DT20U P...
Page 37: ...Chapter 4 Names of Parts 4 12 5 G7M DR20U DC 6 G7M DRT20U N DC 7 G7M DT20U N DC...
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Page 159: ...Chapter 7 Usage of Various Functions 7 52 c Program...
Page 183: ...Chapter 7 Usage of Various Functions 7 76 c Program...
Page 253: ...Chapter 8 Communication Functions 8 27 b When uses Ch 1 Built in RS 485...
Page 356: ...Appendix 1 System Definitions App1 9 6 Position Parameter...
Page 357: ...Appendix 1 System Definitions App1 10 7 High Speed Counter Parameter...