Chapter 14 PLC Function |C200 Series
14-22
1. Auxiliary relay for general
:
It will reset to Off when power loss during running. Its
state will be Off when power on after power loss.
2. Auxiliary relay for special
: Each special auxiliary relay has its special function.
Please don’t use undefined auxiliary relay.
The Function of Timer
The unit of timer is 1ms, 10ms and 100ms. The count method is count up. The output coil will be On
when the present value of timer equals to the settings. The setting is K in decimal number. Data
register D can be also used as settings.
• The real setting time of timer = unit of timer * settings
The Features and Functions of Counter
Item 16-bit counters 32-bit counters
Type General General High speed
Count direction Count up Count up/down
Settings 0~32,767 -2,147,483,648~+2,147,483,647
Designate for
constant
Constant K or data register D Constant K or data register D (2 for designated)
Present value
change
Counter will stop when attaining
settings
Counter will keep on counting when attaining
settings
Output contact
When count attains the settings
value, contact will be On and
latched.
When count up attains settings, contact will be
On and latched.
When count down attains settings, contact will
reset to Off.
Reset action
The present value will reset to 0 when RST command is executed and contact will
reset to Off.
Present register 16-bit 32-bit
Contact action After scanning, act together.
After scanning, act together.
Act immediately when count attains. It has no
relation with scan period.
Functions:
When pulse input signal of counter is from Off to On, the present value of counter equals to settings
and output coil is On. Settings are decimal system and data register D can also be used as settings.
16-bit counters C0~C79:
; Setting range of 16-bit counter is K0~K32, 767. (K0 is the same as K1. output contact will be
On immediately at the first count.
; General counter will be clear when PLC is power loss. If counter is latched, it will remember the
value before power loss and keep on counting when power on after power loss.
; If using MOV command, WPLSoft to send a value, which is large than setting to C0, register, at
the next time that X1 is from Off to On, C0 counter contact will be On and present value will be
set to the same as settings.
; The setting of counter can use constant K or register D (not includes special data register
D1000~D1044) to be indirect setting.
; If using constant K to be setting, it can only be positive number but if setting is data register D, it
can be positive/negative number. The next number that counter counts up from 32,767 is
-32,768.
Call 1(800)985-6929 for Sales
Call 1(800)985-6929 for Sales
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