Chapter 2 Product Introduction 3
EC20 Series PLC User Manual
Component Name Quantity Serial No. Note
SM Special auxiliary relay 256 SM0~SM255
S State relay 992 S0~ S991
T Timer 256 T0~T255
100ms precision: T0~T209
10ms precision: T210~T251
1ms precision: T252~T255
C Counter 256 C0~C255
16 bit common increasing counter: C0~C199
32 bit common decreasing counter: C200~C235
32 bit high-speed counter: C236~C255
D Data register 8000 D0~D7999
V Local data register 64 V0~V63
Z
Indexed addressing
register
16 Z0~Z15
SD Special data register 256 SD0~SD255
2.5 High-speed Input/Output Function
High-speed port
name
High-speed port type Input/output mode Max. frequency of input/output signal
X0, X1 Input High-speed pulse count
Single input: 50KHz;
X0~X5 input at the same time: frequency sum is 80KHz
X2~X5 Input High-speed pulse count Single input: 10KHz
Y0, Y1 (only suitable
for transistor output)
Output High-speed pulse output Two ports output independently: 100KHz
2.6 Filter Function Of Input Port
Function Description
Digital filter function X0~X17 provide digital filter function, and filter time is within 0~60mS, set by user’s program
Hardware filter function Other X input ports
2.7 Interrupt Source
Provide eight external interrupt inputs, the interrupt edge can be set by users and is corresponding to X0~X7 ports;
six high-speed counter interrupts; three inner timing interrupt sources.
2.8 Subroutine Call
At most 64 subroutines and 6-level subroutine nesting can be used. Support local variables and variable-alias, and
every subroutine can provide 16 parameters to be called at most.
2.9 Reinforced Debugging Function
Provide register-forced function, convenient for debugging and analyzing the user program, improving debugging
efficient. Permit the most 128 bit-registers and 16 word-registers.
2.10 Support Online Modification
Users can modify the program online during operation, which is greatly convenient for modifying and upgrading the
user program in important production situation.
To Next Page
Loading...
Need help?
General
