IVC1 series PLC features small sizes and high performance in automation control. It has a built-in microprocessor, core computing control system, as well as input points, output points, expansion module buses, etc; this series also includes I/O extension module and special module; the main module has two communication interfaces; the main module I/O also has high-speed counting and high-speed pulse output channel to achieve precision positioning; it has a wealth of built-in programming resources and three standard programming languages, and supports debugging monitoring via Auto Station programming software; it also has an effective user program safety protection.


IVC1 series PLC is a mini high-performance PLC with small structure and powerful functions. It can be widely used in the mechanical manufacture industries such as textile fiber, machine tools, cables, foods and drinks, packages, plastics and steels, buildings, air conditioners, elevators and printing.

Small size, high configuration, high-capacity and fast speed
Strong positioning and high-speed processing capability
Strong communication
Powerful programmable software


Basic Technical features of IVC1 series PLC

Item Features
I/O configuration Max. I/O point number 128
Extension module number 7 (the sum of I/O extension module and special function module ≤7)
Program Memory User program capacity 12k words
Data block size 4000 D elements
Instruction Speed Basic instruction 0.3μs/ instruction
Application instruction Several μs ~ Several hundred μs/instruction
Element I/O relay 128 I / 128 O (Input X0 ~ X177, output Y0 ~ Y177 )
Auxiliary relay 2048 points (M0 ~ M2047 )T
Local auxiliary relay 64 points (LM0 ~ LM63 )
Special auxiliary relay 256 points (SM0 ~ SM255 )
Status relay 1024 points (S0 ~ S1023 )
Timer 256 points (T0 ~ T255 ) T0 ~ T209: 100ms;
T210 ~ T251: 10ms;
T252 ~ T255: 1ms
Counter 256 points(C0~C255) 16 bit common up counter:
(C0 ~ C199 )
32 bit common down counter:
(C200 ~ C235 )
32 bit high-speed counter:
(C236 ~ C255 )
Data register 8000 points (D0 ~ D7999 )
Local data register 64 points (V0 ~ V63 )
Indexed addressing register 16 points (Z0 ~ Z15 )
Special data register 256 points (SD0 ~ SD255 )
Interrupt Source External interrupt input 16 (the interrupt is triggered by the rising & falling edges of ports X0~X7, which can be set by users)
High-speed counter interrupt 6
Inner timming interrupt 3
Communication interrupt 8
High-speed output complete interrupt 2
Power failure interrupt 1
Communication Communication port 2 asynchronous serial communication ports PORT0: RS232 PORT1: RS232 or RS485
Communication protocol Programming protocol, MODBUS protocol, free-port protocol, N:N (INVT protocol), capable of networking as 1: N or N: N
Special Function High speed counter X0、X1 Single input: 50kHz
X2~X5 Single input: 10kHz
X0 ~ X5 simultaneously input: total frequency 60kHz
Pulse output Y0、Y1 100kHz two independent outputs (applicable to only transistor output)
Input filtering X0 ~ X7 provide digital filtering, other ports use hardware filtering
Variable analog potentiometer[1] 2
Subprogram call At most 64 subprograms and 6-level subprogram nesting can be used. Support local variables and variable-alias, and every subprogram provides 16 parameters to be called at most
User program Uploading password Three password
protection Downloading password authorities. Combination of characters and numbers, each not longer than 8 characters. Case sensitive
Monitor password
Other protection Protection functions include formatting ban, uploading ban, and subprogram password protection
Programming mode[2] Control Star programming tool[3] To be installed in computers
Real time clock Built in, capable of running 100h after a power failure (precondition: the basic module has worked for at least 2 minutes before the power failure)
1. The analog potentiometer provides users an method for setting inner element, which is within 0~255 and read by user program. To adjust the setting, you can use a small Philips screwdriver to rotate the potentiometer clockwise to raise the setting. The maximum rotation angle is 270°.
2. Provide register forced function, convenient for debugging and analyzing the user program, improving debugging efficiency. Supportive of forcing 128 bit-registers and 16 word-registers at the same time.
3. supportive of online user program modification