Serial Port Controller with 40 Channels Relay Output and 2 Channels Analog Quantity Output (JMDM-COM40MR2DA)

JMDM-COM40MR2DA
40 channels relay output, 2 channels analog quantity output serial port controller

Introduction
JMDM-COM40MR2DA serial port control relay board is shenzhen jingmin digital machine Co., Ltd., independent research and development of industrial controller with high reliability, can be used for serial port control multiple relay output, support two working modes:
1. Real-time mode: Through computer serial port online send control command (can be ASCII or string) to the controller, on the computer PC software of real-time control relay output;
2. Program mode: Through computer serial port download control program to the controller, the controller save program, and according to the procedures and time independent control relay output.
In all kinds of civil, industrial, with very extensive application value, with strong electromagnetic interference resistance, lightning protection, the characteristics of stable and reliable, can be applied to all kinds of poor environment conditions of industrial and civil occasions, such as use to control lighting, switch, all kinds of sand table model, construction, bridges, and model control, etc.
Performance parameter
1) Working power supply:
JMDM-COM40MR: AC 9/18V or DC 12/24V;
2)Main control chip: 8 bits high-performance single chip microcomputer with high-speed high stable FPGA programmable array circuit;
3)Program and data memory: 32k program memory, used to store data, 30k data memory can also be used to save the data, the data will not lost after power failure.
4)Output:
JMDM-COM40MR: 40 channel photoelectric isolated relay output, the output voltage is 0 ~ 220V, the maximum output current is 5A, output status can be read back;
2 channels analog output.
5)System stability: Adopt photoelectric isolation and enable internal watchdog and strict high frequency filter characteristics, make the system stable and reliable work, crash since the start time within 1ms;
6)Interface: 1 channel standard RS232 serial communication interface (15kv static shock resistance), can be directly communicate with computer or text display peripherals; Can download the program directly by RS232 interface, without CD-R machine, convenient program modification and upgrade;
7)Working status indicators: 1 LED light. Commonly used to display controller running state;
Product feature
1. JMDM-RS232 serial port controller used for relay opening and closing.
2. Upper machine (PC or PLC) via serial port connect to the controller, the controller sends a string of ASCII code instructions can control some (or all) of the relay is open or closed, completely unnecessary to consider the hardware circuit of relay selection, driver, etc.
For example, serial port input O(002, 1) the No. 2 relay electric suction; Serial port input 0(012, 0), then No. 12 relay electrical disconnect.
3. Serial port controller and the control main machine distance may be extended by 485 bus, the longest networking can achieve 1km;
4. A single serial port controller can be independently controlled 40 channels relay (or transistor) open and close. Through the address code, in the case of a delay of 1 second license, a serial port can be addressed and control maximum 100 pieces of serial port controller, constitute a big system by 4000 output points.
5. Can provide serial port communication protocol and communications VB source program, giving the VB through RS232 serial port controller operation demonstration program or special program to develop.
6. The controller with four toggle switches, can be set from (0-16) address of the controller, also can use software programming setting controller address and the purpose of the toggle switch.
7. Controller with the system clock, can use the timing control relay on and off.
8. The relay controller is equipped with industrial control level of the shell, beautiful and easy, convenient installation.