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1 product introduction
M-2001 (16 digital output module based on Modbus) is widely used in metallurgical, chemical, mechanical, fire, construction, electric power, transportation and other industrial industries as a general digital quantity acquisition module. It has 16 switch output channels isolated from the field. It supports the standard Modbus RTU protocol, and has the function of communication timeout detection. It can be used in conjunction with other devices that follow the Modbus RTU protocol.
1.1 system overview
The M-2001 module is mainly composed of power supply circuit, isolating switch quantity circuit, isolated RS485 transceiver circuit and MCU. The module uses high speed ARM processor as control unit, and has isolated RS485 communication interface. It has the function of ESD, overvoltage and over current protection. It avoids the influence of the industrial field signal on the module communication interface and makes the communication stable and reliable.
1.2 main technical indicators
1) system parameters
Power supply voltage: 5 ~ 40VDC, power supply back protection
Power consumption: 0.8W
Working temperature: -10 C ~ 60 C
Storage temperature: -40 C ~ 85 C
Relative humidity: 5% to 95% non condensation
2) digital output parameters
Number of road output: 16
Output type: optocoupler isolation transistor collector open output
Isolation voltage: 2500VDC
Maximum load voltage: 30VDC
Maximum load current: 0.5A
Transistor leakage current at cut-off time: <20uA
Transistor saturation voltage at the time of conduction: 1V@100mA
Maximum loss of output transistors: <150mW
3) communication interface
Communication interface: RS485 interface, isolation 1500VDC, + 15kV ESD protection, overcurrent protection
Isolation voltage: 1500V
Communication protocol: Modbus RTU protocol
Baud rate: 1.2k, 2.4k, 4.8k, 9.6K, 19.2k, 38.4k, 57.6k
Communication format: 1 starting bits, 8 data bits, no, odd or even parity, 1 or 2 stop bits.
1.3 shape and size
Shell material: ABS engineering plastics
Size: 145mm (long) * 90mm (wide) * 40MM (high)
Installation: Standard DIN35 guide rail installation and screw installation.