SM412, SM522, and HollySys input/output module controllers. Shanghai Sijian Intelligent Technology Co., Ltd. is engaged in technology development, technical consulting, technology transfer, and sales of electrical equipment, automation equipment, electronic products, communication products, and electromechanical products in the fields of intelligent technology, information technology, and automation technology. Industrial automation products: PLC, DCS, sensors, frequency converters, encoders, relays, servo drives, soft starters, touch screens. Brands involved in the products include: Eurotherm, Schneider, Siemens, ABB, SICK, P+F, E+H, Yokogawa, Yamakawa, Mitsubishi, Emerson, Honeywell, FANUC, GE, Eaton Electrical. CTSM412 is an 8-channel voltage analog redundant input module with HART function in the SM series hardware products, completing the acquisition of 0~5V voltage signals. The SM412 module can be connected to the SM3412 current-type (current-limiting) analog redundant input terminal module to achieve the acquisition of field 0~22mA signals with redundant configuration and communicate with field HART instruments.
SM412, SM522, and HollySys input/output module controllers. The SM3412 terminal module converts 8 channels of current signals into voltage signals within the 0~5V range through a 227.3? sampling resistor and sends them to the SM412 module. When field two-wire HART transmitters are externally connected, the SM3412 terminal module has a current-limiting output function, enabled via internal jumpers.
The SM412 module can also be connected to the SM3340 terminal module to achieve the acquisition of field 0~5V voltage signals with redundant configuration.
The SM412 adopts a modular design, with an overall cassette plug-in structure, installed on a cage rail and fixed with clips. The anti-mixing pin on the module backplane is fixed. The SM412 module is an 8-channel analog input module that supports the HART protocol. The SM412 module is used with matching terminal modules via pre-made cables to achieve the acquisition and processing of field analog signals.
Field current signals are connected to the SM3414/SM3413 terminal module, converted into voltage signals through an internal 227.3Ω sampling resistor, and then sent to the SM412 module via pre-made cables; it also supports two-wire and four-wire instruments (selectable via configuration) and can communicate with field HART instruments. When connecting to HART instruments, a two-wire connection method must be used.
The SM412 adopts a modular design, with an overall European-style plug-in structure, cage installation, clip fixation, and supports hot-swapping. The module and cage slot are identified and positioned according to the matching anti-mixing pin, effectively preventing misalignment from causing electrical damage to the hardware.