FM161D-SOE HollySys input module, FM161D-SOE1 module is an intelligent 16-channel contact-type SOE signal input module. Shanghai Sijian Intelligent Technology Co., Ltd. is engaged in technology development, technical consultation, 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, CT
By connecting with the matching base FM131A, it is specifically used to process SOE input signals from the field, with a contact query voltage of 24VDC. The FM161D-SOE module, as a ProfiBus-DP slave station, uploads the collected signals and related diagnostic information to the ProfiBus-DP master station via the ProfiBus-DP bus.
The FM161D-SOE HollySys input module achieves a resolution of 1ms for SOE signals; it has a sufficiently large buffer to ensure no SOE signal is missed under the premise of guaranteed signal resolution; it also features signal debouncing functionality, capable of distinguishing abnormal signal jitter, ensuring the reliability of sampled signals.
1.2 Composition  The FM161D-SOE module consists of a 16-channel contact-type SOE input template (FB161-B series), an I/O module SOE-specific intelligent processing board (FB111A series), and housing structural components. During use, the FM161D-SOE module needs to be connected to the terminal base FM131 to form a complete 16-channel SOE digital sampling unit. Its appearance: sixteen-channel 24V contact-type SOE input module FM161D-SOE  A paper card can be inserted into the front label clip of the module, on which the names or identifiers of channels 1 to 16 measurement points can be written, facilitating engineering use and maintenance.
1.3 Features and Functions  The FM161D-SOE module is small in size, light in weight, and flexible in installation.  The FM161D-SOE module supports hot-swapping. It can be directly inserted or removed while the system is powered on without affecting the normal operation of the module or the system.  The FM161D-SOE module can diagnose jitter in field SOE signals. It has a watchdog timer circuit that allows the module to automatically reset in abnormal conditions.  The FM161D-SOE module provides overvoltage protection, DC24V reverse protection, and communication line clamp voltage protection. The FM161D-SOE module can collect 16-channel contact-type common ground SOE signals. The FM161D-SOE module has a large data acquisition buffer.  2 Principle Description  The FM161D-SOE module is a 16-channel contact-type SOE input module. It adopts an intelligent modular structure, with a working power supply of 24VDC, and a field contact-type SOE query voltage of 24VDC. The query power is provided by a separate power supply. Typically, the query power is transferred to the module via terminals within the cabinet. Field signals are isolated and conditioned before being processed by the intelligent processing unit within the module.