Modular controller МС200+

МС200+ processing module carries out the following tasks:

• acquisition and processing of input data gained from discrete input modules according to the user's algorithm, control of input modules output lines state;
• transfer of data on actual equipment state and receipt of remote/local control commands via communication interfaces (RS-485, Ethernet, CAN);
• continuous monitoring of extension modules operation (available connection, power supply, overheating, load failure, emergency operation mode etc.) as well as transfer of these data into the upper level system;
• receipt of real-time synchronization commands;
• implementation of industrial network protocols stack. Modbus TCP/IP, FTP (client/server), SNTP (time synchronization), HTTP (Web Server) are for Ethernet channel, Modbus RTU Master/Slave are for RS-485 channel;
• integration of various devices into the system and development of devices with HMI for prompt equipment control due to the standard communication interfaces;
• providing +5 V power supply for expansion modules controller part;
• control of up to 15 I/O modules (360 digital signals) operation. Admissible number of modules can be extended up to 30 units (720 discrete signals) due to application of external power supply;
• prompt updating of application software without application of additional software and hardware. Update of software is carried out due to removable USB flash drive.

Controller has non-volatile memory for user's configuration data storage.

Extension modules are functional devices, capable of performing various types of signals (discrete, analog etc.) primary processing, and therefore reducing computational load onto master processing module. Extension modules are installed onto a DIN rail. Various versions allow using them both in direct proximity to the master controller, and remotely. Control interface can be either CAN, or RS-485 with a standard (open) protocol. Hot connection to the control busbar is also acceptable.

Modules have two operating modes: with default settings and with user settings. Parameters of user's configuration are set via control interface and are stored in the non-volatile memory.

All modules of discrete input/output signals have grouped galvanic isolation. LED indicators, that display actual lines state and modules operation modes, are installed on the front panel. Connection of wires to the modules doesn't require special-purpose tools and is implemented on the basis of connections pressure system. External slots for connection of discrete signals have control points for monitoring of voltage levels at the lines.

During operation modules carry out continuous monitoring of:

• connection with master controller;
• power supply voltage in +24 V circuit;
• correct operation of internal communication channels;
• reduction of power supply voltage to the level that is less than +18 V (PLC-DI-24);
• temperature conditions of input circuits operation (PLC-DI-24);
• load failure and overload at output lines PLC-DО-24.
  
  

The information is transferred to the upper level controller for processing and decision-making. Inputs module can carry out data transfer upon request, periodically or upon line state changes. Operational mode parameters are configured by user and are stored in the non-volatile memory. Outputs module is able to read out actual state of output lines for monitoring compliance with the specified state.

If there is no connection with external control device, outputs module can switch output lines to the specified state for safe emergency shutdown of devices.