DIN Rail Products
Square D Products
DIN Rail Mount Universal Communication Module
Description Niobrara's DUCM is a DIN rail mounted stand-alone version of our popular QUCM.
Uses for the DUCM Data Concentrator
Applications The engineers at Niobrara have written several applications
The source code for these applications is available here. The applications can be used as is or modified to solve your PLC communication
problem or used as examples to start your own DUCM application development.
QUCM Language The DUCM is programmed via Niobrara's QUCM language. The language has a BASIC-like structure which makes it easy to read and follow. Powerful language extensions for data communications and PLC interfacing make it ideal for use as a PLC communication language. A TCP/IP stack is built in, making it easy to write application layer protocols using TCP, UDP, PPP, and IP. The language is compiled for the fastest possible execution. The compiler is included at no extra charge.
Although the DUCM is designed for user programming, many companies choose to have Niobrara write their UCM code. Contact Niobrara for a quote.
Application Areas The DUCM can run a single multi-threaded applications. All threads have access to the serial ports, the LCD display, keypad, the real-time clock, the TCP/IP stack, and the internal registers.
Serial Ports The two serial ports on the DUCM are software selectable RS-232 or RS-485. They RJ45 ports are RS-232 while the removable 5-position terminals are RS-485. They are independently configurable as to baud rate, parity, data bits, and stop bits. Write the protocol of your equipment to:
Several serial protocols have been implemented in various products and are available online:
Ethernet Port The single 100BaseT RJ45 Ethernet port defaults to Modbus/TCP protocol. The DUCM has a TCP/IP stack which the user's application can access for easy implementation of various application layer protocols. Several application layer protocols have been implemented; examples are available online.
LCD / Keypad and Real-Time Clock The DUCM has a front panel display and keypad under Application control.
A real-time clock is available to the applications and is especially useful for scheduling events or time-stamping data.
The DUCM is available as:
The DUCM has the following equipment available:
Warranty / Manual: The DUCM is furnished with a user manual on cd and carries a one year warranty from the date of shipment. During the warranty period, free firmware upgrades are available. See Niobrara's Standard Terms and Conditions of Sale for additional warranty information.
Dimensions: DIN rail mount 4.4" wide by 4.4" tall by 3.5" deep. Approximately 1.2 pounds net.
Power Requirements: 9-30VDC 6W - 3 position removable connector is provided.
Ethernet Port: 10/100BaseT port with RJ45 connector on bottom of unit. Optional second Ethenet port with built-in switch.
Serial Ports: Two isolated ports selectable between RS-232 (RJ45 connector) and RS-485 (5 position removable screw terminal is provided). Independently configurable for baud rate, data bits, parity, stop bits, and protocol. RS-485 mode is 2- and 4-wire compatible. Optional factory installed serial ports with two RS-232 or two RS-485 ports.
Environmental:Operating conditions are 0-50C; humidity up to 90% noncondensing; pressure altitude -200 to +10,000 ft MSL.