Model 344 Electronics Module Block Diagram

CIRCUIT DESCRIPTION

UM344-2

			Input Circuitry
			Upscale/	P-Channel
			Upscale/	FET Switch
	RTDI+	104 uA	Downscale	FET Switch	V Burnout
	RTDI+		Downscale
			Burnout
		Source	Burnout
		Source
			Trickle Current
	TC+
RTD	TC				SEL
RTD	TC		52 uA Sink		RTD
	TC-/RTD-				RTD

			CMOS
			Analog
			Switch
			2-Pole Filter	AMP	Input 1

A to D

Converter

Reference
Junction	AMP	Input 2
Temperature	AMP	Input 2
Temperature
Sensor


Control	SCLK	Data
Control

		12-42 Vdc Loop Power Supply Input				Isolated
						Isolated
					Power Supply
				Output Circuitry
							Digital Signal
				Pulse On				Pushbuttons
								Pushbuttons
	SIGNAL+		V to I	Pulse Off		ASIC	Zero
			Converter			D to A	Zero
Loop	SIGNAL-		Converter			Converter
Loop						Converter

		Signal		XMIT (TXA)				Full Scale
Analog		HART				REC		R XD
								R XD
Meter,			2-Pole	Zero Crossing			HART	TXD
Meter,			Active Filter	Detector			Modem
Earlier			Active Filter	Detector		(RXA)	Modem
XTCs
Only
		X02829S1

Data/Control

Isolation

Microcontoller

(uC)

UART

Digital

Meter

FIGURE 7-1 Model 344 Electronics Module Block Diagram

7-2	September 1995

UM344-2 specifications

The Siemens UM344-2 is a cutting-edge industrial controller designed to meet the demands of modern automation and control systems. This powerful device is specifically developed for use in various applications, including manufacturing, process control, and machinery integration. The UM344-2 stands out for its versatility and robust performance in harsh industrial environments.

One of the main features of the Siemens UM344-2 is its high processing speed, which allows for real-time data processing and decision-making. The controller utilizes advanced microprocessor technology, ensuring quick response times and efficient operation. Its architecture supports multitasking, enabling it to manage multiple processes simultaneously without compromising performance.

The UM344-2 features a modular design, which provides flexibility in configuration and scalability. Users can easily add or remove modules to tailor the system to specific application requirements. This adaptability is beneficial for businesses that need to scale their operations or adjust to changing production demands. The controller is compatible with a variety of I/O modules, allowing for seamless integration with other equipment and systems.

In terms of connectivity, the Siemens UM344-2 supports various communication protocols, including Profibus, Profinet, and Ethernet. This versatility ensures smooth data exchange between the controller and other devices in the automation ecosystem, facilitating comprehensive monitoring and control. The inclusion of these communication standards enhances interoperability and allows for the integration of legacy systems with newer technology.

The Siemens UM344-2 is equipped with advanced diagnostic tools, which enable users to monitor system performance and detect potential issues in real-time. This feature reduces downtime and maintenance costs by allowing for proactive management of the system. The controller also supports remote access capabilities, enabling technicians to troubleshoot and configure systems from off-site locations.

Safety is a critical consideration in industrial environments, and the UM344-2 is designed with this in mind. It incorporates safety-certified features, ensuring compliance with international safety standards. Users can implement safety functions directly within the controller, streamlining system design and reducing the need for external safety components.

Overall, the Siemens UM344-2 exemplifies the fusion of technology and practical application, making it an essential component for businesses looking to enhance their automation processes. With its high performance, flexibility, and focus on safety, the UM344-2 is a reliable choice for industries aiming for efficiency and innovation in their operations.

Siemens UM344-2 user manual Model 344 Electronics Module Block Diagram

Models: UM344-2

Input Circuitry

Output Circuitry

(RXA)

FIGURE 7-1 Model 344 Electronics Module Block Diagram

UM344-2 specifications