ON-LINE AND OFF-LINE OPERATION

UM344-2

DOWNLOADING

CONFIGURATION

- PLEASE WAIT -

DOWNLOAD

COMPLETE

5.1.3Local Transmitter Operation

2.From the above Warning screen, press one of the following two keys:

DOWNLOAD - start a download. The MXC will show the Download Wait screen and then the Download Complete screen. The new configuration is now stored in the transmitter.

ABORT - return to the previous screen.

The Model 344 has two local pushbuttons labeled FS (Fullscale) and Z (Zero) located on the housing. These are used to set range and damping when the controller block is configured “OFF”. This is detailed in the following sections.

When the controller block is configured “ON” the ranging/ damping capabilities are not available. In this mode the pushbuttons may be used to transfer between AUTO and MANUAL control, change VALVE output, and change the SETPOINT. This is detailed in the following sections.

Local Pushbutton Operation:

The “Pushbutton Mode” must be activated as described below to use the Zero and Full Scale pushbuttons.

The Pushbutton Mode is activated whenever either pushbutton is pressed and held for a minimum of 5 seconds and then released. The “PB” annunciator on the Digital Meter will be lit while the Pushbutton Mode is active.

The Pushbutton mode will automatically time-out after 1 minute.

Failure to hold a pushbutton ON for a minimum of 5 seconds will prevent entry into the Pushbutton mode.

The pushbuttons are disabled when the transmitter is placed in “CONFIGURATION HOLD,” as when downloading a configuration.

Pushbuttons are enabled or disabled by jumper W1 on the Electronics Module and are enabled by the factory. Jumpering pins 2 and 3 equals ENABLE. When the jumper is in the DISABLE position, the pushbuttons perform no function.

5-14

September 1995

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Siemens UM344-2 user manual Local Transmitter Operation, Local Pushbutton Operation

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.