About West Control Solution RL 400 Rail Line Systems
For many demanding applications, Rail Line’s compact, multipurpose, and adaptable design provides accurate measurement, dependable limit monitoring, and stable control.

The Rail Line product line includes temperature limiters, controllers, transmitters, I/O modules, communication field bus couplers, and transmitters for strain gauge sensors for regulating, measuring, converting, and monitoring.
Description Of RL 400 Rail Line Systems
For precise and cost-effective signal monitoring and restricting applications, the TB 45 temperature limiter was created. Every TB 45 includes at least one universal input and two output relays. The TB 45 can optionally have an analog output for display purposes. Galvanic isolation is provided between inputs and outputs, from the supply voltage, and from the communication interfaces.
Mounting
The little TB 45 can be easily unmounted and is clipped onto a top-hat DIN rail. All of the connections are plugin-style, allowing for easy device replacement without causing any wiring disruptions.
Display and operation
The measured value and all of the unit’s operational activities can be shown simultaneously thanks to the dual-line LC display. Additionally, an LED and four additional display components provide a trustworthy indicator of error messages, operating mode, and functioning condition. The display can incorporate the user-configurable engineering unit of the measured value. Any signal or parameter can be shown in the second display line by using the extended operating level.
Interfaces and Engineering Tools
An Engineering Tool can also be used to adjust the limiter’s parameters. ® The user may complete the task at hand without having to follow operating instructions thanks to the BlueControl software, which includes a limiter simulation, and most importantly, the easy connection via the BluePort® front interface. Of course, the front of the gadget can also be used to adjust almost every parameter. Additionally, an optional RS 485 interface with Modbus RTU protocol installed in the top-hat DIN rail allows the TB 45 to communicate with higher-level PLCs and PCs. The rail line series’ fieldbus coupler can be connected to devices with an optional system interface.
Password protection
Unauthorized access to the limit settings and the Operating Levels is prevented with a password.
Feature Of RL 400 Rail Line Systems
- Configurable as limiter, monitor, or limit signaller
- Compact design, only 22.5 mmwide
- Clips onto top-hat DIN rail
- Plug-in screw terminals or spring-clamp connectors
- Dual-line LC display with additional status indicators
- Convenient 3-key operation
- System communication via bus connector fitted in top-hat rail
- BluePort® front interface
- Two universal inputs (only for device type TB45-1)
- Two relay outputs
- Two pre-alarms
- Universal output for date retransmission
Sources : www.west-cs.co.uk
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