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General| Brand | Bitzer Group |
|---|---|
| Model | Lodam LMC341 DIWE |
| Category | Recording Equipment |
| Language | English |
Provides essential guidance for installing the LMC341 DIWE, emphasizing user familiarization with the manual and the need for authorized personnel.
Highlights that the LMC341 DIWE is not a safety component and outlines crucial safety practices for operation and installation.
Details the LMC341 DIWE's role in optimizing condensing units for energy savings through remote Modbus/RS485 control.
Defines key terms and acronyms such as BEST, HW, LMT, Modbus, and RS485 used throughout the manual for clarity.
Illustrates various connection topologies for Modbus communication, including single and multi-drop configurations using RS485.
Offers recommendations on poll-interval settings and data polling frequency for optimal Modbus communication performance.
Details the physical connections on the LMC341 DIWE controller for Modbus, including terminal descriptions and grounding.
Specifies technical requirements for Modbus communication cables, covering type, length, impedance, and capacitance for reliability.
Explains network configuration for LMC341 DIWE controllers, detailing device limits and the strategic use of RS485 repeaters.
Recommends using isolated RS485 repeaters for network segmentation and lists tested repeater models for compatibility.
Provides recommendations for routing signal, control, and power cables to minimize interference and ensure signal integrity.
Details the Modbus RTU protocol setup, including node address, baud rate, data bits, parity, and stop bits for configuration.
Explains data scaling methods for Modbus transmission and defines common data types used for parameter representation.
Lists and describes common Modbus function codes used for reading and writing data registers within the controller.
Details Modbus exception codes, their meanings, and the scenarios where they typically occur during communication.
Lists and describes status parameters available on the LMC341 DIWE, viewable via the LUP200 display for monitoring.
Details analogue and digital input readings from the LMC341 DIWE controller, including units, ranges, and register addresses.
Describes the status of relay outputs (RE1-RE9) on the LMC341 DIWE controller and their respective functions.
Explains alarm sorting, coding, and reset procedures, covering alarm numbers, severity levels, and status indicators.
Lists parameters for controlling and viewing the LMC341 DIWE operation, including mode, setpoints, and fan control.
Provides general Modbus communication samples for request/response sequences for input and holding registers.
Lists the standards the product adheres to, including safety, immunity, and emission standards, and CE approval.
Offers steps to diagnose and resolve communication problems, covering power, wiring, node address, and communication speed checks.
Provides a dedicated space for users to record additional notes or remarks not covered elsewhere in the manual.
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