
6ES7137-6CA00-0BU0 SIMATIC ET 200SP CM 1xDALI Master Module
This entry details the Siemens 6ES7137-6CA00-0BU0 communication module designed for DALI bus integration within the SIMATIC ET 200SP system. The unit functions as a master controller with built-in power supply capabilities for connected devices.
Quick Facts
- Part number
- 6ES7137-6CA00-0BU0
- Brand
- Siemens
- Category
- I/O Modules
- Product type
- CM 1xDALI
- Lifecycle
- Active Product
- Dimensions
- 7.5 x 6.7 x 2.9 cm
- Net weight
- 0.057 Kg
- Source category
- CM 1xDALI
Product Overview
The 6ES7137-6CA00-0BU0 is a communication module belonging to the SIMATIC ET 200SP series, specifically engineered for Digital Addressable Lighting Interface applications. It serves as a dedicated master device for managing lighting control networks in industrial environments.
This module integrates a DALI bus power supply capable of delivering 160 mA directly to connected control gears. It facilitates the connection of up to 64 DALI control gears, supporting a maximum of 63 individual control devices per bus segment.
Technical Review Notes
- The device operates as a CM 1xDALI unit, providing a single channel for DALI communication protocols within the automation architecture.
- Integrated bus power supply delivers a constant current of 160 mA to ensure stable operation of connected DALI control gears.
- Maximum capacity allows for the management of up to 64 DALI control gears on a single bus segment without external amplifiers.
- The system supports addressing and controlling up to 63 distinct control devices, enabling precise individual or group lighting management.
- Physical dimensions are recorded at 7.5 cm in width, 6.7 cm in height, and 2.9 cm in depth for compact mounting.
- Net weight is listed as 0.057 Kg, contributing to lightweight design considerations for DIN rail installation in control cabinets.
Model Identification
- Brand designation is recorded as Siemens, indicating the manufacturer of this industrial automation component.
- Product type is identified as CM 1xDALI, specifying its role as a Communication Module for DALI interfaces.
- Lifecycle status is listed as Active Product, confirming current production status for new project implementations.
- Color code CC20 is associated with this specific model variant for visual identification during inventory and installation.
Technical Parameters
| Product type | CM 1xDALI |
|---|---|
| Lifecycle | Active Product |
| Dimensions | 7.5 x 6.7 x 2.9 cm |
| Net weight | 0.057 Kg |
| Source category | CM 1xDALI |
Parameters are factual source fields retained for model review.
Parameter Review
- The part number 6ES7137-6CA00-0BU0 is the primary identifier for sourcing and documentation purposes in technical queries.
- Normalized part number format appears as 6ES71376CA000BU0, removing hyphens for standardized database indexing and search alignment.
- Category classification places this item under I/O modules, specifically within the Communication sub-category for interface hardware.
- Source category path indicates hierarchy from Automation technology down to I/O modules, Communication, and finally CM 1xDALI.
- Dimensions and weight parameters are fixed physical attributes that influence mechanical fit and load calculations for mounting structures.
Catalog Classification
Image & Label Review
- Visual inspection should confirm the presence of the Siemens branding and the specific model number label on the housing.
- Check for clear marking of the DALI bus terminals and power supply connections on the front connector interface.
- Verify the color code indicator matches the CC20 specification recorded in the product documentation for this unit.
- Ensure the physical condition shows no damage to the housing or terminals that could affect electrical connectivity.
Product Image Gallery

Inquiry Preparation
- Review project documentation to confirm the requirement for a single-channel DALI master module within the ET 200SP rack.
- Verify that the total number of control gears does not exceed the 64-unit limit for a single bus segment.
- Confirm that the 160 mA integrated power supply meets the current demands of all connected DALI devices.
- Check mechanical constraints to ensure the 7.5 x 6.7 x 2.9 cm footprint fits the designated DIN rail space.
Category Context
This module falls under the broader category of I/O modules used for interfacing field devices with the PLC.
Specifically, it belongs to the Communication class, handling specialized protocols like DALI for lighting control applications.
Review Notes
- All technical specifications are derived directly from the provided source data for accuracy in inquiry submissions.
- No external claims regarding inquiry detail, catalog record levels, or delivery times are included in this technical description.
- Users should verify all parameters against their specific application requirements before finalizing technical documentation or requests.
- This copy is intended solely for informational purposes to assist in the preparation of detailed product inquiries.



