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- 6ES7132-6HD01-0BB1
- Digital Output Module
- Germany
- 20 × 73 × 58 mm
- 0.05 kg
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Product Overview
The Siemens 6ES7132-6HD01-0BB1 is a relay-based digital output module belonging to the SIMATIC ET 200SP distributed I/O system. Its official product designation is RQ 4x120VDC-230VAC/5A NO ST, indicating four relay output channels with normally open contacts.
The module converts digital commands from a SIMATIC controller into electrical switching operations for external equipment. Each channel uses an isolated normally open relay contact, allowing the controller to switch external AC and DC circuits without directly carrying the field load current through its internal electronics.
The 6ES7132-6HD01-0BB1 supports switching voltages from 24 to 120 V DC and 24 to 230 V AC, with a maximum switching current of 5 A per channel under the specified load conditions. Its four-channel configuration makes it suitable for controlling contactors, auxiliary relays, signaling equipment, and other industrial electrical devices.
As part of the ET 200SP platform, the module communicates through the station backplane bus and is mounted on a compatible BU Type B0 or B1 BaseUnit. It also supports substitute value output and module diagnostics for supply voltage monitoring.
This module is particularly useful in distributed control cabinets where mechanical relay contacts are preferred for switching external circuits. Its isolated output arrangement is an important consideration when several independent field circuits operate at different electrical potentials.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model | 6ES7132-6HD01-0BB1 |
| Product Series | SIMATIC ET 200SP |
| Product Type | Digital Output Module |
| Official Product Designation | RQ 4x120VDC-230VAC/5A NO ST |
| Module Type | Relay Output Module |
| Number of Digital Outputs | 4 |
| Output Type | Relay |
| Contact Configuration | Normally Open (NO) |
| Electrical Isolation | Isolated Contacts |
| Rated Supply Voltage | 24 V DC |
| Permissible Supply Voltage | 19.2–28.8 V DC |
| Switching Voltage (DC) | 24–120 V DC |
| Switching Voltage (AC) | 24–230 V AC |
| Maximum Switching Current | 5 A per Channel |
| Contact Arrangement | 4 Independent Normally Open Contacts |
| Compatible BaseUnit | BU Type B0 / B1 |
| Color Code | CC40 |
| Substitute Value Output | Yes |
| Module Diagnostics | Supply Voltage Monitoring |
| Configuration Software | STEP 7 V14 or Higher |
| PROFIBUS Configuration | GSD Revision 3 and Higher |
| PROFINET Configuration | GSDML V2.3 |
| Short-Circuit Protection | No |
| Safety Function Suitability | No |
| Protection Rating | IP20 |
| Operating Temperature | -30 to +60°C (Horizontal Installation) |
| Dimensions | 20 × 73 × 58 mm |
| Weight | 0.05 kg |
Product Features
- Four Relay Output Channels: Provides four independent switching channels for external industrial equipment.
- Normally Open Contacts: Each channel uses an NO relay contact that closes when the corresponding output is activated.
- Electrical Isolation: The relay contacts are electrically isolated from one another and from the backplane bus and electronics supply.
- Wide Switching Voltage Range: Supports 24–120 V DC and 24–230 V AC switching applications.
- 5 A Switching Capacity: Supports a maximum switching current of 5 A per channel under specified operating conditions.
- Substitute Value Output: Supports substitute output values for defined controller or communication conditions.
- Supply Voltage Diagnostics: Provides diagnostic information for monitoring the module supply voltage.
- LED Status Indication: Includes PWR and DIAG indicators for checking module operating conditions.
- Flexible BaseUnit Compatibility: Fits compatible BU Type B0 and B1 BaseUnits.
- Distributed I/O Integration: Connects to the SIMATIC ET 200SP station through its backplane bus.
Product Working Principle
The Siemens 6ES7132-6HD01-0BB1 operates by converting digital output commands into mechanical relay switching actions.
The SIMATIC controller sends an output command through the ET 200SP interface module. The command travels across the station backplane bus to the relay output module, where the corresponding channel is activated.
When the output is switched on, the internal relay coil is energized. The resulting electromagnetic force closes the normally open contact, completing the external electrical circuit. When the output is switched off, the relay releases and the contact returns to its normally open position.
A simplified control arrangement is:
SIMATIC PLC → ET 200SP Interface Module → Backplane Bus → 6ES7132-6HD01-0BB1 → Relay Contacts → External Loads
Each of the four channels operates independently. This allows a single module to control several external devices, such as contactors, alarm circuits, and auxiliary electrical equipment.
The isolated contact arrangement separates individual relay circuits electrically. This is useful when the connected loads operate at different voltage levels or belong to separate electrical control circuits.
The module also supports substitute value output. When configured in the engineering system, substitute values can be used under specified operating conditions to establish a predefined output state.
Because mechanical relays use physical contacts, their switching frequency and electrical load characteristics must be considered. Inductive loads may generate switching transients, so suitable external suppression and protection should be provided.
Role in Siemens SIMATIC ET 200SP Control Architecture
Within the SIMATIC ET 200SP distributed I/O architecture, the 6ES7132-6HD01-0BB1 acts as an interface between PLC output logic and external electrical circuits.
The controller executes the automation program and transfers output commands to the ET 200SP station through the communication interface. The backplane bus distributes these commands to the relay output module.
The module then operates the corresponding relay contacts to control the connected field devices.
A typical control arrangement is:
SIMATIC PLC → ET 200SP Interface Module → Backplane Bus → 6ES7132-6HD01-0BB1 → Field Devices
| System Component | Function |
|---|---|
| SIMATIC S7-1200 / S7-1500 PLC | Executes automation logic |
| ET 200SP Interface Module | Connects the distributed I/O station to the controller network |
| 6ES7132-6HD01-0BB1 | Provides four isolated relay outputs |
| ET 200SP BU Type B0 / B1 | Provides module mounting and electrical connections |
| 24 V DC Power Supply | Supplies the module electronics and relay circuits |
| Contactors | Switch external power circuits |
| Solenoid Valves | Receive relay-based switching commands |
| Indicator Lights | Provide visual operating status |
| Field Wiring | Connects relay contacts to external equipment |
The isolated contact arrangement is particularly useful when separate field circuits must be switched through one distributed I/O station.
Industrial Applications
The 6ES7132-6HD01-0BB1 is suitable for industrial automation installations requiring relay-based switching of external AC and DC electrical loads.
| Industrial Application | Typical Use |
|---|---|
| Manufacturing Automation | Switching contactors and auxiliary electrical equipment |
| Packaging Machinery | Operating machine actuators and control circuits |
| Conveyor Systems | Controlling motor contactor circuits |
| Material Handling | Switching external devices and signaling equipment |
| Water Treatment | Operating pumps and auxiliary electrical circuits |
| HVAC Automation | Switching fans, dampers, and control relays |
| Chemical Processing | Controlling external electrical equipment |
| Power Distribution | Switching auxiliary control circuits |
| Industrial Assembly Lines | Operating machine interlocks and indicator devices |
| Building Automation | Controlling compatible electrical loads |
Installation and Maintenance
- Verify the Module Number: Confirm that 6ES7132-6HD01-0BB1 matches the project hardware configuration and required relay output specifications.
- Check BaseUnit Compatibility: Use a compatible BU Type B0 or B1 BaseUnit and verify the mechanical coding arrangement before installation.
- Inspect the Module: Check the housing, connector contacts, and terminal interfaces for visible damage.
- Isolate the Power Supply: Disconnect the relevant power supplies before installing or removing the module.
- Mount the Module: Install the module on the designated ET 200SP BaseUnit and ensure that it is securely seated.
- Verify Supply Voltage: Confirm that the 24 V DC supply is within the specified 19.2–28.8 V DC operating range.
- Check Output Wiring: Connect each normally open relay contact according to the Siemens wiring diagram and the external circuit requirements.
- Verify Electrical Isolation: Keep separate field circuits correctly wired and avoid introducing unintended electrical connections between isolated output channels.
- Check Load Ratings: Ensure that the connected equipment does not exceed the permitted switching voltage and current ratings.
- Provide External Protection: Install suitable external fuse protection for the relay output circuits according to Siemens installation requirements.
- Configure the Module: Configure the module in STEP 7 or TIA Portal using the applicable hardware configuration and GSD information.
- Perform Functional Testing: Test all four relay outputs individually, verify contact operation, inspect diagnostic LEDs, and document the commissioning results.
During routine maintenance, inspect terminal connections, relay switching performance, and external protection devices. Particular attention should be given to inductive loads because switching transients can accelerate relay contact wear.
Compatible System Components
| Component | Function |
|---|---|
| Siemens 6ES7132-6HD01-0BB1 | Four-Channel Relay Digital Output Module |
| Siemens ET 200SP BU Type B0 | Compatible BaseUnit |
| Siemens ET 200SP BU Type B1 | Compatible BaseUnit |
| Siemens ET 200SP Interface Module | Distributed I/O Communication |
| Siemens 6ES7131 Series | ET 200SP Digital Input Modules |
| Siemens 6ES7132 Series | ET 200SP Digital Output Modules |
| Siemens 6ES7134 Series | ET 200SP Analog Input Modules |
| Siemens 6ES7135 Series | ET 200SP Analog Output Modules |
| Siemens SITOP Power Supply | 24 V DC Power Supply |
Recommended Related Models
| Model / Product | Product Type | Typical Application |
|---|---|---|
| Siemens 6ES7132-6HC50-0BU0 | Digital Output Module | ET 200SP isolated relay outputs |
| Siemens 6ES7132-6HC70-0BU0 | Digital Output Module | ET 200SP non-isolated relay outputs |
| Siemens 6ES7132-6GD51-0BA0 | Signal Relay Module | ET 200SP relay switching |
| Siemens 6ES7132-6MD00-0BB1 | Digital Output Module | ET 200SP relay output control |
| Siemens 6ES7132-6BH00-0AA0 | Digital Output Module | ET 200SP transistor outputs |
| Siemens 6ES7132-6BH01-0BA0 | Digital Output Module | ET 200SP digital switching |
Key Advantages
- Four independent relay output channels.
- Normally open contacts for external circuit switching.
- Electrical isolation between relay contacts.
- Supports AC and DC switching applications.
- Maximum switching current of 5 A per channel under specified conditions.
- Compatible with BU Type B0 and B1 BaseUnits.
- Substitute value output for configured operating conditions.
- Integrated supply voltage diagnostics.
- Suitable for distributed industrial control applications.
Technical FAQs
1. What does RQ 4x120VDC-230VAC/5A NO ST mean?
RQ identifies the relay output module, 4 indicates four output channels, 120 VDC and 230 VAC identify the supported DC and AC switching voltage ranges, 5A indicates the maximum switching current per channel under specified conditions, and NO means normally open contacts. ST identifies the standard module version.
2. Does the 6ES7132-6HD01-0BB1 provide isolated relay outputs?
Yes. The four relay contacts are electrically isolated from one another and from the backplane bus and electronics supply. This allows separate external circuits to be switched through the same module.
3. Which BaseUnit is compatible with the 6ES7132-6HD01-0BB1?
Siemens specifies BU Type B0 and BU Type B1 as compatible BaseUnits. The selected BaseUnit must also match the station wiring arrangement and mechanical coding requirements.
4. Can the 6ES7132-6HD01-0BB1 directly control inductive loads?
The module can switch compatible inductive loads within its specified electrical ratings. However, inductive loads can generate voltage transients during switching, so suitable external suppression and circuit protection should be considered.