Siemens 6ES7132-4HB01-0AB0 Digital Output Relay Module

Applications

The Siemens 6ES7132-4HB01-0AB0 is a two-channel relay output electronic module designed for the SIMATIC ET 200S distributed I/O system. It provides two normally open relay outputs for switching compatible AC and DC loads, making it suitable for industrial control applications that require electrical separation between the PLC control system and field devices.

Each output supports a rated switching current of up to 5 A. The module can switch DC loads up to 120 V and AC loads up to 230 V, allowing it to control a range of industrial actuators and electrical equipment.

Typical applications include:

• Contactor control: Switches compatible AC or DC contactor coils in motor control and machine automation circuits.

• Solenoid valve operation: Controls suitable AC and DC solenoid valves in pneumatic and fluid-handling systems.

• Industrial signaling: Operates indicator lamps and other compatible electrical signaling devices.

• Machine automation: Provides relay-based output switching for production equipment and automated machinery.

• Distributed I/O systems: Expands the output capacity of SIMATIC ET 200S remote I/O stations.

• Electrical isolation applications: Uses relay contacts to separate field load circuits from the electronic control side.

Advantages

1. Two Independent Relay Outputs

The module provides two normally open relay output channels. Each channel can switch a separate compatible load, supporting flexible field-device control.

2. AC and DC Load Compatibility

Unlike output modules designed exclusively for AC or DC switching, the 6ES7132-4HB01-0AB0 supports DC loads up to 120 V and AC loads up to 230 V.

3. Switching Capacity up to 5 A

Each relay output supports a rated current of 5 A under the specified operating conditions. This allows the module to control a variety of industrial electrical devices.

4. Electrical Isolation Between Channels

The relay output design provides electrical isolation between the two output channels and between the output circuits and the backplane bus. This helps accommodate field circuits with different electrical potentials.

5. Configurable Substitute Values

The module supports substitute-value behavior when the CPU or DP master enters STOP mode. Engineers can configure the appropriate response according to the machine's operating and safety requirements.

6. Individual Channel Status Indicators

Green LEDs indicate the switching status of the two output channels, helping maintenance personnel identify output conditions during commissioning and troubleshooting.

7. Compact ET 200S Integration

Its narrow design supports installation in distributed I/O stations, helping reduce control cabinet space requirements.

Technical FAQs

Q1: What is the main function of the Siemens 6ES7132-4HB01-0AB0?

It is a two-channel relay digital output module for the SIMATIC ET 200S distributed I/O system. It receives output commands from the PLC and switches connected AC or DC loads through mechanical relay contacts.

Q2: How many relay outputs does this module provide?

It provides two independent normally open (NO) relay outputs, identified as channels 0 and 1.

Q3: What voltage range can the relay contacts switch?

The module supports DC load voltages up to 120 V and AC load voltages up to 230 V. The connected load must remain within the specified electrical switching limits.

Q4: What is the maximum output current per channel?

The rated output current is up to 5 A per channel under specified operating conditions. The permissible current depends on ambient temperature and load characteristics.

Q5: Can this module control both AC and DC devices?

Yes. It can switch compatible AC and DC loads, including contactor coils, solenoid valves, and indicator lights.

Q6: Does the module have short-circuit protection?

No. The relay outputs do not provide integrated short-circuit protection. Appropriate external circuit protection must be selected according to the connected load and installation requirements.

Q7: Are the two relay output channels electrically isolated?

Yes. The two output channels are electrically isolated from each other. The output circuits are also isolated from the ET 200S backplane bus.

Q8: What happens to the outputs when the CPU enters STOP mode?

The module supports configurable substitute-value behavior. Depending on the parameter settings, the outputs can switch to a configured substitute value or retain their last state.

Q9: Which terminal modules are compatible with the 6ES7132-4HB01-0AB0?

Compatible ET 200S terminal modules include TM-E15C26-A1, TM-E15C24-A1, TM-E15C24-01, TM-E15C23-01, TM-E15S26-A1, TM-E15S24-A1, TM-E15S24-01, and TM-E15S23-01. The terminal type should be checked against the station's wiring requirements.

Q10: What should be checked if a relay output does not switch its connected load?

Check the 24 V DC supply from the power module, output wiring, terminal connections, PLC output command, relay contact condition, and external load voltage. Also verify the output parameters and inspect the channel status LEDs.