6ES7131-6BH01-0BA0 SIMATIC ET 200SP

SKU: 6ES7131-6BH01-0BA0 Category: PLC

Description
Additional information

The Siemens SIMATIC ET 200SP is a modular, distributed I/O system belonging to the ET 200SP product family, designed for use with SIMATIC S7-1200 and S7-1500 controllers via PROFINET or PROFIBUS. The specific module 6ES7131-6BH01-0BA0 is a digital input module (Type 6ES7131-6BH01-0BA0) providing 16 digital inputs at 24 V DC, forming part of the ET 200SP peripheral expansion system. It is manufactured by Siemens and is fully integrated into the TIA Portal engineering framework.

The 6ES7131-6BH01-0BA0 digital input module supports 16 channels of 24 V DC digital input signals with a signal input delay configurable per channel group. The module uses push-in terminal technology for fast, tool-free wiring and supports hot-swapping when used with the appropriate BaseUnit. It conforms to IEC 61131-2 input type 1 and type 3 standards and carries CE, UL, and cULus certifications. Diagnostics are available at the channel level, and the module communicates status via integrated LED indicators per channel.

The ET 200SP system with the 6ES7131-6BH01-0BA0 module is widely deployed in machine automation, conveyor systems, packaging machinery, and process plants where distributed I/O is required close to the field devices. Its compact form factor and modular design make it suitable for control cabinet installations with limited space. The system is particularly common in automotive manufacturing, food and beverage processing, and intralogistics applications where high channel density and reliable digital signal acquisition are essential.

Technical Specifications

Number of Digital Inputs	16
Input Voltage (Rated)	24 V DC
Input Voltage Range	20.4 – 28.8 V DC
Input Current (Typical, per Channel)	3.5 mA
Input Delay (Configurable)	0.05 ms – 20 ms
Supply Voltage (Load Voltage L+)	24 V DC
Current Consumption from Backplane Bus	max. 65 mA
Power Dissipation	max. 1.4 W
Operating Temperature	0 °C to +60 °C
Storage Temperature	-40 °C to +70 °C
Relative Humidity	5 % to 95 % (non-condensing)
IP Rating	IP20
Dimensions (W x H x D)	15 mm x 73 mm x 58 mm
Mounting	35 mm DIN rail via BaseUnit
Certifications	CE, UL, cULus, ATEX (Zone 2)
Compatible Controller	SIMATIC S7-1200, S7-1500, ET 200SP CPU

Common Diagnostic Fault Codes

Fault Code 1: Short circuit or overload detected on one or more input channels
Check field wiring for short circuits. Verify that connected sensors do not exceed the rated input current. Replace damaged sensors or wiring.
Fault Code 2: Missing or incorrect supply voltage on the BaseUnit load group
Verify 24 V DC supply voltage at the BaseUnit terminals. Check fusing and power supply output. Ensure correct BaseUnit type is used for the module.
Fault Code 3: Wire break detected on a digital input channel (when wire-break detection is enabled)
Inspect field wiring for open circuits. Confirm that the sensor or switch is properly connected. Re-enable wire-break detection only if 2-wire sensors with sufficient quiescent current are used.
Fault Code 4: Parameter assignment error — module received invalid or incompatible configuration data
Review module parameters in TIA Portal. Ensure the hardware configuration matches the physical module type and firmware version. Download corrected configuration to the controller.
Fault Code 5: Module not recognized or communication error on backplane bus
Check that the module is correctly seated on the BaseUnit. Inspect the BaseUnit for damage. Replace the module or BaseUnit if the fault persists after reseating.
Fault Code 6: Ambient temperature exceeded the permissible operating range
Measure cabinet internal temperature. Improve ventilation or add cooling. Ensure module is not mounted adjacent to high heat-generating components.
Fault Code 7: Firmware version mismatch between module and TIA Portal hardware catalog entry
Update the TIA Portal hardware support package (HSP) to the version matching the installed module firmware. Alternatively, update the module firmware using TIA Portal firmware update function.

Frequently Asked Questions

What type of signals does the 6ES7131-6BH01-0BA0 accept?

This module accepts 24 V DC digital input signals, compatible with IEC 61131-2 Type 1 and Type 3 sensors including 2-wire and 3-wire proximity switches and pushbuttons.

Which BaseUnit is required for the 6ES7131-6BH01-0BA0?

This module requires a light-colored (BU type A0) BaseUnit such as the 6ES7193-6BP00-0BA0, which provides the necessary terminal connections and backplane bus interface. The BaseUnit type determines the wiring topology.

Is hot-swapping supported with this module?

Yes, the ET 200SP system supports hot-swapping of I/O modules during operation, provided the CPU and configuration are set up to allow it, enabling module replacement without shutting down the entire system.

Can the input delay be configured individually per channel?

Input delay is configurable per channel group (groups of channels share a common delay setting) within TIA Portal, with selectable delay times ranging from 0.05 ms to 20 ms.

Which controllers are compatible with this ET 200SP module?

The 6ES7131-6BH01-0BA0 is compatible with SIMATIC S7-1500, S7-1200, and ET 200SP CPUs communicating via PROFINET, as well as PROFIBUS DP masters when used with an appropriate ET 200SP interface module.

Troubleshooting

Channel status LEDs do not illuminate when input signal is applied

Verify 24 V DC supply voltage is present at the BaseUnit load terminals. Check that the input signal voltage is within the 20.4–28.8 V DC range. Confirm the field device is functioning correctly with a multimeter.

Restore correct supply voltage to the BaseUnit. Replace the field sensor if it is not producing the correct output voltage. If LEDs remain off with confirmed correct voltage, replace the input module.

Module shows a red DIAG LED and is reported as faulted in TIA Portal

Read the diagnostic buffer in TIA Portal online diagnostics. Identify the specific fault code reported. Check for wiring faults, supply voltage issues, or parameter assignment errors.

Correct the identified fault based on the diagnostic code. This may involve fixing field wiring, correcting the hardware configuration in TIA Portal, or replacing a defective module.

Module is not detected by the CPU after installation

Confirm the module is fully seated on the BaseUnit and the BaseUnit is correctly connected in the ET 200SP station. Check that the hardware configuration in TIA Portal matches the physical slot position and module type.

Reseat the module firmly on the BaseUnit. Update the TIA Portal hardware configuration to include the correct module at the correct slot. Download the updated configuration to the CPU.

Inputs read incorrectly or show erratic signal states

Check field wiring for loose connections, electromagnetic interference sources nearby, or incorrect grounding. Measure actual input voltage levels at the module terminals during operation.

Secure all terminal connections. Increase input filter delay time in TIA Portal to suppress noise. Improve cable shielding and ensure proper grounding of the ET 200SP station and field devices.

Module cannot be replaced hot without causing a CPU stop

Check the CPU configuration in TIA Portal to confirm hot-swap capability is enabled. Verify the correct BaseUnit type is used, as some BaseUnit variants do not support hot-swapping.

Enable the hot-swap option in the module properties within TIA Portal and download the updated configuration. Ensure the BaseUnit used is rated for hot-swap operation.

Condition	Repair, Used, Refurbished, New in box (sealed)