6ES5261-5AA31 Digital Input Module, Siemens SIMATIC S5 PLC, Industrial Control System Component

Siemens 6ES5261-5AA31 module

SIMATIC S5 digital input

16-channel 24VDC PLC

6ES5261-5AA31

Siemens 6ES5261-5AA31 module is a SIMATIC S5 digital input 16-channel 24VDC PLC component designed for industrial automation, enabling reliable signal processing and control system integration.

Specification

SEODescription

The Siemens 6ES5261-5AA31 module is a robust SIMATIC S5 digital input component designed for 16-channel 24VDC PLC systems, enabling seamless integration of binary signals from sensors or switches. It interfaces directly with SIMATIC S5 backplane modules, supporting up to 16 isolated inputs with a 24VDC operating range (20.4–28.8V) and industrial-grade durability in 0–55°C environments. Ideal for manufacturing, automotive, and heavy machinery sectors, this module excels in reliability and noise immunity for harsh conditions. However, it lacks modern communication interfaces like Ethernet or PROFIBUS, limiting compatibility with newer systems. Its compact design ensures easy installation but requires legacy S5 infrastructure, making upgrades challenging for advanced automation needs.

SEOSpecification

Parameter	Specification
Module Type	Siemens 6ES5261-5AA31 module
Series	SIMATIC S5 digital input module
Input Type	24VDC sink/source
Channels	16-channel isolated inputs
Input Current	7mA per channel (typical)
Power Consumption	1.5W (max)
Isolation	Optical isolation between field and logic
Response Time	≤ 3ms
Compatibility	SIMATIC S5 PLC systems
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Protection Class	IP20
Dimensions (WxHxD)	40mm x 125mm x 117mm
Weight	≈ 300g
Certification	CE, UL, cULus

SEOQandA

question:Can I schedule self-pickup with official couriers myself?
answer:Yes, you can arrange self-pickup directly with official couriers. Contact our support team for guidance if needed.
question:Does the company have a professional product selection engineering team?
answer:Yes, we have a dedicated team of engineers specializing in product selection, market analysis, and compliance support.
question:Can I apply for low-value declaration on shipments?
answer:Low-value declaration is possible depending on destination regulations. Provide shipment details for accurate assistance.

SEOQandA_Product

question:Module not communicating with PLC.
answer:Check address settings and wiring. Ensure proper communication protocol (e.g., Profibus) is configured.
question:Input channels not reading signals.
answer:Verify input signal type (voltage/current) matches configuration. Inspect wiring for loose connections.
question:Module overheating during operation.
answer:Ensure adequate ventilation and ambient temperature stays within 0-60°C. Check power supply stability.
question:Configuration software fails to detect module.
answer:Update firmware via Siemens TIA Portal or STEP7. Verify compatible GSD file installation.
question:Intermittent signal loss on inputs.
answer:Check grounding/shielding of signal cables. Replace damaged cables and ensure stable power supply.