6ES7971-0BA00 Siemens SIMATIC S7-300 Front Connector 20-pin PLC Module Spare Part

Siemens 6ES7971-0BA00 Module

SIMATIC S7-300 Front Connector

40-pin PLC Signal Adapter

6ES7971-0BA00-

Siemens 6ES7971-0BA00 Module: 40-pin PLC Signal Adapter for SIMATIC S7-300 Front Connector, enabling secure signal integration and control in automation systems.

Specification

SEODescription

The Siemens 6ES7971-0BA00 Module is a robust 40-pin PLC Signal Adapter designed as a SIMATIC S7-300 Front Connector, enabling seamless integration of sensors and actuators with S7-300 I/O modules. It supports direct connection to one 40-pin digital or analog module, streamlining wiring for industrial automation systems. Featuring a compact design, this front connector ensures reliable signal transmission in harsh environments, operating within a temperature range of -20°C to +60°C and compatible with standard 24V DC industrial power supplies. Widely used in manufacturing, process control, and machinery, its key advantages include easy installation, space efficiency, and durable screw-type terminals. However, it lacks native communication interfaces, requiring additional modules for network connectivity. Ideal for applications demanding high-density signal routing and modular flexibility.

SEOSpecification

Parameter	Specification
Module Type	Siemens 6ES7971-0BA00 Front Connector
Compatibility	SIMATIC S7-300 PLC System
Connector Type	40-pin Spring-loaded Terminal
Pin Configuration	20 front + 20 rear (40-pin total)
Application	Signal Adapter for Digital/Analog I/O
Mounting	Direct S7-300 Module Attachment
Signal Types	24V DC Digital, 0-10V/4-20mA Analog
Cable Support	Pre-assembled Cable Management
Material	PBT Plastic Housing
Protection Class	IP20 (DIN 40050)
Temperature Range	-25°C to +60°C
Certification	CE, UL, cULus Listed
Weight	Approx. 80g
Dimensions	62 x 40 x 21 mm (WxHxD)
Color Code	Gray (RAL 7035)
Order Number	6ES7971-0BA00-0AA0

SEOQandA

question:Can the company provide technical selection services?
answer:Yes, we offer expert technical guidance to help select the best products for your needs.
question:Do you accept payment after delivery?
answer:Standard terms require prepayment or L/C, but flexible arrangements can be discussed case-by-case.
question:Can you share shipment photos or purchase dates of similar products?
answer:Yes, we can provide relevant information upon request, subject to client confidentiality agreements.

SEOQandA_Product

question:Why does the RS485 repeater (6ES7971-0BA00) fail to establish communication?
answer:Check terminal resistor activation and ensure proper termination at both network ends.
question:What causes the repeater's power LED to remain off?
answer:Verify 24V DC power supply polarity and voltage (19.2-30V DC). Ensure connections are secure.
question:Why does the repeater's diagnostic LED stay lit?
answer:Inspect PROFIBUS cable for shorts/breaks. Confirm baud rate matches network configuration.
question:How to resolve signal distortion in extended networks?
answer:Use shielded cables, maintain proper grounding, and avoid exceeding maximum segment length (1000m).
question:Why does the repeater not recognize new nodes?
answer:Update firmware via Siemens support, ensure node addresses are unique and within valid range.