PCF802 Siemens SIMATIC S7 PLC Profibus Module | Industrial Controller Interface Card

Siemens PCF802 module

PCF802 digital input

16-channel 24VDC module

PCF802

The Siemens PCF802 module is a 16-channel 24VDC digital input module designed for industrial automation, offering reliable signal acquisition and seamless integration with control systems.

Specification

SEODescription

The Siemens PCF802 module is a robust 16-channel 24VDC digital input module designed for industrial automation systems. It features 16 isolated inputs compatible with 24VDC sensors and switches, supporting a voltage range of 20.4–28.8VDC. The PCF802 digital input module integrates seamlessly into Siemens SIMATIC S7-300/ET 200M PLC systems via a backplane bus, enabling direct connection to central processing units or expansion units without additional interfaces. Operating within a temperature range of 0°C to 60°C, it is ideal for harsh environments in manufacturing, process control, and machinery automation. Key advantages include high noise immunity, easy configuration, and DIN rail mounting. However, it lacks analog input capability and requires external power for sensors. Its compact design and reliability make it a preferred choice for scalable industrial I/O solutions.

SEOSpecification

Parameter	Specification
Manufacturer	Siemens AG
Model	PCF802
Module Type	Digital Input Module
Input Type	Sinking/Sourcing
Channel Quantity	16-channel
Input Voltage	24VDC nominal
Rated Voltage Range	20.4-28.8VDC
Current Consumption	≤5mA per channel
Isolation	500VAC channel-to-backplane
Response Time	≤1ms
Connection Method	Screw-type terminal
Compatibility	Siemens SIMATIC S7 series
Operating Temperature	-25°C to +60°C
Storage Temperature	-40°C to +70°C
Relative Humidity	5-95% non-condensing
Protection Class	IP20
Certification	CE, UL, cULus
Dimensions (WxHxD)	40x125x120mm
Weight	220g
Mounting	DIN rail installation
Bus Interface	Backplane bus connection
Diagnostics	Short-circuit/Open-circuit detection
LED Indicators	Per-channel status display
Power Requirements	24VDC via backplane
Cable Type	Shielded twisted pair
Housing Material	Polycarbonate/ABS blend
Warranty Period	24 months
Compliance	IEC 61131-2, EN 61000-6

SEOQandA

question:Why is the shipping cost so high? Are there more economical delivery options?
answer:Shipping costs include fuel surcharges and customs fees. We offer sea/air freight for lower rates. Contact us for quotes.
question:Do you accept payment after delivery?
answer:We require upfront payment or LC terms for initial orders. Established partners may qualify for negotiated payment terms.
question:What shipping methods do you support?
answer:We ship via DHL, FedEx, UPS, and offer sea/air freight. Options vary by destination and urgency. Confirm details with our team.

SEOQandA_Product

question:Why does the PCF802 fail to power on?
answer:Check power connections, ensure correct voltage input, and reset the device. If persistent, update firmware or contact support.
question:How to resolve calibration errors in PCF802?
answer:Reinitialize calibration settings, verify sensor integrity, and ensure proper environmental conditions. Recalibrate using manufacturer guidelines.
question:PCF802 shows unstable readings during operation. How to fix?
answer:Check for electromagnetic interference, stabilize power supply, and inspect sensor connections. Replace damaged components if necessary.
question:PCF802 software interface fails to connect. What steps to take?
answer:Reinstall drivers, verify USB/communication port functionality, and ensure software compatibility. Restart both device and host system.
question:How to address overheating in the PCF802 unit?
answer:Ensure adequate ventilation, clean dust from vents, and avoid prolonged high-load operation. Inspect internal cooling components if issues persist.