1785-L20C15 16K Memory PLC-5 ControlNet Allen-Bradley

Allen-Bradley 1785-L20C15 ControlNet PLC-5/20C Processor

Technical Specifications (1785-L20C15)

• Manufacturer:Allen-Bradley
• Part Number: 1785-L20C15
• Module Type: ControlNet PLC-5 Processor (PLC-5/20C)
• Max User Memory: 16 Kilowords (battery-backed static RAM)
• Forcible I/O Capacity: 512 any mix or 384 in + 384 out complementary
• Non-forcible I/O Capacity: 3200 discrete or 32000 analog
• Max Analog I/O (forcible): 512 points
• Max I/O Chassis: 77 total (0 extended local, 12 universal remote)
• Backplane Current Load: 2.7 A typical / 3 A max at 5 V DC
• Heat Dissipation: 54 BTU per hour
• ControlNet I/O Scan Time: 0.5 ms average per rack
• RS-232-C / DH+ / RIO Ports: One RS-232-C (Channel 0), one dedicated DH+ (Channel 1A), one configurable RIO/DH+ (Channel 1B), plus ControlNet interface

Frequently Asked Questions (FAQ)

• Q: Is the 1785-L20C15 a brand new original unit?
  A: Yes, we supply only new, original Allen-Bradley products. No refurbished or counterfeit items.
• Q: Can this processor work with 32000 analog I/O points?
  A: Yes, the 1785-L20C15 supports up to 32000 non-forcible analog I/O through the ControlNet network.
• Q: What happens when the battery LED turns red?
  A: The BATT indicator shows a low lithium battery. Replace it within a few days to avoid losing the user program. The EEPROM option provides additional safety.
• Q: Can I mix different ControlNet phases on the same network?
  A: No. The 1785-L20C15 uses ControlNet phase 1.5. You cannot mix it with phase 1.0 or 1.25 devices on the same link.
• Q: What is your return policy?
  A: We accept returns within 30 days of delivery. The product must remain in original, unopened condition.
• Q: How long until I receive my order?
  A: We dispatch orders within 5 working days. Express couriers (FedEx, UPS, DHL) then deliver in 2–7 days worldwide.

For inquiries or to place an order, please contact us:
Email: sales@nex-auto.com
WhatsApp: +86 153 9242 9628
Partner: NexAuto Technology Limited