1785-L46B | Allen-Bradley PLC-5 Programmable Controller

1785-L46B PLC-5/46 Processor: 48K Protected Memory & 4 DH+ Ports

Technical Specifications of the 1785-L46B Processor

• Brand: Allen-Bradley
• Part Number: 1785-L46B
• Product Type: Standard Programmable Controller (PLC-5/46)
• Max User Memory: 48 Kilowords, battery-backed static RAM
• Protected Memory: Yes (integrated memory protection)
• Max Total I/O: 2048 any mix or 2048 in + 2048 out complementary
• Max Analog I/O: 2048 channels
• Communication Ports: 4 DH+/Remote I/O (adapter or scanner) + 1 serial (9-pin D-shell)
• Program Scan Time: 0.5 ms per K word (bit logic), 2 ms per K word (typical)
• I/O Scan Time per Rack: 10 ms at 57.6 kbit/s, 7 ms at 115.2 kbit/s, 3 ms at 230.4 kbit/s
• Max I/O Chassis Total: 61 (32 universal remote per I/O link)
• Hardware Addressing Modes: 2-slot, 1-slot, or 1/2-slot
• Backplane Current Load: 3.0 A at 5 VDC
• Power Dissipation: 17.3 Watts
• Operating Temperature: 0 to 60 °C (32 to 140 °F)
• Storage Temperature: -40 to 85 °C (-40 to 185 °F)
• Relative Humidity: 5 to 95% (non-condensing)
• Shock & Vibration: 30G shock, 1G vibration at 10-500 Hz
• Weight: 1.42 kg (3.1 lbs)
• Certifications: UL, CSA, C-TICK, CE
• Battery: 1770-XYC
• EEPROM Backup Options: 1785-ME32, -ME64, -M100
• Compatible I/O: Bulletin 1771, 1794, 1746, and 1791 modules (8, 16, 32-point, and intelligent modules)

Frequently Asked Questions (FAQ)

• Q: Is the 1785-L46B brand new and original?
  A: Yes, we supply only new original Allen-Bradley products.
• Q: Do you have stock for the 1785-L46B?
  A: Yes, we have stock available. You can order immediately.
• Q: What is your shipping time?
  A: We process and ship within 5 days after order confirmation.
• Q: Which carriers do you use?
  A: We ship via FedEx, UPS, or DHL. You will receive a tracking number.
• Q: Can I return the 1785-L46B?
  A: Yes, we support 30-day returns from the delivery date.
• Q: What does protected memory do on the 1785-L46B?
  A: Protected memory prevents unauthorized access to program blocks, routines, and I/O configuration. It adds security for critical data.
• Q: How many DH+ ports does the 1785-L46B have?
  A: The 1785-L46B has four DH+/Remote I/O ports. You configure each port as an adapter or a scanner.
• Q: Does this processor support extended local I/O chassis?
  A: No, the 1785-L46B does not support extended local I/O chassis. It supports universal remote I/O chassis only.
• Q: What is the maximum analog I/O capacity?
  A: The 1785-L46B supports up to 2048 analog I/O channels.

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