1785-L40E Allen-Bradley PLC5 Controller 48K Words

Allen-Bradley 1785-L40E PLC-5/40E Controller Overview

• 1785-L40E offers 48K words of user memory for complex control tasks. This battery-backed static RAM retains data reliably during power loss.
• It supports 2048 mixed I/O points or complementary 2048 in and 2048 out. Total analog I/O also reaches 2048 points.
• The controller draws 3.3A from the backplane and dissipates 17.3W of power. Compatible power supplies include 1771-P4S, -P6S, -P4S1, -P6S1.
• Operating temperature ranges from 0°C to 60°C (32°F to 140°F). Non-operating temperature extends from -40°C to 85°C (-40°F to 185°F).
• Rockwell Automation built this PLC-5/40E processor with four embedded communication interfaces. Two ports support DH+ and Remote I/O as adapter or scanner. One serial port works with RS-232, RS-423, and RS-422A standards. One Ethernet port supports 10/100 Mbps speeds.

Memory, I/O Capacity, and Communication Details

• 1785-L40E uses a 1770-XYC battery for memory backup. Optional EEPROM backup devices include 1785-ME16, -ME32, -ME64, and -M100.
• Maximum I/O per link equals 32. The processor scans each remote I/O rack at 10 ms at 57.6 kbit/s, 7 ms at 115.2 kbit/s, or 3 ms at 230.4 kbit/s.
• This PLC-5/40E supports up to 61 total I/O chassis. One chassis serves as the local chassis. The remaining 60 chassis work as universal remote I/O systems.
• The controller addresses I/O hardware in three modes: 2-slot, 1-slot, and half-slot. These modes handle any mix of 8-point, 16-point, or 32-point modules.
• Programming languages comply with IEC 61131-3 standards. Use Ladder Logic, Sequential Function Chart (SFC), or Structured Text (ST).

Environmental Tolerance, Certifications, and Physical Specs

• Operating humidity range sits at 5% to 95% non-condensing. The controller withstands operational shock of 30G and vibration of 1G at 10 to 500 Hz.
• 1785-L40E carries CSA, C-TICK, CE, and UL certifications. The open enclosure weighs approximately 1.38 kg (3.0 lbs).
• An internal real-time clock has an accuracy of ±5 minutes per month. It does not require de-rating within the specified temperature range.
• This processor supports advanced control algorithms including Proportional-Integral-Derivative (PID) functions. It also performs signal conditioning and discrete/analog device control.
• Maximum selectable I/O scan time for the extended-local I/O adapter equals 0.5 ms. The unit supports up to 16 I/O racks (0 to 15) and 61 chassis links.

Frequently Asked Questions (FAQ)

• Q: Is the 1785-L40E new and original?
  A: Yes, we supply only genuine new Allen-Bradley 1785-L40E controllers with full factory specifications.
• Q: What is the maximum I/O count for this PLC-5/40E?
  A: The 1785-L40E supports up to 2048 total I/O points in any mix or 2048 inputs plus 2048 outputs.
• Q: Can I use this controller with a DH+ network?
  A: Absolutely, the 1785-L40E includes two DH+/Remote I/O ports configurable as adapters or scanners.
• Q: What batteries does this processor need?
  A: It comes with a 1770-XYC battery pre-installed. Optional backup uses 1785-ME64, -ME32, or -M100 EEPROM modules.
• Q: How do you ship and what is the lead time?
  A: We use FedEx, UPS, or DHL. We ship within 5 days after order placement. We keep the item in stock.
• Q: What is the return policy for this 1785-L40E?
  A: We accept returns within 30 days for unused, original-condition units. Buyer pays return shipping unless the return results from our error.

For inquiries or purchase support, please contact us at sales@nex-auto.com or via WhatsApp at +86 153 9242 9628. Partner with NexAuto Technology Limited: https://www.nex-auto.com/