1785-L40L Allen-Bradley PLC-5/40L Processor

Product parameters

General parameters

Module type: PLC-5 Enhanced Low Voltage DC Controller

Product Number: 1785-L40L

User memory: 48K words (48,000 words SRAM)

I/O capacity:

Maximum 2048 input + 2048 output (any combination)

Or 4096-point Complementary

I/O rack support: Up to 16 1771 I/O racks (addresses 0-15)

Installation method: Insert into the 1771 universal I/O rack (leftmost slot, single slot)

Protection grade: IP00 (Open type, needs to be installed in a protective cabinet)

Operating temperature: 0°C to 60°C (32°F to 140°F)

Storage temperature: -40°C to 85°C (-40°F to 185°F)

Relative humidity: 5% to 95% (non-condensing)

Vibration resistance: 2 g (10-500 Hz, IEC 68-2-6)

Seismic resistance: 30g (operating), 50g (non-operating, IEC 68-2-27)

Certification: UL, C-UL, CE, applicable to Class I, Division 2, Groups A, B, C, D or non-hazardous areas

Electrical parameters

Input power supply: 12-24V DC, nominal 24V DC

Backplane current

5V DC: 3.3A (Typical value)

3.3V DC: 0.2A

Power consumption: Maximum 18 W, heat dissipation 61.3 BTU/ hour

Battery: 3V lithium battery (1770-XYC), supporting SRAM memory backup, typical lifespan 1 year (ambient temperature 60°C)

Isolation voltage: 500V DC (channel-to-channel, channel-to-backplane)

Communication parameters

Communication port:

Two DH+/Remote I/O combination ports (supporting DH+ or Remote I/O adaptive)

1 DH+ dedicated port

One RS-232/422/485 port (supporting DH-485, DF1 full-duplex/half-duplex protocols)

Communication rate:

DH+/Remote I/O: 57.6 Kbps, 115.2 Kbps or 230.4 Kbps

RS-232/422/485:1200-19.2 Kbps

Maximum number of connections: 64 (the sum of DH+ and Remote I/O)

Support for I/O scanning: Through the Remote I/O port, up to 16 remote I/O racks can be controlled

Performance parameters

Program scanning time: approximately 0.5 ms/K words (typical ladder diagram logic)

I/O scanning time: 10 ms (57.6 Kbps), 7 ms (115.2 Kbps), 3 ms (230.4 Kbps)

Maximum timer/counter: 1000

Supported instructions: Ladder diagram, structured text, Function Block (PLC-5 instruction set)

Function

Medium control capability:

The 48K word memory supports medium-sized control programs and can handle 2048 I/O points, making it suitable for complex logic and data processing.

Supports multiple programming methods such as ladder diagrams and structured text, and is configured through the RSLogix 5 software.

Multi-communication port:

Four communication ports (2 DH+/RIO, 1 DH+, 1 RS-232/422/485), supporting DH+, Remote I/O, DH-485 and DF1 protocols.

It can communicate with HMI (such as 2711-M3A18L1), SCADA or other PLCS.

Distributed control

It supports up to 16 1771 I/O racks through the Remote I/O port and is suitable for distributed systems.

Cooperate with 1785-ENET to expand Ethernet communication capabilities.

High reliability

Low-voltage DC power supply (12-24V DC), suitable for special industrial environments.

Battery backup ensures that programs and data are retained in case of power failure.

Wide temperature range (0-60°C) and anti-vibration/shock design, suitable for harsh industrial conditions.

Diagnosis and Monitoring

Status indicator lights (RUN, BATT, FORCE, COMM, PROC) facilitate fault diagnosis.

Support the online editing and diagnostic functions of RSLogix 5.

Scalability

It can be integrated with 1771 I/O modules (such as 1771-WS weighing modules) and 1785-ENET Ethernet modules to expand its functions.

Application scenarios

Manufacturing industry: Used for production line control, such as in automotive manufacturing or metal processing, to manage sensors, actuators and I/O points.

Process control: In the chemical and food and beverage industries, it controls pumps, valves and sensors to support formula management and data recording.

Traditional system upgrade: Replace the old PLC-5 controller, retain the existing 1771 I/O rack, and expand the Ethernet function (via 1785-ENET).

Distributed control: Manage Remote I/O racks through the Remote I/O port, suitable for large factories.

Data collection: Collect process data and transmit it to HMI or SCADA via DH+ or 1785-ENET.

Advantage Products:

All items are Distributor Ready-stock Genuine Brand-new Supplying, please inform us if the other conditions are needed, Used, Open-box, Refurbished, etc.

Many Available just wait for you, feel free to ask to get better deal!!!

Bou L(Sales Manager)            

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Doris(Sales Specialist)       

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