1747-L543

Technical specifications

Manufacturer

Allen-Bradley

Manufacturer part no.

1747-L543

Type

SLC 500 processor

Application

PLC controller

Used with

SLC 500 1746 chassis

Processor

SLC 5/04

Memory (words)

64 K

I/O capacity, max

4096 discrete inputs/4096 discrete outputs

Local system, max

3 chassis / 30 slots

Programming instructions

107

Typical scan time

0.9 ms/K (typical for a 1 K ladder logic program)

Bit execution (XIC)

0.37 µs

Programming software

RSLogix 500

Communication options

DH485; RS-232 (DF1 full-duplex, DF1 half-duplex master/slave, DF1 radio modem, DH-485 or ASCII); Data Highway Plus; Ethernet TCP/IP through a 1761-NET-ENI interface; ControlNet through a 1747-KFC15; DeviceNet through a 1761-NET-DNI

Power supply loading at 5V dc

1.0 A

Power supply loading at 24V dc

0 mA (processors made before April 2002 draw 200 mA; check the label)

Program scan hold-up time after loss of power

20 ms...3 s (dependent on power supply loading)

Noise immunity

NEMA Standard ICS 2-230

Vibration

Displacement: 0.015 in., peak-to-peak at 5-57 Hz; Acceleration: 2.5 g at 57...2000 Hz

Shock, operating

30 g

Ambient temperature rating, operating

0...60 °C (32...140 °F)

Ambient temperature rating, storage

-40...85 °C (-40...185 °F)

Humidity

5 to 95% without condensation

Technical documents (1)

• Rockwell Automation publication 1747-IN009 (specifications)

Key features

• 64 K words of memory
• Maximum 4096 discrete inputs and 4096 discrete outputs
• 107 programming instructions
• Bit execution (XIC) of 0.37 µs
• Programmed with RSLogix 500 software

About the Allen-Bradley 1747-L543

The Allen-Bradley 1747-L543 is the SLC 5/04 64K Controller, according to Rockwell Automation publication 1747-IN009. Rockwell gives it 64 K words of memory, a maximum of 4096 discrete inputs and 4096 discrete outputs, a local system of up to 3 chassis / 30 slots, and 107 programming instructions. Typical scan time is 0.9 ms/K for a 1 K ladder logic program, and it loads the power supply by 1.0 A at 5V dc. Rockwell lists its lifecycle status as Discontinued.

What is the 1747-L543 used for?

The 1747-L543 is the processor of an SLC 500 system, running the user program in the local chassis and communicating over the networks Rockwell lists. These include DH485, RS-232, Data Highway Plus, and Ethernet TCP/IP, ControlNet or DeviceNet through the interface modules named in the publication. Rockwell rates it for operation at 0...60 °C and 5 to 95% humidity without condensation, with vibration and shock ratings given in publication 1747-IN009.

Lifecycle and successor

Discontinued.

Before you order

What to photograph or confirm so the right unit is quoted.

Check that the catalog number 1747-L543 is printed on the module label, and note the series letter and firmware revision shown there. Send a photo of the label so we can confirm the part before you order.