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Allen Bradley | SLC-500 | 1747-L531 | Image

Allen Bradley | SLC-500 | 1747-L531 | Image

Includes a PDF Electric and Supply warranty.

(Never Used)


1 In Stock

3 Yr PDF Supply warranty

What is Surplus?



3 In Stock

2 Yr PDF Supply Warranty

What is Refurbished?

Repair Service


5-10 Days

2 Yr PDF Supply warranty


Other Available Revisions for the 1747-L531 1747-L531/A1747-L531/B1747-L531/C1747-L531/D1747-L531/E

Common misspellings:
  • l747-L531
  • 17A7-L531
  • 1747-1531
  • 1747-L53l
  • 1747L531


The Allen-Bradley 1747-L531 is an SLC 500 5/03 CPU from the SLC 500 product family of programmable controllers. This CPU has a maximum of 4096 inputs and 4096 outputs. The 1747-L531 has 30 module spaces in the local chassis and a maximum of 3 local chassis.  The hardware components of the CPU include a memory module, keyswitch, and an Operating System download protection jumper which should not be moved unless updating the processor Operating System firmware. On the front panel, the 1747-L531 features a DH-485 Channel 1 port and a DH-485/DF1/ASCII Channel 0 port. There are also LED indicators to relate operational status information.

The 1747-L531 has standard battery-supported RAM and flash back-up memory. The 1747-L531 has an 8K words user memory: 4K words for data and program and 4K words for data only. The backplane current for the 1747-L531 at 5V is 500mA and at 24V is 175 mA. The CPU requires 1ms for program scan time and 0.225ms for I/O scan time. Additionally, the 1747-L531 has a maximum of 480 local analog I/O. With the 1747-L531, it is easy to incorporate a 1747-SN remote I/O scanner module. This will aid in configuring I/O on a universal remote I/O link. Another option is to add the 1747-SDN DeviceNet module to ease the configuration of I/O on a DeviceNet network.  Between communication channels, the 1747-L531 has 500V DC isolation and 1500V AC isolation between the backplane and the I/O. In addition, the CPU has a dielectric withstand rating of 1500V AC and has the EN50082-2 and EN50081-2 industrial emission certification.

The 1747-L531 operates at a temperature range of 0-60º C (32-140º F) with a relative humidity between 5-95% in a non-condensing environment. Vibration rating for the 1747-L531 is 1.0g at 5-2000 Hz while in operation and 2.5g at 5-2000Hz while not in operation. The shock rating of the 1747-L531 is 30g or 3 pulses in 11ms.

Allen Bradley SLC 5/03 Proc., 8K Mem., AB 1747-L 1747-L5 1747-L53

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