Allen-Bradley 1747-L531 SLC 500 5/03 CPU Module

Description

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. 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.

Technical Specifications for 1747-L531

• Manufacturer: Rockwell Automation
• Brand: Allen-Bradley
• Part Number/Catalog No.: 1747-L531
• Series: SLC 500
• Inputs: 4096
• Module Type: SLC 5/03 Processor
• Outputs: 4096
• Analog I/O: 180
• Memory: Up to 8 KB, Battery Backed-RAM
• Program Scan Time: 1 ms/K
• User Memory: 8,000 Words
• I/O Chassis: 3
• Chassis Module Slots: 30
• I/O Scan Time: 0.225 milliseconds
• Communication: DH485, RS-232
• Backup Memory: 1747-M13
• Ambient Temperature: 0 to 60 degrees Celsius
• Backplane Current (5 Volts DC): 500 milliamps
• Battery Back-up Memory: Yes; 1747-BA
• UPC: 10662072666279