1747-L542 AB
1747-L542 is an SLC 500 SLC 5/04 modular processing unit manufactured by Allen Bradley/Rockwell Automation. Can handle 32 keywords, of which 4 are used to store data and 28 are used to store programs and data. The backplane current of the 1747-L542 module is 1 ampere at 5 volts DC and 175 milliamperes at 24 volts DC. This module comes with an RS-232 port and a DH+port for communication purposes. It also has LED status indicating CPU failure, low battery power, operation, RS-232, DH+, and forced I/O. The processor has an acceleration of 2.5G at 57-2000 Hz, a displacement of 0.015 inches, peak to peak, and a running impact of 30G at 5-57 Hz. In addition, it also has an absolute maximum of 4096 discrete outputs and 4096 independent inputs, with a maximum local analog I/O of 480.
The Allen Bradley 1747-L542 processor has a maximum of 3 local I/O chassis and a total of 30 slots in the local I/O chassis. The input and output scanning time is 0.255 milliseconds, and the typical program scanning time is 0.9 milliseconds for each keyword. It also has a bit execution time of 0.37 milliseconds and a program scan hold time of 20 milliseconds -3 seconds after a power outage. However, the power scan hold time depends on the load of the power supply. This module uses flash EPROM for memory backup, while the processor’s 32 KB RAM is battery backed. Its operating temperature range is between 32-140 degrees Fahrenheit, storage temperature range is -40 to 185 degrees Fahrenheit, and non condensing environment relative humidity is 5-95%. There are a total of 30 slots in the local I/O chassis.
technical specifications
Brand Allen Bradley/Rockwell Automation
Series SLR 500
Part number 1747-L542
Module type SLC 5/04 processor
Input 4096
Output 4096
Analog Input Output 480
Communication DH+, RS-232
Backup Memory Flash
3 input/output boxes
Manufacturing region * United States
UNSPSC 32151705
Type PLC processor module
Description:
This Allen Bradley SLC 500 5/04 processor is a controller module for SLC 500 modular hardware. Equipped with 32KB memory size and communication interfaces such as DH+and RS232 communication ports. It has an IO capacity of 4096 I/O and comes with LED indicators. Its program scan time is 0.9 milliseconds per word and uses flash EPROM as its memory backup.
