1747-L542 | SLC 5/04 32K Controller

The 1747-L542 SLC is an SLC 5/03 controller. This controller is one of the Three (3) controllers under the 1747-L52 SLC 5/03 category. This controller is the mid-range controller of SLC 5/03 which has 32 KB user memory while still capable of handling 4096 Input and outputs.
The 1747-L542 is used with the modular style hardware. This processor is installed to slot Zero (0) of any SLC chassis such as 1746-A2, 1746-A7, 1746-A10 and 1746-A13. It is powered though the power supplied in the backplane, provided by the system power supply installed at the leftmost area of the chassis.
This SLC processor has integrated RS232 and Data Highway Plus (DH+) communication port which allows this processor to be communicated with computer-based control systems such as Human Machine Interface (HMI) or Supervisory Control and Data Acquisition (SCADA). This processor may also be used for messaging or implement pass-through communication for other Programable Logic Controller (PLC) such as PLC 5, CompactLogix and ControlLogix platforms.
Configuration of this controller is made with RSLogix 500 programming software while communication setup is made with RSLinx configuration tool that comes along the programming software.
This processor is built with status indicators such as Run, CPU Fault, Forced I/O, Battery Low, RS-232 and DH+ LEDs. It is also provided with a key for switching the processor’s operating mode. This operating mode may be switched through the provided key or via the software. If modifications are needed, the hardware key must be set to REM to allow full software control.