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1747-L541
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Other Available Revisions for the 1747-L541 1747-L541//A1747-L541//B1747-L541//C
Common misspellings:
- l747-L541
- 17A7-L541
- 1747-1541
- 1747-L5A1
- 1747-L54l
- 1747L541
The Allen-Bradley 1747-L541 is a SLC 500 5/04 Central Processor Unit (CPU) with 12K user memory. This CPU features fast communication capabilities and a user-selectable key switch on the front panel to select Run, Remote, or Program modes. The 1747-L541 is compatible with the 1747-M13 memory module Series C OS401 or later, which supports up to 64K of user-memory backup. The CPU is equipped with high-speed performance, typically running at 0.90 ms/K. On-board communications for the CPU include DH+ and RS-232. The features of the built-in DH+ channel include high-speed communication and messaging with SLC 500, PLC-2, PLC-5, and ControlLogix processors. The RS-232 channel supports DF1 communication, DH-485, Modbus RTU Master communication with Modbus RTU slave devices, and ASCII I/O for connection to other ASCII devices such as serial printers, weigh scales, and bar code readers. The 1747-L541 is capable of channel-to-channel passthru (DH+ to DF1 full-duplex, DF1 radio modem, DF1 half-duplex Master, or DH-485). The 1747-L541 also has Remote I/O passthru and DeviceNet passthru.
The 1747-L541 is capable of controlling a maximum of 4096 inputs and 4096 outputs. The backplane current at 5V is 1000mA and at 24V is 200 mA. In case of brief power loss, the 1747-L541 provides a program scan hold-up time of 20 ms - 3 seconds to prevent corruption of the system. Exact times depend on the power supply load. There are 30 chassis module slots in the CPU. Bit execution for the 1747-L541 is 0.37 microseconds. The minimum thermal dissipation is 4 Watts for the unit. The CPU is designed with a built-in real-time clock/calendar. It has a 1 ms Selectable Time Interrupt (STI) and a 0.5 ms Discrete Input Interrupt (DII). The 1747-L541 also includes advanced math features such as trigonometry functions, PID, floating point, and compute instruction.
Technical Specifications for 1747-L541
| Manufacturer | Allen-Bradley / Rockwell Automation |
|---|---|
| Series | SLC 500 |
| Part Number | 1747-L541 |
| Product Type | Processor |
| Remote I/O Network | Supported |
| Operating Temperature | 0 to 60 degrees Celsius |
| DH+ Network | Supported |
| Backplane Voltage | 5 Volts DC, 24 Volts DC |
| Backplane Current | 1 Amp at 5 Volts DC, 0 Amps at 24 Volts DC |
| Programming Software | RSLogix 500 Software |
About 1747-L541
The Allen-Bradley 1747-L541 processor is an industrial processor module from the Allen-Bradley/Rockwell Automation SLC 500 series. It is listed in the SLC 5/04 product line within the broader SLC 500 series. The hardware components of the 1747-L541 processor include a memory module, a battery, a jumper, a keyswitch, and LED status indicators. The battery acts as the backup for the processors’ CMOS RAM. The keyswitch is used to change the mode that the 1747-L541 processor is operating in and it is located on the front of the processor directly above the connection ports.
The LED status indicators on the Allen-Bradley 1747-L541 SLC 500 processor are the “RUN” indicator, the “FLT” indicator, the “BATT” indicator, the “FORCE” indicator, the “DH+” indicator, and the “RS-232” indicator. These LEDs make it easy for the users to determine when the 1747-L541 processor is powered on and running properly and they let the users know exactly what kind of errors the processor is experiencing when something goes wrong. The 1747-L541 processor supports the Remote I/O network and it can connect to other devices on this network through a Belden 9463 cable. It also supports backplane voltage ratings of 5 Volts DC or 24 Volts DC, and it can draw 1 Amp of backplane current at 5 Volts DC but no current at 24 Volts DC. Its operating temperature range is 0 to 60 degrees Celsius.
The 1747-L541 processor is manufactured by Allen-Bradley in the SLC 5/04 line of the SLC 500 series. It can communicate through the Remote I/O industrial network.
