1747-L20C
The Allen-Bradley L20C is a SLC 500 Fixed hardware style controller. This module features a 1K Instruction Capacity and bit execution of 4 microseconds and typical scan time of 8 milliseconds/1K. It has Twelve (12) 24VDC sink inputs, Eight (8) AC/DC Relay outputs. It has embedded high-speed inputs. This controller assembly requires 120 / 240VAC input voltage.
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Technical specifications for 1747-L20C
| Manufacturer | Rockwell Automation |
|---|---|
| High-Speed Counter | Supported |
| Part Number/Catalog No. | 1747-L20C |
| Brand | Allen-Bradley |
| Product Description: | SLC 500 Fixed style hardware controller |
| Discrete inputs: | Twelve (12) 24VDC sink inputs |
| Discrete outputs: | Eight (8) AC/DC Relay outputs |
| Indicators: | POWER, PC RUN, CPU FAULT, FORCED I/O, and BATTERY LOW |
| Program memory | 1K |
| Memory Type: | Capacitor-backed RAM memory |
| Typical scan time: | 8 milliseconds/1K |
| Bit execution: | 4 microseconds |
| Power Supply Operating Voltage | 85-265 VAC, 47-63 Hz |
| Power Supply Fuse Protection | 1.25A |
| Series | SLC 500 |
| Module Type | Fixed Controller |
| Inputs | (12) 24 V DC Sink |
| Outputs | 8 AC/DC Relay |
| Line Power | 120-240 Volts AC |
| User Power | 24 Volts - 200 milliamps |
| Cable | Belden 9463 |
| Connectors | 6-Pin Phoenix Connector |
| Weight | 0.37 pounds (168 grams) |
| Dimensions | 5.72 x 1.37 x 5.15 inches |
| Operating Temperature | 0-60 Celsius |
| UPC | 10662468325766 |
The Allen-Bradley 1747-L20C is a fixed style hardware controller. This module is part of the SLC 500 product family. It comes with embedded input and output channels, specifically Twelve (12) 24VDC sink inputs and Eight (8) AC/DC Relay outputs. Additionally, it has high-speed counter capability, allowing the controller to be used in industrial counting applications, typically required in the manufacturing industry.
The 1747-L20C requires a nominal 120 / 240VAC supply voltage to operate while the applicable input voltage range is 85-264 VAC with input frequency range of 47-63 Hz. This power supply has a built-in load-dependent hold-up time of 20 milliseconds to 700 milliseconds. It comes with an integrated fuse for line protection. The 1747-L20C is designed to withstand an inrush current rating of 30 Amperes, maximum.
The 1747-L20C has 1K Instruction Capacity program memory that is capacitor backed-up. The embedded processor has a typical scan time of 8 milliseconds/1K with bit execution speed of 4 microseconds. The modules memory backup options includes use of a EEPROM or UVPROM module. It has built-in LED indicators composed of POWER, PC RUN, CPU FAULT, FORCED I/O, and BATTERY LOW.
Like most controllers in the series, it supports a selectable 8K, high-speed counter capability. The 1747-L20C’s operational voltage is between 100 and 240V AC with 50VA of operational power and it provides 1.25A fuse protection at a 120-240V AC voltage range. The 1747-L20C has a 1K instruction program memory and offers users either the EEPROM or UVPROM backup option. Its maximum load-dependent delay time between scans is 20-700ms. It uses the base DH-485 communication port which acts only in the receiving capacity (slave) for communication and it displays the controller’s status through the LED indicators. The 1747-L20C offers the standard NEMA ICS 2-230 noise immunity rating and it is UL and CSA-certified. When operational, the 1747-L20C has a 30G shock rating at a 10-500Hz withstand. Its functional temperature range is between 0 and 60 0C at 5-95% non-condensing humidity.
| Revision Part # | Also known as | |
|---|---|---|
| 1747-L20C Ser A | 1747-L20C/A, Series A, Rev A | Request a quote |
| 1747-L20C Ser B | 1747-L20C/B, Series B, Rev B | Request a quote |
| 1747-L20C Ser C | 1747-L20C/C, Series C, Rev C | Request a quote |
| Don't see your particular revision? Contact us now. | ||
- 1746-L20C
- 1747-120C
- 1747-L2OC
- 1747120C
- 1747L20C
- 1747L2OC
- 17A7-L20C
- 17A7L20C
- L747-L20C
- L747L20C
- L7A7-12OC
- L7A712OC
Our highly skilled technicians can repair your SLC 500 1747-L20C. All of our repairs come with a 1 Year Warranty. Please contact us for additional information.
What are the embedded I/Os of the 1747-L20C?
The 1747-L20C has Twelve (12) 24VDC sink inputs, Eight (8) AC/DC Relay outputs.
What is the capacity of the module’s embedded memory?
The 1747-L20C has an embedded 1K Instruction Capacity.
Does this module support high-speed counter inputs?
Yes. It can accommodate high-speed counters.
The Allen-Bradley 1747-L20C is a SLC 500 Fixed Controller. This Fixed Controller has (12) 24 V DC Sink Inputs, 8 AC/DC Relay Outputs and 120-240 Volts AC Line Power.
With 12 inputs, this module has the least of the fixed controllers. Nonetheless, this is still appropriate for the right application.
The lowest number of outputs available from the fixed SLC 500 family, still just as useful in the right system.
This SLC 500 unit is compatible with a high speed counter.
The 1747-L20C is an SLC500 fixed hardware style controller. This controller comes with embedded Twelve (12) 24VDC sink inputs, Eight (8) AC/DC Relay outputs as well as support for high-speed counter inputs. Compared to the 1747-L40C, the embedded I/O of the 1747-L20 is half-lesser compared to the 1747-L40C. Ideally, with the embedded I/O capacity of the 1747-L20C, it may only be used in micro automation requirements.