1785-L20E - In Stock | Allen Bradley PLC PLC 5

1785-L20E

Rated 4.7 with 9 reviews

DO Supply is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with DO Supply's 1-year warranty

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.


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1785-L20E

Revisions: Ser A Ser B Ser C Ser D Ser E Ser F 
Description: The Allen-Bradley 1785-L20E is an Allen-Bradley PLC5 Controller. This controller has 16K words of user memory, supports 512 (any mix) or 512 in + 512 out (complementary). It has embedded communication ports such as One (1) DH+ (Fixed), One (1) DH+/Remote I/O (Adapter or Scanner) One (1) serial port, configurable for RS-232 and 423 and RS-422A standards and One (1) Ethernet communication port.
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Request a quote for 1785-L20E

Description: The Allen-Bradley 1785-L20E is an Allen-Bradley PLC5 Controller. This controller has 16K words of user memory, supports 512 (any mix) or 512 in + 512 out (complementary). It has embedded communication ports such as One (1) DH+ (Fixed), One (1) DH+/Remote I/O (Adapter or Scanner) One (1) serial port, configurable for RS-232 and 423 and RS-422A standards and One (1) Ethernet communication port.

DO Supply is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with DO Supply's 1-year warranty

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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credit cards
better business bureau
Revisions: Ser A Ser B Ser C Ser D Ser E Ser F 

Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via UPS, DHL, and TNT
Repairs: We offer repair service for the 1785-L20E.
Exchange: Exchange credit for your defective unit available.
Conditions: We sell preowned surplus and refurbished parts.

To speak to a sales representative for pricing & lead time:


Rated 4.7 with 9 reviews

    Technical Specifications for 1785-L20E

ManufacturerRockwell Automation
Power Supply:1771-P4S, -P6S, -P4S1, -P6S1
Power Dissipation:12 W
Backplane current load:2.3 A
Embedded Communication interfaces:1 DH+ (Fixed) 1 DH+/Remote I/O (Adapter or Scanner) 1 serial port, configurable for RS-232 and 423 and RS-422A standards; Ethernet
Memory:16 Kwords
Battery:1770-XYC
Maximum Number of I/O Racks:4 (0-3)
Remote I/O:12 chassis
Operating Temperature:EC 60068-2-1 (Test Ad, Operating Cold), IEC 60068-2-2 (Test Bd, Operating Dry Heat), IEC 60068-2-14 (Test Nb, Operating Thermal Shock): 0...60 o C (32...140 o F)
Non-Operating Temperature:IEC 60068-2-1 (Test Ab, Un-packaged Nonoperating Cold), IEC 60068-2-2 (Test Bc, Un-packaged Nonoperating Dry Heat), IEC 60068-2-14 (Test Na, Un- packaged Nonoperating Thermal Shock): –40...85 o C (– 40...185 o F)
Product Type:Programmable Logic Controller
Product Family:PLC5
BrandAllen-Bradley
Part Number/Catalog No.1785-L20E
Module TypeStandard Processor
ProcessorPLC-5/20E
Max User Memory Words16 Kilowords
Battery-Backed Static RAMYes
EEPROM Program Backup Option (using 1785-ME16, -ME32, -ME64, and -M100)Yes
Protected MemoryNo
Max Total I/O512 (any mix) or 512 in + 512 out (complementary)
Max Analog I/O512
I/O Scan Time Per Rack10 ms at 57.6 kbits/s, 7 ms at 115.2 kbits/s, 3 ms at 230.4 mbits/s
Max I/O Chassis Total13
Max I/O Chassis Extended Local0
Max I/O Chassis Universal Remote12
RS-232-C/422-A/423- A Ports1
Control Coprocessor Expansion PortYes
UPC10612598126429
ManufacturerRockwell Automation
Power Supply:1771-P4S, -P6S, -P4S1, -P6S1
Power Dissipation:12 W
Backplane current load:2.3 A
Embedded Communication interfaces:1 DH+ (Fixed) 1 DH+/Remote I/O (Adapter or Scanner) 1 serial port, configurable for RS-232 and 423 and RS-422A standards; Ethernet
Memory:16 Kwords
Battery:1770-XYC
Maximum Number of I/O Racks:4 (0-3)
Remote I/O:12 chassis
Operating Temperature:EC 60068-2-1 (Test Ad, Operating Cold), IEC 60068-2-2 (Test Bd, Operating Dry Heat), IEC 60068-2-14 (Test Nb, Operating Thermal Shock): 0...60 o C (32...140 o F)
Non-Operating Temperature:IEC 60068-2-1 (Test Ab, Un-packaged Nonoperating Cold), IEC 60068-2-2 (Test Bc, Un-packaged Nonoperating Dry Heat), IEC 60068-2-14 (Test Na, Un- packaged Nonoperating Thermal Shock): –40...85 o C (– 40...185 o F)
Product Type:Programmable Logic Controller
Product Family:PLC5
BrandAllen-Bradley
Part Number/Catalog No.1785-L20E
Module TypeStandard Processor
ProcessorPLC-5/20E
Max User Memory Words16 Kilowords
Battery-Backed Static RAMYes
EEPROM Program Backup Option (using 1785-ME16, -ME32, -ME64, and -M100)Yes
Protected MemoryNo
Max Total I/O512 (any mix) or 512 in + 512 out (complementary)
Max Analog I/O512
I/O Scan Time Per Rack10 ms at 57.6 kbits/s, 7 ms at 115.2 kbits/s, 3 ms at 230.4 mbits/s
Max I/O Chassis Total13
Max I/O Chassis Extended Local0
Max I/O Chassis Universal Remote12
RS-232-C/422-A/423- A Ports1
Control Coprocessor Expansion PortYes
UPC10612598126429
s

About 1785-L20E

The Allen-Bradley 1785-L20E is a PLC5 processor. This module is a major component of the legacy PLC5 product category. This controller is a single slot module that is compatible with 1771-A1B, -A2B, A3B, -A3B1, or the -A4B chassis. This controller is ideal for use medium range automation requirements as it supports a total of 512 I/O (mixed) and 512 input / output (complementary).

The 1785-L20E has a built-in volatile memory that amounts to 16KWords, which is maintained by a Lithium battery with catalog number 1785-XYC. This battery provides the necessary energy to maintain the contents of the controller’s SRAM to allow the controller to continuously function. For backup and increased system availability, non-volatile memory back up devices may be installed such as 1785-ME16 with 16Kwords, 1785-ME32 with 32Kwords, 1785-ME64 with 64 Kwords and 1785-ME100 with 100Kwords.

The 1785-L20E’s embedded communication interfaces include One (1) DH+ dedicated interface, One (1) DH+/Remote I/O (Adapter or Scanner) combination interface, One (1) serial port that supports RS-232, 423 and RS-422A standards and One (1) Ethernet channel that supports 10/100 Mbps transmission speed.

The 1785-L20E supports installation of Thirteen (13) chassis, overall. This includes the local rack where the controller is installed and additional Twelve (12) racks that me be used as distributed I/O racks.

The 1785-L20E supports a variety of data types such as Immediate or program constant, Integer, Float, Block, Message, PID, String and SFC status.

The 1785-L20E PLC -5/20E Ethernet/IP Programmable Controller by Allen-Bradley is a programmable controller with 16K word SRAM processor. This controller is installed in a 1771 I/O chassis’ controller slot. It is primarily used for processing user logic and for controlling the inputs and outputs of field devices connected to it. It has 512 maximum I/O link capacity with 512 mixed, or 512 in + 512 out complementary. The controller’s supported I/O Rack capacity is Four (4) and a Remote I/O chassis capacity of 12. The controller is installed on either the 1771-A1B, -A2B, A3B, -A3B1, or the -A4B I/O chassis, and draws a chassis backplane current of 3.6A.

The controller uses an Allen Bradley 1770-XYC Lithium battery module. The 1785-L20E has a maximum I/O scan time of 10 milliseconds between remote I/O adapter at 57.6 kbps scan speed, and 3 miliseconds between remote I/O adapter communication at 230.4 kbps scan speed, and it supports the half slot, the single slot, and the double slot addressing system.

The 1785-L20E controller also supports the Allen Bradley Bulletin 1771 I/O 8, 16, and the 32-point, and intelligent modules, and it comes with an internal Calendar/Clock with 1 program per scan accuracy and a maximum variation of plus or minus 5 minutes per month. The controller comes with 1 fixed Data Highway Plus (DH+) port with a 25-pin D-shell serial port, which supports standard EIA RS-232C and RS-423 for serial connection, and based 15-pin Ethernet/IP port with 10MB transmission speed, for connecting to devices on the Ethernet network.

The controller’s operating temperature is 32-140 degrees Fahrenheit at 5-95% non-condensing ambient relative humidity, and it will dissipate 65 BTU/hour of maximum heat when operational. The 1785-L20E controller can withstand a 30G shock, with 1G vibration at 10-500 Hertz when operational, and it is keyed in place via pins 40-42, and 54-56. The 1785-L20E weighs approximately 1.43 kilograms (3.2 pounds), and it is CSA, UL, and C-certified.

FAQ for 1785-L20E

What is the price of 1785-L20E?


Submit a quote request, send us an email or call 800-730-0292 for our best price.

Does DO Supply Inc. offer repairs for part 1785-L20E?


Yes. Our highly skilled technicians can repair your 1785-L20E. All our repairs come with a 1 Year Warranty. Please contact us for additional information about our repair process

What is the main difference between the 1785-L20B and 1785-L20E?


The major difference between the Two (2) controllers is that the 1785-L20E has an additional built-in Ethernet interface.

Can I use the Ethernet port for implementing remote I/O architecture?


Yes, it may also be used for connecting to programming workstation and visualization systems.

What is the memory size of the 1785-L20E?


The 1785-L20E has 16Kwords, volatile memory.

Technical Description of 1785-L20E

Allen Bradley PLC 5 PLC-5/20E Standard Processor, 512 Max Analog I/O, 16 Kilowords, 3.6 Amperes Backplane Current (at 5 Volts)

Repair Services for 1785-L20E

Type Lead Time Price Action
Repair Service 2-4 weeks $754cartAdd to Cart

Our highly skilled technicians can repair your 1785-L20E. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions for 1785-L20E

Please refer to the manual for more information about the 1785-L20E such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
1785-L20E Ser A
1785-L20E/A, Series A, Rev A Request Quote
1785-L20E Ser B
1785-L20E/B, Series B, Rev B Request Quote
1785-L20E Ser C
1785-L20E/C, Series C, Rev C Request Quote
1785-L20E Ser D
1785-L20E/D, Series D, Rev D Request Quote
1785-L20E Ser E
1785-L20E/E, Series E, Rev E Request Quote
1785-L20E Ser F
1785-L20E/F, Series F, Rev F Request Quote
Common misspellings:
  • l785-L20E
  • 17b5-L20E
  • 1785-120E
  • 1785-L2oE
  • 1785L20E

Reviews for 1785-L20E

Product Review

"The 1785-L20E is an enhanced PLC5 controller that is part of the PLC5 controller family. This module has very similar features when compared to the 1785-L20B however, the 1785-L20E is installed with an additional Ethernet communication interface to allow the controller to connec to new or existing Ethernet networks. " -DO Supply Tech

Dimensions For 1785-L20E

Size
Input Type
Panel Cutout Height in mm
Panel Cutout Width in mm
Terminal Height in mm
Terminal Width in mm
Terminal Overall Depth in mm
Terminal Mounted Depth in mm

Dimensions For 1785-L20E

Resolutions For 1785-L20E

About

Technical Specifications for 1785-L20E

ManufacturerRockwell Automation
Power Supply:1771-P4S, -P6S, -P4S1, -P6S1
Power Dissipation:12 W
Backplane current load:2.3 A
Embedded Communication interfaces:1 DH+ (Fixed) 1 DH+/Remote I/O (Adapter or Scanner) 1 serial port, configurable for RS-232 and 423 and RS-422A standards; Ethernet
Memory:16 Kwords
Battery:1770-XYC
Maximum Number of I/O Racks:4 (0-3)
Remote I/O:12 chassis
Operating Temperature:EC 60068-2-1 (Test Ad, Operating Cold), IEC 60068-2-2 (Test Bd, Operating Dry Heat), IEC 60068-2-14 (Test Nb, Operating Thermal Shock): 0...60 o C (32...140 o F)
Non-Operating Temperature:IEC 60068-2-1 (Test Ab, Un-packaged Nonoperating Cold), IEC 60068-2-2 (Test Bc, Un-packaged Nonoperating Dry Heat), IEC 60068-2-14 (Test Na, Un- packaged Nonoperating Thermal Shock): –40...85 o C (– 40...185 o F)
Product Type:Programmable Logic Controller
Product Family:PLC5
BrandAllen-Bradley
Part Number/Catalog No.1785-L20E
Module TypeStandard Processor
ProcessorPLC-5/20E
Max User Memory Words16 Kilowords
Battery-Backed Static RAMYes
EEPROM Program Backup Option (using 1785-ME16, -ME32, -ME64, and -M100)Yes
Protected MemoryNo
Max Total I/O512 (any mix) or 512 in + 512 out (complementary)
Max Analog I/O512
I/O Scan Time Per Rack10 ms at 57.6 kbits/s, 7 ms at 115.2 kbits/s, 3 ms at 230.4 mbits/s
Max I/O Chassis Total13
Max I/O Chassis Extended Local0
Max I/O Chassis Universal Remote12
RS-232-C/422-A/423- A Ports1
Control Coprocessor Expansion PortYes
UPC10612598126429
ManufacturerRockwell Automation
Power Supply:1771-P4S, -P6S, -P4S1, -P6S1
Power Dissipation:12 W
Backplane current load:2.3 A
Embedded Communication interfaces:1 DH+ (Fixed) 1 DH+/Remote I/O (Adapter or Scanner) 1 serial port, configurable for RS-232 and 423 and RS-422A standards; Ethernet
Memory:16 Kwords
Battery:1770-XYC
Maximum Number of I/O Racks:4 (0-3)
Remote I/O:12 chassis
Operating Temperature:EC 60068-2-1 (Test Ad, Operating Cold), IEC 60068-2-2 (Test Bd, Operating Dry Heat), IEC 60068-2-14 (Test Nb, Operating Thermal Shock): 0...60 o C (32...140 o F)
Non-Operating Temperature:IEC 60068-2-1 (Test Ab, Un-packaged Nonoperating Cold), IEC 60068-2-2 (Test Bc, Un-packaged Nonoperating Dry Heat), IEC 60068-2-14 (Test Na, Un- packaged Nonoperating Thermal Shock): –40...85 o C (– 40...185 o F)
Product Type:Programmable Logic Controller
Product Family:PLC5
BrandAllen-Bradley
Part Number/Catalog No.1785-L20E
Module TypeStandard Processor
ProcessorPLC-5/20E
Max User Memory Words16 Kilowords
Battery-Backed Static RAMYes
EEPROM Program Backup Option (using 1785-ME16, -ME32, -ME64, and -M100)Yes
Protected MemoryNo
Max Total I/O512 (any mix) or 512 in + 512 out (complementary)
Max Analog I/O512
I/O Scan Time Per Rack10 ms at 57.6 kbits/s, 7 ms at 115.2 kbits/s, 3 ms at 230.4 mbits/s
Max I/O Chassis Total13
Max I/O Chassis Extended Local0
Max I/O Chassis Universal Remote12
RS-232-C/422-A/423- A Ports1
Control Coprocessor Expansion PortYes
UPC10612598126429

About 1785-L20E

The Allen-Bradley 1785-L20E is a PLC5 processor. This module is a major component of the legacy PLC5 product category. This controller is a single slot module that is compatible with 1771-A1B, -A2B, A3B, -A3B1, or the -A4B chassis. This controller is ideal for use medium range automation requirements as it supports a total of 512 I/O (mixed) and 512 input / output (complementary).

The 1785-L20E has a built-in volatile memory that amounts to 16KWords, which is maintained by a Lithium battery with catalog number 1785-XYC. This battery provides the necessary energy to maintain the contents of the controller’s SRAM to allow the controller to continuously function. For backup and increased system availability, non-volatile memory back up devices may be installed such as 1785-ME16 with 16Kwords, 1785-ME32 with 32Kwords, 1785-ME64 with 64 Kwords and 1785-ME100 with 100Kwords.

The 1785-L20E’s embedded communication interfaces include One (1) DH+ dedicated interface, One (1) DH+/Remote I/O (Adapter or Scanner) combination interface, One (1) serial port that supports RS-232, 423 and RS-422A standards and One (1) Ethernet channel that supports 10/100 Mbps transmission speed.

The 1785-L20E supports installation of Thirteen (13) chassis, overall. This includes the local rack where the controller is installed and additional Twelve (12) racks that me be used as distributed I/O racks.

The 1785-L20E supports a variety of data types such as Immediate or program constant, Integer, Float, Block, Message, PID, String and SFC status.

The 1785-L20E PLC -5/20E Ethernet/IP Programmable Controller by Allen-Bradley is a programmable controller with 16K word SRAM processor. This controller is installed in a 1771 I/O chassis’ controller slot. It is primarily used for processing user logic and for controlling the inputs and outputs of field devices connected to it. It has 512 maximum I/O link capacity with 512 mixed, or 512 in + 512 out complementary. The controller’s supported I/O Rack capacity is Four (4) and a Remote I/O chassis capacity of 12. The controller is installed on either the 1771-A1B, -A2B, A3B, -A3B1, or the -A4B I/O chassis, and draws a chassis backplane current of 3.6A.

The controller uses an Allen Bradley 1770-XYC Lithium battery module. The 1785-L20E has a maximum I/O scan time of 10 milliseconds between remote I/O adapter at 57.6 kbps scan speed, and 3 miliseconds between remote I/O adapter communication at 230.4 kbps scan speed, and it supports the half slot, the single slot, and the double slot addressing system.

The 1785-L20E controller also supports the Allen Bradley Bulletin 1771 I/O 8, 16, and the 32-point, and intelligent modules, and it comes with an internal Calendar/Clock with 1 program per scan accuracy and a maximum variation of plus or minus 5 minutes per month. The controller comes with 1 fixed Data Highway Plus (DH+) port with a 25-pin D-shell serial port, which supports standard EIA RS-232C and RS-423 for serial connection, and based 15-pin Ethernet/IP port with 10MB transmission speed, for connecting to devices on the Ethernet network.

The controller’s operating temperature is 32-140 degrees Fahrenheit at 5-95% non-condensing ambient relative humidity, and it will dissipate 65 BTU/hour of maximum heat when operational. The 1785-L20E controller can withstand a 30G shock, with 1G vibration at 10-500 Hertz when operational, and it is keyed in place via pins 40-42, and 54-56. The 1785-L20E weighs approximately 1.43 kilograms (3.2 pounds), and it is CSA, UL, and C-certified.

FAQ for 1785-L20E

What is the price of 1785-L20E?


Submit a quote request, send us an email or call 800-730-0292 for our best price.

Does DO Supply Inc. offer repairs for part 1785-L20E?


Yes. Our highly skilled technicians can repair your 1785-L20E. All our repairs come with a 1 Year Warranty. Please contact us for additional information about our repair process

What is the main difference between the 1785-L20B and 1785-L20E?


The major difference between the Two (2) controllers is that the 1785-L20E has an additional built-in Ethernet interface.

Can I use the Ethernet port for implementing remote I/O architecture?


Yes, it may also be used for connecting to programming workstation and visualization systems.

What is the memory size of the 1785-L20E?


The 1785-L20E has 16Kwords, volatile memory.

Technical Description of 1785-L20E

Allen Bradley PLC 5 PLC-5/20E Standard Processor, 512 Max Analog I/O, 16 Kilowords, 3.6 Amperes Backplane Current (at 5 Volts)
Repairs
Type Lead Time Price Action
Repair Service 2-4 weeks $754cartAdd to Cart

Our highly skilled technicians can repair your 1785-L20E. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Type Lead Time Price Action
Repair Service 2-4 weeks $754cartAdd to Cart

Our highly skilled technicians can repair your 1785-L20E. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions

Please refer to the manual for more information about the 1785-L20E such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
1785-L20E Ser A
1785-L20E/A, Series A, Rev A Request Quote
1785-L20E Ser B
1785-L20E/B, Series B, Rev B Request Quote
1785-L20E Ser C
1785-L20E/C, Series C, Rev C Request Quote
1785-L20E Ser D
1785-L20E/D, Series D, Rev D Request Quote
1785-L20E Ser E
1785-L20E/E, Series E, Rev E Request Quote
1785-L20E Ser F
1785-L20E/F, Series F, Rev F Request Quote

Common misspellings:
  • l785-L20E
  • 17b5-L20E
  • 1785-120E
  • 1785-L2oE
  • 1785L20E
PDF
Reviews

Reviews for 1785-L20E

Product Review

"The 1785-L20E is an enhanced PLC5 controller that is part of the PLC5 controller family. This module has very similar features when compared to the 1785-L20B however, the 1785-L20E is installed with an additional Ethernet communication interface to allow the controller to connec to new or existing Ethernet networks. " -DO Supply Tech