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1785-L46B

 
 
 
 
 
Rated 4.6 with 7 reviews

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1785-L46B

Revisions: Ser A Ser B Ser C Ser D Ser E 
Description: Allen Bradley PLC 5 PLC-5/46 Standard Processor, 2048 Max Analog I/O, 48 Kilowords, 3.3 Amperes Backplane Current (at 5 Volts), Protected Memory
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Description: Allen Bradley PLC 5 PLC-5/46 Standard Processor, 2048 Max Analog I/O, 48 Kilowords, 3.3 Amperes Backplane Current (at 5 Volts), Protected Memory

Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via DHL, UPS, Fedex, and TNT
Repairs: We offer repair service for the 1785-L46B.
Exchange: Exchange credit for your defective unit available.

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Rated 4.6 with 7 reviews

    Technical Specifications for 1785-L46B

ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.1785-L46B
Module TypeStandard Processor
ProcessorPLC-5/46
Max User Memory Words48 Kilowords
Battery-Backed Static RAMYes
EEPROM Program Backup Option (using 1785-ME16, -ME32, -ME64, and -M100)Yes
Protected MemoryYes
Max Total I/O2048 (any mix) or 2048 in + 2048 out (complementary)
Max Analog I/O2048
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 Total61
Max I/O Chassis Extended Local0
Max I/O Chassis Universal Remote32 Max. Per I/O Link
RS-232-C/422-A/423- A Ports1
Control Coprocessor Expansion PortYes
ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.1785-L46B
Module TypeStandard Processor
ProcessorPLC-5/46
Max User Memory Words48 Kilowords
Battery-Backed Static RAMYes
EEPROM Program Backup Option (using 1785-ME16, -ME32, -ME64, and -M100)Yes
Protected MemoryYes
Max Total I/O2048 (any mix) or 2048 in + 2048 out (complementary)
Max Analog I/O2048
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 Total61
Max I/O Chassis Extended Local0
Max I/O Chassis Universal Remote32 Max. Per I/O Link
RS-232-C/422-A/423- A Ports1
Control Coprocessor Expansion PortYes

About 1785-L46B

The 1785-L46B PLC-5-46 is an Enhanced Programmable Controller with Protected Memory by Allen-Bradley which is a chassis-based enhanced device, with 100K word user memory, which centrally coordinates the activities of most of the field devices that are connected to it. It has 2048 maximum I/O capacity in any combination, or 2048 input +2048 output (complimentary), and is designed to communicate with Allen-Bradley devices that are connected to it on the Data Highway Plus (DH+) network via the channel 1A DH+/Serial communication port that it also uses for the remote I/O network (with Default configuration for Remote I/O Scanner). The 1785-L46B has a based configured 25 pin D-shell serial port on its front panel for RS-232-C and RS-423 serial connection, and it comes with a remote I/O channel on the front panel that you can configure for scanner mode to read and write I/O information from any I/O devices remotely connected it. It is installed on the 1771 I/O chassis, and it draws a 3.3A backplane current at 5V DC, with a thermal dissipation of 59.04 BTU/hr. The 1785-L46B also has an internal clock with a variation of ± 5 minutes per month at 60 oC, with a timing accuracy of 1 program per scan, and a maximum I/O scan time of 0.5ms for the extended-local I/O adapter, and a 10ms scan time for the remote I/O rack at 57.6 kbps of speed.


The 1785-L46B supports the 1771 intelligent module, 8-points, 16-point, and 32-point I/O modules, and addresses connected hardware through the 2-slot, the 1-slot, or the ½-slot addressing modes. It is keyed to the Chassis via a connection between pins 40 and 42, 54 and 56 of the backplane top connector, and it can provide voltage isolation between the communication ports, and between the communication port and the relay cartridge tested at 500V and 1000V for 60 seconds. It supports Relay Cartridge use and is compatible with the 1785-ME32, 1785-ME64, and 1785-M10 battery-backed memory module. The 1785-L46B has a working temperature range around 0-60 oC (32–140 oF) at a relative humidity of 5-95%, without condensation, and its storage temperature range is –40-85 oC (–40-185 oF). It can withstand a 30G shock and a 1G vibration at 10-500Hz, and it comes in an open enclosure. It weighs about 1.42 kg (3.1lbs) and is UL, CSA, C-TICK, and CE-certified.

Repair Services for 1785-L46B

Type Lead Time Price Action
Repair Service 2-4 weeks $2345cartAdd to Cart

Our highly skilled technicians can repair your 1785-L46B. 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-L46B

Please refer to the manual for more information about the 1785-L46B such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
1785-L46B Ser A
1785-L46B/A, Series A, Rev A Request Quote
1785-L46B Ser B
1785-L46B/B, Series B, Rev B Request Quote
1785-L46B Ser C
1785-L46B/C, Series C, Rev C Request Quote
1785-L46B Ser D
1785-L46B/D, Series D, Rev D Request Quote
1785-L46B Ser E
1785-L46B/E, Series E, Rev E Request Quote
Common misspellings:
  • l785-L46B
  • 17b5-L46B
  • 1785-146B
  • 1785-LA6B
  • 1785-L468
Technical Specifications
ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.1785-L46B
Module TypeStandard Processor
ProcessorPLC-5/46
Max User Memory Words48 Kilowords
Battery-Backed Static RAMYes
EEPROM Program Backup Option (using 1785-ME16, -ME32, -ME64, and -M100)Yes
Protected MemoryYes
Max Total I/O2048 (any mix) or 2048 in + 2048 out (complementary)
Max Analog I/O2048
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 Total61
Max I/O Chassis Extended Local0
Max I/O Chassis Universal Remote32 Max. Per I/O Link
RS-232-C/422-A/423- A Ports1
Control Coprocessor Expansion PortYes
ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.1785-L46B
Module TypeStandard Processor
ProcessorPLC-5/46
Max User Memory Words48 Kilowords
Battery-Backed Static RAMYes
EEPROM Program Backup Option (using 1785-ME16, -ME32, -ME64, and -M100)Yes
Protected MemoryYes
Max Total I/O2048 (any mix) or 2048 in + 2048 out (complementary)
Max Analog I/O2048
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 Total61
Max I/O Chassis Extended Local0
Max I/O Chassis Universal Remote32 Max. Per I/O Link
RS-232-C/422-A/423- A Ports1
Control Coprocessor Expansion PortYes
About

The 1785-L46B PLC-5-46 is an Enhanced Programmable Controller with Protected Memory by Allen-Bradley which is a chassis-based enhanced device, with 100K word user memory, which centrally coordinates the activities of most of the field devices that are connected to it. It has 2048 maximum I/O capacity in any combination, or 2048 input +2048 output (complimentary), and is designed to communicate with Allen-Bradley devices that are connected to it on the Data Highway Plus (DH+) network via the channel 1A DH+/Serial communication port that it also uses for the remote I/O network (with Default configuration for Remote I/O Scanner). The 1785-L46B has a based configured 25 pin D-shell serial port on its front panel for RS-232-C and RS-423 serial connection, and it comes with a remote I/O channel on the front panel that you can configure for scanner mode to read and write I/O information from any I/O devices remotely connected it. It is installed on the 1771 I/O chassis, and it draws a 3.3A backplane current at 5V DC, with a thermal dissipation of 59.04 BTU/hr. The 1785-L46B also has an internal clock with a variation of ± 5 minutes per month at 60 oC, with a timing accuracy of 1 program per scan, and a maximum I/O scan time of 0.5ms for the extended-local I/O adapter, and a 10ms scan time for the remote I/O rack at 57.6 kbps of speed.


The 1785-L46B supports the 1771 intelligent module, 8-points, 16-point, and 32-point I/O modules, and addresses connected hardware through the 2-slot, the 1-slot, or the ½-slot addressing modes. It is keyed to the Chassis via a connection between pins 40 and 42, 54 and 56 of the backplane top connector, and it can provide voltage isolation between the communication ports, and between the communication port and the relay cartridge tested at 500V and 1000V for 60 seconds. It supports Relay Cartridge use and is compatible with the 1785-ME32, 1785-ME64, and 1785-M10 battery-backed memory module. The 1785-L46B has a working temperature range around 0-60 oC (32–140 oF) at a relative humidity of 5-95%, without condensation, and its storage temperature range is –40-85 oC (–40-185 oF). It can withstand a 30G shock and a 1G vibration at 10-500Hz, and it comes in an open enclosure. It weighs about 1.42 kg (3.1lbs) and is UL, CSA, C-TICK, and CE-certified.

Repairs
Type Lead Time Price Action
Repair Service 2-4 weeks $2345cartAdd to Cart

Our highly skilled technicians can repair your 1785-L46B. 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 $2345cartAdd to Cart

Our highly skilled technicians can repair your 1785-L46B. 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-L46B such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
1785-L46B Ser A
1785-L46B/A, Series A, Rev A Request Quote
1785-L46B Ser B
1785-L46B/B, Series B, Rev B Request Quote
1785-L46B Ser C
1785-L46B/C, Series C, Rev C Request Quote
1785-L46B Ser D
1785-L46B/D, Series D, Rev D Request Quote
1785-L46B Ser E
1785-L46B/E, Series E, Rev E Request Quote

Common misspellings:
  • l785-L46B
  • 17b5-L46B
  • 1785-146B
  • 1785-LA6B
  • 1785-L468
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