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Allen-Bradley 1785-L20C15 programmable controller

Allen-Bradley 1785-L20C15 programmable controller

  • Manufacturer: Allen-Bradley

  • Product No.: 1785-L20C15

  • Condition:1000 in stock

  • Product Type: programmable controller

  • Product Origin: USA

  • Payment: T/T, Western Union

  • Weight: 1450g

  • Shipping port: Xiamen

  • Warranty: 12 months

  • 24/7 Support
  • 30-Day Returns
  • Fast Shipping

Product Overview

The Allen-Bradley 1785-L20C15 is a programmable controller designed for industrial automation applications. It provides reliable performance, multiple communication options, and compatibility with various I/O modules.

Processor Specifications

Attribute 1785-L20C15
Backplane Current 2.7A @ 5V DC
Heat Dissipation 54 BTU/hour

Environmental Ratings

Attribute Specification
Operating Temperature 0–60°C (32–140°F)
Storage Temperature –40 to 85°C (–40 to 185°F)
Relative Humidity 5–95% non-condensing
Vibration Resistance 2g @ 10–500Hz
Shock Resistance Operating: 30g, Non-operating: 50g

Electromagnetic Compatibility

  • Emissions: CISPR 11, Group 1, Class A
  • ESD Immunity: IEC 61000-4-2, 4kV contact discharges
  • Radiated RF Immunity: IEC 61000-4-3, 10V/m, 3V/m Broadcast Bands (30MHz to 1000MHz)
  • EFT/B Immunity: IEC 61000-4-4, +2kV at 5kHz on communication ports
  • Surge Immunity: IEC 61000-4-5, +2kV line-earth (CM) on signal ports
  • Conducted RF Immunity: IEC 61000-4-6, 10Vrms with 1kHz sine-wave (150kHz to 30MHz)

Enclosure and Timing

  • Enclosure Type Rating: None (open-style)
  • Time-of-Day Clock/Calendar:
    • Max Variation at 60°C: ±5 min/month
    • Typical Variation at 20°C: ±20 sec/month
    • Timing Accuracy: 1 program scan

Available Cartridges

  • 1785-CHBM: ControlNet Hot Backup Cartridge (Required for each processor in a hot backup system)
  • 1785-RC: Relay Cartridge

Battery and Memory Modules

Component Model
Battery Allen-Bradley 1770-XYC
Memory Modules 1785-ME32, 1785-ME64, 1785-M100

I/O and Hardware Addressing

Configuration Module Compatibility
2-Slot Any mix of 8-pt modules; 16-pt modules must be I/O pairs (No 32-pt modules)
1-Slot Any mix of 8- or 16-pt modules; 32-pt modules must be I/O pairs
1/2-Slot Any mix of 8-, 16-, or 32-pt modules
  • Compatible I/O Modules: Bulletin 1771 I/O, 1794 I/O, 1746 I/O, and 1791 I/O (8-, 16-, 32-pt, and intelligent modules)

Communication Options

  • Serial
  • DH+
  • DH using 1785-KA
  • Remote I/O
  • ControlNet

Wiring Categories

Component Wire Category
Relay Cartridge Category 14
General Wiring Category 24

Installation and Weight

  • Location: 1771-A1B, -A2B, -A3B, -A3B1, -A4B chassis (Left-most slot)
  • Weight: 1.45 kg (3 lbs, 3 oz)

Keying

  • Between 40 and 42
  • Between 54 and 56

Certifications (When Product is Marked)

Certification Compliance
UL UL Listed Industrial Control Equipment
CSA CSA Certified Process Control Equipment
CSA (Class I, Div 2) Certified for hazardous locations (A, B, C, D groups)
CE EMC Directive 89/336/EEC (EN 50081-2, EN 50082-2), LVD Directive 73/23/EEC (EN 61131-2)
C-Tick Australian Radiocommunications Act, AS/NZS 2064 compliance
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Product Description

Product Overview

The Allen-Bradley 1785-L20C15 is a programmable controller designed for industrial automation applications. It provides reliable performance, multiple communication options, and compatibility with various I/O modules.

Processor Specifications

Attribute 1785-L20C15
Backplane Current 2.7A @ 5V DC
Heat Dissipation 54 BTU/hour

Environmental Ratings

Attribute Specification
Operating Temperature 0–60°C (32–140°F)
Storage Temperature –40 to 85°C (–40 to 185°F)
Relative Humidity 5–95% non-condensing
Vibration Resistance 2g @ 10–500Hz
Shock Resistance Operating: 30g, Non-operating: 50g

Electromagnetic Compatibility

  • Emissions: CISPR 11, Group 1, Class A
  • ESD Immunity: IEC 61000-4-2, 4kV contact discharges
  • Radiated RF Immunity: IEC 61000-4-3, 10V/m, 3V/m Broadcast Bands (30MHz to 1000MHz)
  • EFT/B Immunity: IEC 61000-4-4, +2kV at 5kHz on communication ports
  • Surge Immunity: IEC 61000-4-5, +2kV line-earth (CM) on signal ports
  • Conducted RF Immunity: IEC 61000-4-6, 10Vrms with 1kHz sine-wave (150kHz to 30MHz)

Enclosure and Timing

  • Enclosure Type Rating: None (open-style)
  • Time-of-Day Clock/Calendar:
    • Max Variation at 60°C: ±5 min/month
    • Typical Variation at 20°C: ±20 sec/month
    • Timing Accuracy: 1 program scan

Available Cartridges

  • 1785-CHBM: ControlNet Hot Backup Cartridge (Required for each processor in a hot backup system)
  • 1785-RC: Relay Cartridge

Battery and Memory Modules

Component Model
Battery Allen-Bradley 1770-XYC
Memory Modules 1785-ME32, 1785-ME64, 1785-M100

I/O and Hardware Addressing

Configuration Module Compatibility
2-Slot Any mix of 8-pt modules; 16-pt modules must be I/O pairs (No 32-pt modules)
1-Slot Any mix of 8- or 16-pt modules; 32-pt modules must be I/O pairs
1/2-Slot Any mix of 8-, 16-, or 32-pt modules
  • Compatible I/O Modules: Bulletin 1771 I/O, 1794 I/O, 1746 I/O, and 1791 I/O (8-, 16-, 32-pt, and intelligent modules)

Communication Options

  • Serial
  • DH+
  • DH using 1785-KA
  • Remote I/O
  • ControlNet

Wiring Categories

Component Wire Category
Relay Cartridge Category 14
General Wiring Category 24

Installation and Weight

  • Location: 1771-A1B, -A2B, -A3B, -A3B1, -A4B chassis (Left-most slot)
  • Weight: 1.45 kg (3 lbs, 3 oz)

Keying

  • Between 40 and 42
  • Between 54 and 56

Certifications (When Product is Marked)

Certification Compliance
UL UL Listed Industrial Control Equipment
CSA CSA Certified Process Control Equipment
CSA (Class I, Div 2) Certified for hazardous locations (A, B, C, D groups)
CE EMC Directive 89/336/EEC (EN 50081-2, EN 50082-2), LVD Directive 73/23/EEC (EN 61131-2)
C-Tick Australian Radiocommunications Act, AS/NZS 2064 compliance

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