Description
Description: The Allen-Bradley 1769-L31 is a CompactLogix controller that is part of the 1769 CompactLogix Programmable Automation Controller (PAC) family. This controller has Two (2) RS232 communication ports, with 512Kbytes memory and supports installation up to Sixteen (16) I/O modules and extended up to Three (3) banks of I/O module.
Technical Specifications for 1769-L31
| Manufacturer | Rockwell Automation |
| Operating: 10 to 500 Hz, 5G, 0.030 in. peak-to-peak | 0° to +60°C (+32° to +140°F) |
| 1747-BA | Vibration: |
| 1747-CP3 / 1756-CP3 | Battery: |
| 4 | Programming cable: |
| 3 banks | Power supply distance rating: |
| 16 Modules | Maximum number of I/O banks supported: |
| DH485; DF1; ASCII | Maximum number of I/O modules supported: |
| Channel Isolation: | Channel 0: Fully isolated; Channel 1: Non-isolated |
| Communication ports: | Two (2) RS232 |
| Part Number: | 1769- L31 |
| Product Type: | Controller |
| Brand | Allen-Bradley |
| Part Number/Catalog No. | 1769-L31 |
| Product Line | CompactLogix |
| Module Type | Processor Module |
| Module Type | Control Module |
| Communication | Serial |
| Enclosure Type Rating | None (Open Style) |
| Memory | 512 kilobytes |
| Series | A and B |
| Battery | 1769-BA |
| Shipping Weight | 2 lbs. |
| Shipping Dimensions | 8X8X5 inch |
| Wire Type | Copper-90 degrees Celsius |
| Wire Size (Solid) | 22-14 AWG |

The Allen-Bradley 1769-L31 is a Programmable Automation Controller (PAC) that is part of the 1769 CompactLogix controller family. This controller is ideal for use in small to medium scale applications. This controller is provided with dual RS232 communication interfaces, specifically channel 0 that supports DF1, DH-485 and ASCII protocols and channel 1 that supports DF1 and DH-485 protocols.
Channel 0 is a fully isolated port while Channel 1 is a non-isolated port, both supporting up to 38.4 kbps transmission speed. It also comes with a user memory of 512Kbytes and non-volatile memory option through the 1784-CF64 or 1784-CF128 CompactFlash card.
This controller supports up to Sixteen (16) local I/O modules and may be expanded up to Three (3) banks of Input and Output modules for system expansion. This controller must be installed not more than Four (4) modules away from the power supply, designated by its power supply distance rating.
It is also equipped with commissioning such as I/O forcing for rapid engineering of the controller.
The 1769-L31 comes with easily identifiable LED indicators such as RUN, FORCE, BAT, OK, I/O, DHC0, Channel 0 and Channel 1 LED indicators. Each of these LED operate independently to depict the current controller status. 

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