Allen-Bradley 1769-L30ER CompactLogix 5370 L3 PAC

The Allen-Bradley 1769-L30ER is a versatile CompactLogix packaged controller. It belongs to the 5370 L3 CompactLogix family. This processor module delivers 1MB of user memory for machine control applications. The Allen-Bradley 1769-L30ER includes a shipped 1GB SD card for non-volatile memory storage.

Key Technical Specifications

This controller operates on 24 Volts DC input power. It supports Sixteen (16) Ethernet/IP nodes for device connectivity. The module handles up to Eight (8) 1769 Compact I/O modules locally. It also supports Three (3) expansion banks for system growth.

• Communication Ports: Includes Two (2) Ethernet/IP ports and One (1) USB port

• Memory: Features 1MB user memory plus a shipped 1GB SD card (1784-SD1)

• I/O Capacity: Maximum of 8 local Compact I/O modules across 3 banks

• Ethernet Nodes: Supports 16 Ethernet/IP nodes

• Programming Languages: Supports Relay Ladder, Structured Text, Function Block, and SFC

• Tasks: Handles 32 tasks with 100 programs per task

Environmental and Physical Specifications

The 1769-L30ER operates from 0°C to +60°C (32°F to 140°F). Vibration rating reaches 5G from 10 to 500 Hz with 0.030 inch peak-to-peak. Operating shock equals 20G to 30G depending on mounting method. Use copper wire rated for 90°C. Solid wire size ranges from 22 to 14 AWG. Stranded wire size ranges from 22 to 16 AWG. Maintain 50 mm (2 inches) clearance on all sides for proper airflow.

Power Supply Distance and Mounting

You must observe the power supply distance rating of 4. Install the 1769-L30ER no more than four modules away from the power supply. Compatible power supplies include 1769-PA2, 1769-PB2, 1769-PA4, and 1769-PB4. The controller supports both DIN rail and panel mounting. The replacement terminal block part number is 1769-RTBN18. The battery part number is 1747-BA.

Communication and Network Capabilities

The embedded dual Ethernet ports support 10/100 Mbps speed with auto-negotiation. Maximum cable distance reaches 100 meters using Cat5 or Cat6 cable with RJ45 connectors. Network topologies include Device Level Ring (DLR), Star, and Linear. DLR provides fault-tolerant operation with primary and secondary Ethernet paths. Linear topology offers point-to-point connection. Star topology connects multiple devices to a central hub.

IP Address Configuration Methods

You can assign the IP address using two methods. First, use the BOOTP-DHCP utility from Allen-Bradley. This tool searches for the unique MAC address of the device. It then assigns the specified IP address to the 1769-L30ER. Second, you can use RSnetworx for Ethernet for configuration. The USB port also supports initial parameter download.

Status Indicators and Diagnostics

The 1769-L30ER provides five LED status indicators. RUN shows the controller operating status. FORCE indicates forced I/O conditions. BAT displays battery status. OK shows controller health. I/O indicates I/O module communication status. These indicators help operators quickly diagnose system issues.

Non-Volatile Memory and SD Card Function

The controller ships with a 1784-SD1 Secure Digital card providing 1GB of non-volatile memory. You can upgrade to the 1784-SD2 card with 2GB memory separately. The SD card automatically loads user data and program data to the controller. This feature prevents unwanted stoppage due to program loss. The volatile memory area is maintained by an internal energy storage circuit. However, SD card loading provides more secure data retention.

Package Contents

• Allen-Bradley 1769-L30ER Processor Module

• 1784-SD1 Secure Digital Card (1 GB non-volatile memory)

• 1747-BA Battery

• 1769-RTBN18 Replacement Terminal Block (18-pin)

• DIN rail mounting bracket (pre-attached)

• RJ45 programming cable

• Product documentation and installation instructions

Common FAQs

Question 1: How many I/O modules can the 1769-L30ER support locally?
The Allen-Bradley 1769-L30ER supports up to Eight (8) 1769 Compact I/O modules. You can distribute them across Three (3) expansion banks.

Question 2: How many Ethernet nodes can connect to this controller?
The 1769-L30ER supports up to Sixteen (16) Ethernet/IP nodes. These nodes can include HMI, SCADA, databases, gateways, and other controllers.

Question 3: What SD card is shipped with the 1769-L30ER?
The controller ships with a 1784-SD1 card providing 1 GB of non-volatile memory. You can upgrade to the 1784-SD2 with 2 GB separately.

Question 4: What is the power supply distance rating for installation?
The power supply distance rating is 4. Install the 1769-L30ER no more than four modules away from the power supply. Compatible power supplies include the 1769-PA2, 1769-PB2, 1769-PA4, and 1769-PB4.

Question 5: What network topologies does the dual Ethernet port support?
The Allen-Bradley 1769-L30ER supports Device Level Ring (DLR), Linear, and Star topologies. DLR offers fault-tolerant operation with automatic path switching.