Allen-Bradley 1769-L30 CompactLogix Processor Module
The Allen-Bradley 1769-L30, also cataloged as the 1769-L30 Processor Module, operates as a dedicated hardware component for industrial process logic execution and serial communications within CompactLogix platforms. The unit manages up to 16 local 1769 Compact I/O expansion modules across a maximum of 3 I/O banks using two integrated RS-232 serial communication ports.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-L30 |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.37 kg (0.81 lbs) |
| Dimensions | Standard CompactLogix 1769 form factor |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Requires 1769 Compact I/O power supply (power supply distance rating of 4) |
| User Memory | 256 KB |
| Member Controllers | 1769-L30ER, 1769-L30ER-NSE, 1769-L30ERM, 1769-L30ERMK |
| Communication Ports | Two (2) RS-232 serial ports (Channel 0: Grounded, Channel 1: Electrically isolated) |
| Supported Protocols | DF1, DH485, ASCII |
| Maximum I/O Modules | 16 modules |
| Maximum I/O Banks | 3 banks |
| Task Configuration | 32 tasks, 100 programs per task |
| Replacement Battery | 1747-BA |
| Replacement Terminal | 1769-RTBN18 |
Industrial Control & Drive Integration
The processor module maintains backplane bus communication velocity across connected expansion chassis while managing 32 concurrent controller execution tasks. System engineers verify firmware flash compatibility across backplane slots to maintain deterministic scan cycles and prevent data corruption during sequential program routines. Real-time diagnostic registers monitor bus communication states to maintain high system availability.
Frequently Asked Questions
Q: Does the 1769-L30 processor support removal or insertion under power (RIUP)?
A: No, the 1769 CompactLogix chassis architecture does not support RIUP. Removing or inserting the 1769-L30 processor module while backplane power is applied will cause system faults and can result in physical hardware damage to the backplane bus interface.
Q: What programming cables are required to establish a direct communication link with the 1769-L30 RS-232 serial ports?
A: Serial connection to the RS-232 ports requires a 1747-CP3 or 1756-CP3 dedicated interface cable connected directly to a computer or programming terminal running compatible control software.
Field Installation Guidelines
Mount the 1769-L30 processor module directly on a standard 35 mm DIN rail or secure it to a grounded enclosure backplate using panel mounting screws. Observe the power supply distance rating by installing the processor within 4 slots of the system power supply module. Route all RS-232 serial communication wiring through dedicated conduits separate from high-voltage AC lines or motor power cabling. Ensure solid copper conductors (22-14 AWG) or stranded conductors (22-16 AWG) rated for 90 deg C are properly landed and secured to prevent signal loss or unexpected electrical faults.
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| Warranty | 12 Months |
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