Allen-Bradley 1785-L30B PLC-5/30 Processor Module

FAQ

Q1. What is the 1785-L30B used for?
It is a PLC-5/30 processor used for controlling medium-scale industrial automation systems.

Q2. Is it a CPU or communication module?
It is a CPU (processor module), not a communication interface.

Q3. What memory capacity does it have?
It provides 32K words of battery-backed SRAM.

Q4. What communication interfaces are built in?
It includes DH+, Remote I/O, and serial (RS-232/422/423) ports.

Q5. How many I/O points can it support?
Up to 1024 I/O points, depending on system configuration.

Q6. What chassis does it use?
It installs into a 1771 I/O chassis used in PLC-5 systems.

Q7. Does it support Remote I/O systems?
Yes, it supports up to 28 remote I/O racks.

Q8. Is it still in production?
No, it is a legacy/discontinued PLC-5 processor, mainly used for maintaining existing systems.

1785-L30B Allen Bradley

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