Allen Bradley 1761-L16BBB MicroLogix 1000 Programmable Controller

FAQ

Q1: What is the 1761‑L16BBB used for?
It is a compact programmable controller used for small automation and machine control tasks, part of the MicroLogix 1000 family.

Q2: How many I/O points does it have?
It has 16 I/O points — ten digital inputs and six outputs (four MOSFET and two relay).

Q3: What power supply does it require?
It operates on 24 V DC with acceptable input range of approximately 20.4–26.4 V DC.

Q4: What communication options are available?
It includes an RS‑232 serial port using the DF1 protocol for programming and data exchange.

Q5: How much memory does the controller have?
It includes 1 KB of EEPROM memory for user programs.

Q6: What safety feature does it include?
It has an integrated Master Control Relay for emergency stop functionality.

Q7: What are the environmental operating limits?
It is designed for industrial use with operating temperatures up to ~55 °C and humidity 5–95 % non‑condensing.

Q8: Is this controller still in production?
No — it has been discontinued and is considered obsolete.

1761-L16BBB Allen Bradley

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