Allen Bradley 1756-OB16 Digital DC output module

FAQ

Q1: What is the 1756‑OB16 module used for?
It provides 16 DC digital output channels for driving field devices such as relays and solenoids in a ControlLogix system.

Q2: What DC voltage range does this output module support?
It supports an operating range of approximately 10–31.2 V DC, with a nominal of 24 V DC.

Q3: How much current can each output deliver?
Each output channel can provide up to about 1 A maximum.

Q4: What is the total current capacity of the module?
The module can supply up to about 8 A in total across all outputs.

Q5: Is there electrical isolation on the module?
Yes, there is continuous isolation of roughly 250 V between outputs and the backplane as well as between output groups.

Q6: What kind of feedback or status does the module provide?
Status LEDs indicate the on/off state of each output channel.

Q7: What environmental conditions can the module operate in?
It operates normally from 0 °C to 60 °C and can be stored from −40 °C to 85 °C with up to 95 % non‑condensing humidity.

Q8: What are the approximate physical size and weight?
It follows the standard ControlLogix I/O module size (~54×38×111 mm) and weighs around ~0.36 kg (typical estimate).

1756-OB16 Allen Bradley

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