FAQ – 10 Questions & Answers 

Q1: What type of I/O does the ADV851 provide?
A1: It provides a combination of 16 digital input channels and 16 digital output channels within one module.

Q2: What voltage level is used by the inputs and outputs?
A2: Both the input and output sections operate at 24 V DC, which is standard for industrial digital interfaces.

Q3: Can the module be used in remote I/O stations?
A3: Yes, it is suitable for local or remote FIO racks depending on the system architecture.

Q4: Is the module plug-in replaceable?
A4: Yes, it can be removed or replaced without rewiring since the terminal block remains fixed on the rack.

Q5: Does the module include isolation?
A5: It includes electrical isolation between the field side and the internal circuitry.

Q6: What types of loads can the outputs drive?
A6: Typical applications include relays, indicators, solenoid valves, and signal triggers that are compatible with 24 V DC outputs.

Q7: How many channels does each section provide?
A7: The input section includes 16 channels, and the output section includes 16 channels.

Q8: Is the ADV851 suitable for fast logic signals?
A8: Yes, transistor outputs and digital inputs offer millisecond-level timing.

Q9: Can the module support redundancy?
A9: It can be installed in redundant I/O racks to support high-availability architectures.

Q10: What industries commonly use the ADV851?
A10: Petrochemical, manufacturing, utilities, machinery control, water treatment, and general automation sectors.