FAQ (Q&A)

Q1: What control system is PM861 used in?
A1: PM861 is used in ABB’s AC 800M controller system, part of the 800xA automation platform.

Q2: How much user memory does the PM861 provide?
A2: It comes with 4 MB of user memory and 1 MB of non-volatile RAM.

Q3: Does the PM861 support redundancy?
A3: Yes, it supports CPU redundancy when configured with the appropriate hardware.

Q4: What communication interfaces are available?
A4: It includes two Ethernet ports and supports CI853/CI854 for industrial bus communication.

Q5: Can the PM861 be programmed with standard ABB software?
A5: Yes, it is programmed using ABB Control Builder M.

Q6: What is the typical instruction execution time?
A6: It executes most instructions in under 1 millisecond.

Q7: What type of applications is PM861 suitable for?
A7: Suitable for power, oil & gas, water treatment, chemical processing, and more.

Q8: What is the power supply requirement?
A8: It operates on 24 V DC.

Q9: Is the PM861 certified for industrial use?
A9: Yes, it holds CE, UL, CSA, and ATEX certifications.

Q10: What is the protection class of the module?
A10: It has an IP20 protection rating.