Practice Test Geeks(CSI) Certified System Integrator Practice Test
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Installation, Configuration & Troubleshooting Flashcards

7 cards from real CSI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Installation, Configuration & Troubleshooting flashcards as text

  1. When integrating a new industrial controller into an existing SCADA network, which step should be performed FIRST?

    Answer: Conduct a site survey and document existing network topology

    A site survey and topology documentation ensures the integrator understands existing infrastructure before making any physical or logical changes.

  2. A technician installs a VFD (Variable Frequency Drive) but the motor runs at incorrect speed. The most likely configuration issue is:

    Answer: Incorrect base frequency or motor poles parameter

    Base frequency and motor pole count directly determine the speed calculation; incorrect values cause the VFD to output the wrong synchronous speed.

  3. Which protocol is most appropriate for time-sensitive communication between PLCs on a manufacturing floor requiring deterministic data delivery?

    Answer: PROFINET IRT

    PROFINET IRT (Isochronous Real-Time) provides deterministic, cycle-synchronized communication suitable for high-speed motion control and I/O.

  4. During commissioning, an analog sensor reads 0 mA when the process value is at minimum. The standard 4–20 mA signal specification requires 4 mA at minimum. This condition most likely indicates:

    Answer: An open-circuit or broken loop condition

    A 0 mA reading in a 4–20 mA loop indicates an open circuit or broken loop, since even at zero process value the signal should be 4 mA.

  5. A newly installed Ethernet-based control network experiences intermittent communication faults. The integrator checks cable runs and finds several cable segments exceed 110 meters. The issue is most likely:

    Answer: Signal attenuation due to exceeding the 100-meter Cat5e/6 segment limit

    Standard 100BASE-TX/1000BASE-T Ethernet over copper is limited to 100 meters per segment; exceeding this causes signal degradation and intermittent errors.

  6. When configuring a safety PLC for a safety integrity level (SIL) 2 application, which requirement is mandatory?

    Answer: Redundant input channels with cross-checking (1oo2 or 2oo3 voting) must be implemented

    SIL 2 applications require redundant input architecture with diagnostic voting to detect dangerous failures and meet the required probability of failure on demand.

  7. A system integrator is troubleshooting a Modbus TCP communication failure between a HMI and a remote I/O module. The HMI reports 'Exception Code 02 – Illegal Data Address'. This means:

    Answer: The requested register address does not exist in the slave device

    Modbus Exception Code 02 indicates the requested data address or register range is not available in the addressed slave device.