| No. | Item | Definition |
|---|---|---|
| 1. | accuracy | closeness to true value |
| 2. | actuator | device that causes movement |
| 3. | alarm | warning of abnormal condition |
| 4. | algorithm | step-by-step problem-solving method |
| 5. | analog | continuously varying signal type |
| 6. | audit | formal review of records |
| 7. | automation | use of machines for tasks |
| 8. | availability | readiness for operation |
| 9. | backup | saved copy for recovery |
| 10. | bandwidth | data capacity of a channel |
| 11. | batch | group processed together |
| 12. | binary | using two possible states |
| 13. | calibration | adjustment for measurement accuracy |
| 14. | cloud | remote internet-based computing |
| 15. | commissioning | bringing system into service |
| 16. | compliance | meeting required standards |
| 17. | configuration | arrangement of settings |
| 18. | control | directing a system’s behavior |
| 19. | cybersecurity | protection against digital threats |
| 20. | cycle | one complete operation sequence |
| 21. | database | organized collection of data |
| 22. | deployment | putting system into use |
| 23. | diagnostics | tests to find faults |
| 24. | digital twin | virtual model of asset |
| 25. | downtime | time a system is unavailable |
| 26. | drive | unit controlling motor power |
| 27. | edge | processing near data source |
| 28. | efficiency | output with minimal waste |
| 29. | encoder | motion or position sensor |
| 30. | encryption | encoding data for protection |
| 31. | Ethernet | networking standard for data |
| 32. | event | notable occurrence in system |
| 33. | fail-safe | defaults to safe condition |
| 34. | feedback | output returned for correction |
| 35. | firewall | network traffic filter |
| 36. | firmware | software stored in hardware |
| 37. | gateway | device linking networks |
| 38. | handshake | initial communication exchange |
| 39. | hardware | physical equipment components |
| 40. | hazard | potential source of harm |
| 41. | heartbeat | periodic alive signal |
| 42. | HMI | human-machine interface screen |
| 43. | input | data entering a system |
| 44. | inspection | checking for defects |
| 45. | integration | combining parts into one |
| 46. | interface | point of interaction |
| 47. | interlock | safety condition preventing action |
| 48. | latency | delay before response |
| 49. | lockout | isolating energy before work |
| 50. | logging | recording events or data |
| 51. | logic | rules for decision making |
| 52. | loop | closed path of control |
| 53. | machine learning | systems learning from data |
| 54. | maintenance | work to keep equipment running |
| 55. | Modbus | industrial communication protocol |
| 56. | monitoring | observing system status continuously |
| 57. | motor | machine converting power to motion |
| 58. | network | connected system of devices |
| 59. | node | single device on network |
| 60. | optimization | improving performance efficiently |
| 61. | output | data leaving a system |
| 62. | parameter | settable system value |
| 63. | patch | small software update |
| 64. | PID | common feedback control method |
| 65. | PLC | industrial programmable controller |
| 66. | polling | checking devices repeatedly |
| 67. | precision | repeatability of measurements |
| 68. | protocol | rules for communication |
| 69. | quality | degree of meeting standards |
| 70. | query | request for data |
| 71. | redundancy | backup duplication for reliability |
| 72. | relay | electrically operated switch |
| 73. | reliability | consistent performance over time |
| 74. | response time | delay to react |
| 75. | risk | chance of harmful outcome |
| 76. | robot | programmable machine for work |
| 77. | robustness | strength against disturbances |
| 78. | rollback | reverting to earlier version |
| 79. | SCADA | supervisory control system |
| 80. | scalability | ability to grow capacity |
| 81. | sensor | device that detects changes |
| 82. | servo | precise controlled motor system |
| 83. | setpoint | desired target value |
| 84. | signal | transmitted measurement or command |
| 85. | simulation | modeling system behavior virtually |
| 86. | switch | device that opens circuits |
| 87. | tag | named data point |
| 88. | telemetry | remote measurement transmission |
| 89. | throughput | amount processed over time |
| 90. | tolerance | allowed variation from target |
| 91. | traceability | ability to track history |
| 92. | transducer | device converting energy forms |
| 93. | trigger | event that starts action |
| 94. | troubleshooting | finding and fixing problems |
| 95. | update | bringing to newer version |
| 96. | upgrade | improving to better version |
| 97. | uptime | time a system runs |
| 98. | valve | device controlling fluid flow |
| 99. | versioning | managing revision history |
| 100. | watchdog | monitor that resets failures |
