User manual SEFELEC 5x Series 4 v1.0614.1.2. Multipoint ground continuity step: ............................................................................................... 13314.1.3. Text message step:....................................................................................................................... 13514.1.4. Image message step: ................................................................................................................... 13714.1.5. PDF message step: ...................................................................................................................... 13914.1.6. Condition step: ............................................................................................................................... 14114.1.7. Repetition step: .............................................................................................................................. 14314.1.8. Pause step: .................................................................................................................................... 14414.1.9. Keyboard Entry step: .................................................................................................................... 145Execution of a Sequence ................................................................................................................... 146PLC Interface (Programmable Logic Controller) ............................................................................................. 151Electrical characteristics of the signals ............................................................................................ 152Conventions on the different logical states ...................................................................................... 152Connections ......................................................................................................................................... 153Definition of input-output signals ....................................................................................................... 154Measurement-Discharge cycle .......................................................................................................... 157IEEE488-2 (GPIB) interface ............................................................................................................................. 161Syntax rules .......................................................................................................................................... 162IEEE-488-1 functions supported ....................................................................................................... 162List of IEEE488 commands ................................................................................................................ 162ETHERNET interface .................................................................................................................................. 163Cyber security recommendations...................................................................................................... 16417.1.1. Asset Management: ......................................................................................................................... 16417.1.2. Risk assessment: .............................................................................................................................. 16417.1.3. Physical security: .............................................................................................................................. 16417.1.4. Account management...................................................................................................................... 16517.1.5. Network security:............................................................................................................................. 16617.1.6. Remote access: ................................................................................................................................ 16617.1.7. Logging and events management .................................................................................................... 167