5 Display of SENC Information
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.232(82) - Adoption of the Revised Performance Standards for Electronic Chart Display and Information Systems (ECDIS) - (Adopted on 5 December 2006) - Annex - Revised Performance Standards for Electronic Chart Display and Information Systems (ECDIS) - Module B - Operational and Functional Requirements - 5 Display of SENC Information

5 Display of SENC Information

  5.1 ECDIS should be capable of displaying all SENC information. An ECDIS should be capable of accepting and converting an ENC and its updates into a SENC. The ECDIS may also be capable of accepting a SENC resulting from conversion of ENC to SENC ashore, in accordance with IHO TR 3.11footnote. This method of ENC supply is known as SENC delivery.

  5.2 SENC information available for display during route planning and route monitoring should be subdivided into the following three categories, Display Base, Standard Display and All Other Information (see appendix 2).

  5.3 ECDIS should present the Standard Display at any time by a single operator action.

  5.4 When an ECDIS is switched on following a switch off or power failure, it should return to the most recent manually selected settings for display.

  5.5 It should be easy to add or remove information from the ECDIS display. It should not be possible to remove information contained in the Display Base.

  5.6 For any operator identified geographical position (e.g. by cursor picking) ECDIS should display on demand the information about the chart objects associated with such a position.

  5.7 It should be possible to change the display scale by appropriate steps e.g. by means of either chart scale values or ranges in nautical miles.

  5.8 It should be possible for the mariner to select a safety contour from the depth contours provided by the SENC. ECDIS should emphasize the safety contour over other contours on the display, however:

  • .1 if the mariner does not specify a safety contour, this should default to 30m. If the safety contour specified by the mariner or the default 30 m contour is not in the displayed SENC, the safety contour shown should default to the next deeper contour;

  • .2 if the safety contour in use becomes unavailable due to a change in source data, the safety contour should default to the next deeper contour; and

  • .3 in each of the above cases, an indication should be provided.

  5.9 It should be possible for the mariner to select a safety depth. ECDIS should emphasize soundings equal to or less than the safety depth whenever spot soundings are selected for display.

  5.10 The ENC and all updates to it should be displayed without any degradation of their information content.

  5.11 ECDIS should provide a means to ensure that the ENC and all updates to it have been correctly loaded into the SENC.

  5.12 The ENC data and updates to it should be clearly distinguishable from other displayed information, including those listed in appendix 3.

Parent topic: Module B - Operational and Functional Requirements
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