JASPAR Profile Settings
This section describes the acceptable range defined by the JASPAR specification and the range supported by this plug-in for each security profile field.
| Field | JASPAR Specification | Range Supported by This Plug-in | Configurable Range and Notes |
|---|---|---|---|
| MAC extraction bit length | 0–128 | 1–128 | Configure this under Truncated MAC Position on the Ch Setting tab in Security Setting. Messages without an authenticator are not supported by this plug-in. |
| FV extraction bit length | 0–16 | 0–32 | Configure this under Truncated FV Position on the Ch Setting tab in Security Setting. A bit length of 0 means FV is not used, so clear FV Used on the Ch Setting tab. You cannot set the bit length to 0 while FV Used is selected. |
| Message ID bit length | 16, 32 | 16, 32 | Configure this under Length in Message ID on the Ch Setting tab in Security Setting. Set 16 for standard IDs and 32 for extended IDs. |
| Trip counter bit length | 0–24 | 1–32 | Configure this in the Element Setting dialog for Message ID on the Ch Setting tab (TripCnt). In this version the bit length cannot be set to 0. |
| Reset counter bit length | 0–24 | 1–32 | Configure this in the Element Setting dialog for Message ID on the Ch Setting tab (ResetCnt). In this version the bit length cannot be set to 0. |
| Message counter bit length | 0–16 | 1–32 | Configure this in the Element Setting dialog for Message ID on the Ch Setting tab (MsgCnt). In this version the bit length cannot be set to 0. |
| Reset flag bit length | 0–2 | 1, 2 | Configure this in the Element Setting dialog for Message ID on the Ch Setting tab (ResetFlag). When set to 1, verification is performed only when the reset counter is equal to the latest value or latest value – 1 (even when multiple attempts are made). |
| Trip counter periodic transmit cycle (ms) | ≤ 65535 | 10–65535 | Configure this in Cycle under Target Frame Info on the ID Setting tab in Security Setting. |
| Reset counter periodic transmit cycle (ms) | ≤ 65535 | 10–65535 | Configure this in Cycle under Target Frame Info on the ID Setting tab in Security Setting. |
| Reset counter increment cycle (ms) | ≤ 65535 | Not configurable (unsupported) | Reset counter updates are performed only by the sync message. |
| MAC verification maximum attempts | 0–3 | 1–255 | Configure this in MAC Verify Attempts on the Ch Setting tab in Security Setting. A value of 0 means no verification, so clear Use Message Authentification on the Ch Setting tab. |
| Offset time from monitor start to start MAC verification (ms) | 0–65535 | Not configurable (fixed at 0) | MAC verification starts immediately when monitoring begins. |
| Trip counter reinitialization allowance at maximum value | 1–16 | Not configurable (unsupported) | The trip counter is not resynchronized when it reaches the maximum value. |