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docs(phase5): correct FOCAS probe binding — direct DllImport, not WireFocasClient (integration review)

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Joseph Doherty
2026-06-16 07:12:48 -04:00
parent 961b2b558d
commit af280af842
2 changed files with 6 additions and 3 deletions
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docs/drivers/TestConnectProbes.md
+4 -2
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@@ -47,7 +47,7 @@ with a human-readable explanation rather than a false-green TCP-open tick.
| **AbCip** | `libplctag` Tag `InitializeAsync` (EIP session + CIP Forward Open). A CIP-level error such as tag-not-found still proves the controller answered CIP → `Ok`. A session/ForwardOpen/connect error → handshake fail. | `"CIP session OK"` | `10.100.0.35:44818` (CIP sim) |
| **AbLegacy** | Same `libplctag` `InitializeAsync` handshake as AbCip, PCCC protocol family. | `"CIP session OK"` (PCCC family) | Deferred — no PLC5/SLC sim |
| **TwinCAT** | `AdsClient.Connect` + `ReadStateAsync`. See [degrade semantics](#twincat-degrade) below. | `"ADS state: {state}"` | Deferred — no ADS target |
| **FOCAS** | `cnc_allclibhndl3` via FWLIB P/Invoke (`Wire.WireFocasClient`). See [degrade semantics](#focas-degrade) below. | `"FOCAS handle OK"` | Deferred — no CNC + FWLIB |
| **FOCAS** | `cnc_allclibhndl3` via a direct `DllImport("fwlib32")` in the probe. See [degrade semantics](#focas-degrade) below. | `"FOCAS handle OK"` | Deferred — no CNC + FWLIB |
| **Galaxy** | gRPC unary call to `GalaxyRepository.TestConnection` on the configured mxaccessgw endpoint. See [auth-rejection rule](#galaxy-auth-rejection) below. | `"gateway gRPC OK"` | `http://10.100.0.48:5120` (mxaccessgw) |
**Historian.Wonderware** already performed a real handshake (`Hello` → `HelloAck`)
@@ -86,7 +86,9 @@ managed AMS router cannot start):
On a Windows host with the FANUC FWLIB shared library present:
- `cnc_allclibhndl3` is called via the existing `Wire.WireFocasClient` P/Invoke.
- `cnc_allclibhndl3` is called via a direct `DllImport("fwlib32")` declared in
the probe (the production `Wire.WireFocasClient` is a pure-managed FOCAS/2 TCP
client, not an FWLIB P/Invoke, so the probe carries its own native binding).
A successful handle allocation → `Ok=true`, `"FOCAS handle OK"`.
- A CNC-level rejection → handshake fail.