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Auto: s7-a5 — LOGO!/S7-200 V-memory parser

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Add CPU-aware overload S7AddressParser.Parse(string, CpuType?) that
accepts the V area letter for S7-200 / S7-200 Smart / LOGO! 0BA8 and
maps it to DataBlock DB1. V is rejected on S7-300/400/1200/1500 and on
the legacy CPU-agnostic Parse(string) overload. Width suffixes mirror
M/I/Q (VB/VW/VD/V0.0). S7Driver passes _options.CpuType so live tag
config picks up family-aware parsing.

Tests cover S7200/S7200Smart/Logo0BA8 positive cases, modern-family
rejection, and CPU-agnostic rejection.

Closes #291
This commit is contained in:
Joseph Doherty
2026-04-25 16:58:34 -04:00
parent 6737edbad2
commit e5122c546b
3 changed files with 121 additions and 6 deletions
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4
src/ZB.MOM.WW.OtOpcUa.Driver.S7/S7Driver.cs
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@@ -102,7 +102,9 @@ public sealed class S7Driver(S7DriverOptions options, string driverInstanceId)
_parsedByName.Clear();
foreach (var t in _options.Tags)
{
var parsed = S7AddressParser.Parse(t.Address); // throws FormatException
// Pass CpuType so V-memory addresses (S7-200 / S7-200 Smart / LOGO!) resolve
// against the device's family-specific DB mapping.
var parsed = S7AddressParser.Parse(t.Address, _options.CpuType); // throws FormatException
if (t.ElementCount is int n && n > 1)
{
// Array sanity: cap at S7 PDU realistic limit, reject variable-width