From 07d29a0b6c1d4f550fa8c69f6bbe20443f0bdec3 Mon Sep 17 00:00:00 2001
From: Thomas Vanbesien <tvanbesi@proton.me>
Date: Fri, 20 Feb 2026 13:28:27 +0100
Subject: Replace static node values with random updates every second
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Remove the value field from nodes config — nodes are now created with
zero-initialized values, then randomized at startup and every 1000ms
via UA_Server_addRepeatedCallback. This is intended for testing OPC UA
monitoring and subscriptions.
---
 readme.md | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

(limited to 'readme.md')

diff --git a/readme.md b/readme.md
index b334fb2..d13cec7 100644
--- a/readme.md
+++ b/readme.md
@@ -135,29 +135,32 @@ positional argument (before the optional log level):
 build/bobink_opcua_server server.conf client.conf opc.tcp://localhost:14840 nodes.conf
 ```
 
+The config file only declares the node structure (name, type, access level).
+Values are not specified in the config — the server assigns random values at
+startup and updates them every second. This is intended for testing OPC UA
+monitoring and subscriptions.
+
 The file uses the same `key = value` format with dot-indexed keys:
 
 ```
 node.0.name = Temperature
 node.0.description = Current temperature reading
 node.0.type = double
-node.0.value = 23.5
 node.0.accessLevel = read
 
 node.1.name = DeviceName
 node.1.type = string
-node.1.value = Sensor-01
 node.1.accessLevel = readwrite
 
 node.2.name = Measurements
 node.2.description = Recent measurements
 node.2.type = double[]
-node.2.value = 1.5, 2.3, 3.7, 4.1
 node.2.accessLevel = read
 ```
 
 Each node gets a string NodeId in namespace 1 (`ns=1;s=<name>`). The `name`
-field is also used as the display name and browse name.
+field is also used as the display name and browse name. Array nodes are
+created with 5 elements.
 
 ### Fields
 
@@ -166,14 +169,13 @@ field is also used as the display name and browse name.
 | `name` | yes | Display name, browse name, and string NodeId |
 | `description` | no | Human-readable description |
 | `type` | yes | Data type (see table below); append `[]` for a 1D array |
-| `value` | yes | Initial value; comma-separated for arrays |
 | `accessLevel` | yes | `read` or `readwrite` |
 
 ### Supported Types
 
 | Type name | OPC UA type |
 |-----------|-------------|
-| `bool` | Boolean (`true` / `false`) |
+| `bool` | Boolean |
 | `int16` | Int16 |
 | `uint16` | UInt16 |
 | `int32` | Int32 |
@@ -185,5 +187,3 @@ field is also used as the display name and browse name.
 | `string` | String |
 
 Append `[]` to any type name for a 1D array (e.g. `double[]`, `string[]`).
-Array values are comma-separated. String values in arrays cannot contain
-literal commas.
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