diff --git a/examples/CI-Eng-Sample/02_item_df.qli b/examples/CI-Eng-Sample/02_item_df.qli
index d689ea3..96b754c 100644
--- a/examples/CI-Eng-Sample/02_item_df.qli
+++ b/examples/CI-Eng-Sample/02_item_df.qli
@@ -20,5 +20,6 @@ LOW_LOW_LIMIT,LOW_LIMIT,HIGH_LIMIT,HIGH_HIGH_LIMIT,SCALE_LOW_LIMIT,SCALE_HIGH_LI
 "CI-Eng-Sample.SYSTEM.PING_LOCALHOST","localhost reachable, from inttcpmon","Integer","9",0,0,0,0,0,1
 "CI-Eng-Sample.SYSTEM.PROC_ALM","ALARM process (alm) running, from intmon","Integer","9",0,0,0,0,0,1
 "CI-Eng-Sample.DEMO.COUNTER","Counter 1..100 driven by object DEMO.INCR1","Integer","999",0,0,0,0,0,100
+"CI-Eng-Sample.DEMO.FEED_ON","Live-data feed running (1 = on), written by feed\cieng_feed.ps1","Boolean","",0,0,0,0,0,0
 "CI-Eng-Sample.PLC1.COMM_OK","Station CIENG_PLC communication (1 = good), status item","Boolean","",0,0,0,0,0,0
 "CI-Eng-Sample.UA.COMM_OK","Station CIENG_UA communication (1 = good), status item","Boolean","",0,0,0,0,0,0
diff --git a/examples/CI-Eng-Sample/91_remove_item_df.qli b/examples/CI-Eng-Sample/91_remove_item_df.qli
index bf4d425..ddd4a6c 100644
--- a/examples/CI-Eng-Sample/91_remove_item_df.qli
+++ b/examples/CI-Eng-Sample/91_remove_item_df.qli
@@ -18,6 +18,7 @@ NAME
 "CI-Eng-Sample.SYSTEM.PING_LOCALHOST"
 "CI-Eng-Sample.SYSTEM.PROC_ALM"
 "CI-Eng-Sample.DEMO.COUNTER"
+"CI-Eng-Sample.DEMO.FEED_ON"
 "CI-Eng-Sample.PLC1.COMM_OK"
 "CI-Eng-Sample.UA.COMM_OK"
 "CI-Eng-Sample.TEMPLATES.TPL_REAL"
diff --git a/examples/CI-Eng-Sample/displays/trend_feed.ps1 b/examples/CI-Eng-Sample/displays/trend_feed.ps1
deleted file mode 100644
index 37049e4..0000000
--- a/examples/CI-Eng-Sample/displays/trend_feed.ps1
+++ /dev/null
@@ -1,16 +0,0 @@
-# Feed test values into the CI-Eng-Sample tank items so trends have a moving line.
-# CI Server R1.03.00. TANK1.LEVEL and TANK1.INFLOW are internal items: after a restart they
-# stay NOT INIT until something writes them. Writes every 5 s with itmval; stop with Ctrl+C.
-# LEVEL  = 50 +/- 25 % (period 10 min, stays inside the L 20 / H 80 alarm limits)
-# INFLOW = 250 +/- 150 m3/h (period 4 min)
-param([int]$Seconds = 3600)
-
-$end = (Get-Date).AddSeconds($Seconds)
-while ((Get-Date) -lt $end) {
-    $t = [double]((Get-Date) - (Get-Date).Date).TotalSeconds
-    $level = [math]::Round(50 + 25 * [math]::Sin(2 * [math]::PI * $t / 600), 1)
-    $inflow = [math]::Round(250 + 150 * [math]::Sin(2 * [math]::PI * $t / 240), 1)
-    itmval -p -n CI-Eng-Sample.TANK1.LEVEL -v $level > $null
-    itmval -p -n CI-Eng-Sample.TANK1.INFLOW -v $inflow > $null
-    Start-Sleep -Seconds 5
-}
diff --git a/examples/CI-Eng-Sample/feed/cieng_feed.ps1 b/examples/CI-Eng-Sample/feed/cieng_feed.ps1
new file mode 100644
index 0000000..b1128ca
--- /dev/null
+++ b/examples/CI-Eng-Sample/feed/cieng_feed.ps1
@@ -0,0 +1,79 @@
+# CI-Eng-Sample live data: writes test values into the sample items so displays, trends and alarms
+# move (internal items stay NOT INIT after a CI Server start). CI Server R1.03.00. Replaces
+# displays\trend_feed.ps1. Not part of the CI Server package: installed with install_feed.ps1 into
+# C:\Users\Public\CI-Eng-Sample\feed, from where the display button "Start" runs it.
+#
+# Usage: powershell -ExecutionPolicy Bypass -File cieng_feed.ps1 [-Seconds 3600] [-UntilFlag] [-Alarms] [-System] [-Cycle 5]
+#   (default)    run for -Seconds (3600)
+#   -UntilFlag   run while CI-Eng-Sample.DEMO.FEED_ON = 1 (display buttons Start / Stop); sets it to 1
+#                at start and 0 at the end
+#   -Alarms      LEVEL 50 +/- 33 % (crosses L 20 and H 80: alarms that need an acknowledgement);
+#                without it 50 +/- 25 % (stays inside the limits)
+#   -System      also write SYSTEM.CPU_LOAD / DISK_C / PING_LOCALHOST / PROC_ALM with this PC's real
+#                values - skipped automatically while the monitoring processes (intcpumon, intdskmon,
+#                inttcpmon, intmon; see ..\monitoring) are running, so they do not overwrite each other
+# Every cycle (default 5 s): TANK1.LEVEL (sine, 10 min), TANK1.INFLOW (250 +/- 150 m3/h, 4 min);
+# PUMP1.RUNNING = 1 while INFLOW > 250, only in auto mode (PUMP1.MODE = 1).
+# Only one copy runs at a time; log: %TLS_LST_PATH%\cieng_feed.log (start / stop lines).
+param([int]$Seconds = 3600, [switch]$UntilFlag, [switch]$Alarms, [switch]$System, [int]$Cycle = 5)
+
+$itmval = 'itmval'
+if ($env:TLS_ROOT_PATH) {
+    $exe = Join-Path $env:TLS_ROOT_PATH 'tls\exe\itmval.exe'
+    if (Test-Path $exe) { $itmval = $exe }
+}
+$S = 'CI-Eng-Sample.'
+$logDir = $env:TLS_LST_PATH
+if (-not $logDir) { $logDir = $PSScriptRoot }
+$log = Join-Path $logDir 'cieng_feed.log'
+
+function Get-Val([string]$name) {
+    $out = & $itmval -g -n ($S + $name) 2>$null
+    foreach ($l in $out) { if ($l -match '^Value\s*=\s*(.+)$') { return $Matches[1].Trim() } }
+    return $null
+}
+function Put([string]$name, $value) { & $itmval -p -n ($S + $name) -v $value > $null 2>&1 }
+function Write-Log([string]$text) {
+    try { Add-Content -Path $log -Value ('{0} {1}' -f (Get-Date -Format s), $text) } catch { }
+}
+
+$created = $false
+$mutex = New-Object Threading.Mutex($true, 'Global\CIENG_FEED', [ref]$created)
+if (-not $created) { Write-Log 'already running - this copy exits'; exit 0 }
+
+$amp = 25
+if ($Alarms) { $amp = 33 }
+$monitors = @('intcpumon', 'intdskmon', 'inttcpmon', 'intmon')
+$mode = 'seconds=' + $Seconds
+if ($UntilFlag) { $mode = 'until FEED_ON = 0' }
+$end = (Get-Date).AddSeconds($Seconds)
+try {
+    Write-Log ('start ({0}, alarms={1}, system={2}, user {3})' -f $mode, [bool]$Alarms, [bool]$System, [Environment]::UserName)
+    if ($UntilFlag) { Put 'DEMO.FEED_ON' 1 }
+    while ($true) {
+        if ($UntilFlag) { if ((Get-Val 'DEMO.FEED_ON') -ne '1') { break } }
+        elseif ((Get-Date) -ge $end) { break }
+        $t = [double]((Get-Date) - (Get-Date).Date).TotalSeconds
+        $level = [math]::Round(50 + $amp * [math]::Sin(2 * [math]::PI * $t / 600), 1)
+        $inflow = [math]::Round(250 + 150 * [math]::Sin(2 * [math]::PI * $t / 240), 1)
+        Put 'TANK1.LEVEL' $level
+        Put 'TANK1.INFLOW' $inflow
+        if ((Get-Val 'PUMP1.MODE') -eq '1') { Put 'PUMP1.RUNNING' ([int]($inflow -gt 250)) }
+        if ($System -and -not (Get-Process -Name $monitors -ErrorAction SilentlyContinue)) {
+            try {
+                $cpus = @(Get-CimInstance Win32_Processor)
+                $cpu = 0; foreach ($c in $cpus) { $cpu += $c.LoadPercentage }; $cpu = $cpu / [math]::Max(1, $cpus.Count)
+                Put 'SYSTEM.CPU_LOAD' ([math]::Round($cpu, 1))
+                $d = Get-CimInstance Win32_LogicalDisk -Filter "DeviceID='C:'"
+                Put 'SYSTEM.DISK_C' ([math]::Round(100 * ($d.Size - $d.FreeSpace) / $d.Size, 1))
+                Put 'SYSTEM.PING_LOCALHOST' ([int](Test-Connection -ComputerName localhost -Count 1 -Quiet))
+                Put 'SYSTEM.PROC_ALM' ([int]([bool](Get-Process alm -ErrorAction SilentlyContinue)))
+            } catch { }
+        }
+        Start-Sleep -Seconds $Cycle
+    }
+} finally {
+    if ($UntilFlag) { Put 'DEMO.FEED_ON' 0 }
+    Write-Log 'stop'
+    $mutex.ReleaseMutex()
+}
diff --git a/examples/CI-Eng-Sample/feed/cieng_feed_start.cmd b/examples/CI-Eng-Sample/feed/cieng_feed_start.cmd
new file mode 100644
index 0000000..022d6c9
--- /dev/null
+++ b/examples/CI-Eng-Sample/feed/cieng_feed_start.cmd
@@ -0,0 +1,6 @@
+@echo off
+rem Starts cieng_feed.ps1 in the background (CI Server R1.03.00). Called by the display button
+rem "Start" (server-side command, runs as the CI Server service account CIX_PROCESS) from the
+rem fixed install folder C:\Users\Public\CI-Eng-Sample\feed (install_feed.ps1). Returns at once;
+rem the feed runs until the button "Stop" writes CI-Eng-Sample.DEMO.FEED_ON = 0.
+start "" /b powershell.exe -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File "%~dp0cieng_feed.ps1" -UntilFlag -Alarms -System
diff --git a/examples/CI-Eng-Sample/feed/install_feed.ps1 b/examples/CI-Eng-Sample/feed/install_feed.ps1
new file mode 100644
index 0000000..adcd746
--- /dev/null
+++ b/examples/CI-Eng-Sample/feed/install_feed.ps1
@@ -0,0 +1,18 @@
+# Install or remove the CI-Eng-Sample live-data feed (CI Server R1.03.00).
+# Copies cieng_feed.ps1 and cieng_feed_start.cmd to C:\Users\Public\CI-Eng-Sample\feed: a fixed folder
+# outside the CI Server installation (the feed is not part of the CI Server package) that the CI
+# Server service account can read. The display button "Start" calls the .cmd there.
+# No admin rights needed. Usage: powershell -ExecutionPolicy Bypass -File install_feed.ps1 [-Remove]
+param([switch]$Remove)
+$dest = 'C:\Users\Public\CI-Eng-Sample\feed'
+if ($Remove) {
+    if (Test-Path $dest) { Remove-Item -LiteralPath $dest -Recurse -Force }
+    $parent = Split-Path $dest
+    if ((Test-Path $parent) -and -not (Get-ChildItem -LiteralPath $parent -Force)) { Remove-Item -LiteralPath $parent -Force }
+    'Feed removed from ' + $dest
+    return
+}
+New-Item -ItemType Directory -Force -Path $dest > $null
+Copy-Item -LiteralPath (Join-Path $PSScriptRoot 'cieng_feed.ps1') -Destination $dest -Force
+Copy-Item -LiteralPath (Join-Path $PSScriptRoot 'cieng_feed_start.cmd') -Destination $dest -Force
+'Feed installed in ' + $dest