diff --git a/python/set_devices/ump_logger_demo.py b/python/set_devices/ump_logger_demo.py
index 2006312..b31d0e8 100644
--- a/python/set_devices/ump_logger_demo.py
+++ b/python/set_devices/ump_logger_demo.py
@@ -4,9 +4,9 @@ import math
 from set_devices import ump_logger as codec
 
 
-def sample(time_ms, period_ms=20):
+def sample(time_ms, period_ms=20, *, repeat=True):
     """Повторяемый цикл: пуск, разгон 6–16 мА, отключение и спад тока."""
-    phase = time_ms % 6000
+    phase = time_ms % 6000 if repeat else time_ms
     started = 1000 <= phase < 5000
     reset = 5000 <= phase < 5300
     # Как в прошивке: фронт команды включает выход на 1000 мс.
@@ -42,16 +42,16 @@ def sample(time_ms, period_ms=20):
 
 
 def capture(period_ms):
-    """Пример архива: до 399 точек предыстории, отключение и 1 с после него."""
-    before = list(range(5000, -1, -period_ms))[1:400][::-1]
-    after = list(range(5000 + period_ms, 6000, period_ms)) + [6000]
-    available = codec.CAPACITY - len(before) - 1
-    truncated = len(after) > available
-    if truncated:
-        after = after[:available - 1] + after[-1:]
-    records = [sample(t, period_ms) for t in before + [5000] + after]
-    # Последний снимок относится к концу постинтервала, а не новому циклу.
-    records[-1]['event'] = 5 | (0x200 if truncated else 0)
-    records[-1]['post_truncated'] = int(truncated)
-    records[-1]['off_trigger'] = 0
+    """Пример архива: 10% ёмкости банка записывается после отключения."""
+    post_points = codec.CAPACITY // 10
+    before = list(range(5000, -1, -period_ms))[1:codec.CAPACITY - post_points][::-1]
+    after = [5000 + i * period_ms for i in range(1, post_points + 1)]
+    records = [sample(t, period_ms) for t in before + [5000]]
+    for t in after:
+        # Continue the stopped state instead of starting another demo cycle.
+        record = sample(t, period_ms, repeat=False)
+        record['event'] = 1
+        record['off_trigger'] = 0
+        records.append(record)
+    records[-1]['event'] = 5
     return records