Differences

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--- ezeio2:userinterface:configuration:devices:driverlist:doorlatch [2021-10-19 16:43] – created andreh
+++ ezeio2:userinterface:configuration:devices:driverlist:doorlatch [2021-10-20 00:01] (current) – johpar
@@ Line 1: / Line 1: @@
-==== Door latch ====
+==== Door latch control ====
+This driver manages a pulse-operated latch, such as the Southco R4-EM or similar.
+== Features ==
+  * Monitor latch and door status
+  * Control latch 100 ms pulse
+  * Detects latch and door tamper
+  * Re-trigger latch if door is opened and latch is reset
+  * Monitor and report total time door was opened
+  * Optionally report if door is open longer than allowed
+The driver expects the following connections:
+^ Type ^ Signal ^ Purpose ^ Status ^
+| Input | Door status | Monitor the status of the door | Closed circuit = Door closed |
+| Input | Latch status | Monitor the status of the latch | Closed circuit = Latch closed |
+| Output | Latch trigger | Triggers the latch to open | 100ms positive pulse |
+Note that the output pulse voltage is the same as the system supply voltage.
+The Latch should be supplied directly from the power supply.
+DO NOT supply the latch through the ezeio.
+The following events are detected and logged/reported
+^ Condition ^ Reported status ^
+| Latch triggered & door opened | "Door opened" |
+| Door closed & latch reset | "Door closed. Was open #s" |
+| Latch triggered, door not opened | "Door failed to open" |
+| Latch reset while door remain open | "Latch tamper" |
+| Latch or door opened without trigger | "Door forced open" |
+| Door open longer than allowed | "Door open too long #s" |
+{{:ezeio2:userinterface:configuration:devices:latch:southco_latch.png?direct&600|}}
+If no destination list is selected, alerts are just logged.