From fed0432e0214be4416b48e8c1bd471de71882324 Mon Sep 17 00:00:00 2001
From: legoboyvdlp R <legoboyvdlp@gmail.com>
Date: Sun, 15 Nov 2020 17:03:39 +0000
Subject: [PATCH] IESI power: now refers to 7XB relay. Also, 200ms delay before
 IESI power is lost.

---
 Models/Instruments/IESI/IESI.nas | 22 ++++++++++++++++------
 Nasal/Systems/electrical.nas     |  1 +
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/Models/Instruments/IESI/IESI.nas b/Models/Instruments/IESI/IESI.nas
index 85258f17..fa2d41a0 100644
--- a/Models/Instruments/IESI/IESI.nas
+++ b/Models/Instruments/IESI/IESI.nas
@@ -186,9 +186,8 @@ var canvas_IESI = {
 			me["QNH_std"].hide();
 		}
 	},
+	_transientVar: 0,
 	updatePower: func(notification) {
-		# todo consider relay 7XB for power of DC HOT 1
-		# todo transient max 0.2s
 		# todo 20W power consumption
 		if (notification.attReset == 1) {
 			if (notification.iesiInit and _IESITime + 90 >= notification.elapsed_seconds) {
@@ -199,7 +198,7 @@ var canvas_IESI = {
 			iesi_init.setBoolValue(0);
 		}
 		
-		if (notification.dcEss >= 25 or (notification.dcHot1 >= 25 and notification.airspeed >= 50 and notification.elapsed_seconds >= 5)) {
+		if (notification.dcEss >= 25 or (notification.relay7XB and notification.dcHot1 >= 25)) {
 			_showIESI = 1;
 			if (notification.acconfig != 1 and notification.iesiInit != 1) {
 				iesi_init.setBoolValue(1);
@@ -213,9 +212,19 @@ var canvas_IESI = {
 				iesi_init.setBoolValue(1);
 				_IESITime = notification.elapsed_seconds - 87;
 			}
-		} else {
-			_showIESI = 0;
-			iesi_init.setBoolValue(0);
+		} elsif (notification.iesiInit) {
+			if (!me._transientVar) {
+				me._transientVar = 1;
+				settimer(func() {
+					if (systems.ELEC.Bus.dcEss.getValue() >= 25 or (systems.ELEC.Bus.dcHot1.getValue() >= 25 and systems.ELEC.Relay.relay7XB.getValue())) {
+						me._transientVar = 0;
+					} else {
+						_showIESI = 0;
+						iesi_init.setBoolValue(0);
+						me._transientVar = 0;
+					}
+				}, 0.2);
+			}
 		}
 		
 		if (_showIESI and notification.iesiBrt > 0.01) {
@@ -271,6 +280,7 @@ var input = {
 	"qnh_inhg": "/instrumentation/altimeter[0]/setting-inhg",
 	"roll": "/orientation/roll-deg",
 	"skid": "/instrumentation/iesi/slip-skid",
+	"relay7XB": "/systems/electrical/sources/si-1/inverter-control/relay-7xb",
 };
 
 foreach (var name; keys(input)) {
diff --git a/Nasal/Systems/electrical.nas b/Nasal/Systems/electrical.nas
index 1ff311e2..4089fcd3 100644
--- a/Nasal/Systems/electrical.nas
+++ b/Nasal/Systems/electrical.nas
@@ -90,6 +90,7 @@ var ELEC = {
 		glc2: props.globals.getNode("/systems/electrical/relay/gen-2-glc/contact-pos"),
 		tr1Contactor: props.globals.getNode("/systems/electrical/relay/tr-contactor-1/contact-pos"),
 		tr2Contactor: props.globals.getNode("/systems/electrical/relay/tr-contactor-2/contact-pos"),
+		relay7XB: props.globals.getNode("/systems/electrical/sources/si-1/inverter-control/relay-7xb"),
 	},
 	SomeThing: {
 		emerGenSignal: props.globals.getNode("/systems/electrical/some-electric-thingie/emer-gen-operate"),