work on PLC comms
This commit is contained in:
Mikayla Fischler
@@ -1,8 +1,8 @@
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function scada_link(comms)
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function scada_link(plc_comms)
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local linked = false
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local link_timeout = os.startTimer(5)
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comms.send_link_req()
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plc_comms.send_link_req()
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print_ts("sent link request")
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repeat
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@@ -12,31 +12,40 @@ function scada_link(comms)
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if event == "timer" and param1 == link_timeout then
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-- no response yet
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print("...no response");
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comms.send_link_req()
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print_ts("sent link request")
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link_timeout = os.startTimer(5)
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elseif event == "modem_message" then
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-- server response? cancel timeout
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if link_timeout ~= nil then
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os.cancelTimer(link_timeout)
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end
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local packet = comms.make_packet(p1, p2, p3, p4, p5)
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-- handle response
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local response = comms.handle_link(packet)
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if response == nil then
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print_ts("invalid link response, bad channel?\n")
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return
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elseif response == true then
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print_ts("...linked!\n")
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linked = true
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else
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print_ts("...denied, exiting\n")
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return
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local s_packet = comms.scada_packet()
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s_packet.receive(p1, p2, p3, p4, p5)
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local packet = s_packet.as_rplc()
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if packet then
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-- handle response
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local response = plc_comms.handle_link(packet)
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if response == nil then
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print_ts("invalid link response, bad channel?\n")
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break
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elseif response == comms.RPLC_LINKING.COLLISION then
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print_ts("...reactor PLC ID collision (check config), exiting...\n")
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break
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elseif response == comms.RPLC_LINKING.ALLOW then
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print_ts("...linked!\n")
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linked = true
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plc_comms.send_rs_io_conns()
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plc_comms.send_struct()
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plc_comms.send_status()
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print_ts("sent initial data\n")
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else
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print_ts("...denied, exiting...\n")
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break
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end
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end
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end
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until linked
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return linked
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end
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-- Internal Safety System
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@@ -44,13 +53,15 @@ end
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-- autonomous from main control
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function iss_init(reactor)
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local self = {
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_reactor = reactor,
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_tripped = false,
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_trip_cause = ""
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reactor = reactor,
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timed_out = false,
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tripped = false,
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trip_cause = ""
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}
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local check = function ()
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local status = "ok"
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local was_tripped = self.tripped
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-- check system states in order of severity
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if self.damage_critical() then
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@@ -63,59 +74,100 @@ function iss_init(reactor)
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status = "full_waste"
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elseif self.insufficient_fuel() then
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status = "no_fuel"
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elseif self._tripped then
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status = self._trip_cause
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elseif self.tripped then
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status = self.trip_cause
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else
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self._tripped = false
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self.tripped = false
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end
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if status ~= "ok" then
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self._tripped = true
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self._trip_cause = status
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self._reactor.scram()
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self.tripped = true
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self.trip_cause = status
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self.reactor.scram()
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end
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local first_trip = ~was_tripped and self.tripped
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return self._tripped, status
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return self.tripped, status, first_trip
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end
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local trip_timeout = function ()
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self.tripped = false
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self.trip_cause = "timeout"
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self.timed_out = true
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self.reactor.scram()
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end
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local reset = function ()
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self._tripped = false
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self._trip_cause = ""
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self.timed_out = false
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self.tripped = false
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self.trip_cause = ""
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end
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local status = function (named)
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if named then
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return {
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damage_critical = damage_critical(),
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excess_heated_coolant = excess_heated_coolant(),
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excess_waste = excess_waste(),
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high_temp = high_temp(),
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insufficient_fuel = insufficient_fuel(),
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no_coolant = no_coolant(),
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timed_out = timed_out()
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}
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else
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return {
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damage_critical(),
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excess_heated_coolant(),
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excess_waste(),
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high_temp(),
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insufficient_fuel(),
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no_coolant(),
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timed_out()
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}
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end
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end
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local damage_critical = function ()
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return self._reactor.getDamagePercent() >= 100
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return self.reactor.getDamagePercent() >= 100
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end
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local excess_heated_coolant = function ()
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return self._reactor.getHeatedCoolantNeeded() == 0
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return self.reactor.getHeatedCoolantNeeded() == 0
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end
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local excess_waste = function ()
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return self._reactor.getWasteNeeded() == 0
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return self.reactor.getWasteNeeded() == 0
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end
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local high_temp = function ()
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-- mekanism: MAX_DAMAGE_TEMPERATURE = 1_200
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return self._reactor.getTemperature() >= 1200
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return self.reactor.getTemperature() >= 1200
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end
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local insufficient_fuel = function ()
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return self._reactor.getFuel() == 0
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return self.reactor.getFuel() == 0
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end
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local no_coolant = function()
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return self._reactor.getCoolantFilledPercentage() < 2
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local no_coolant = function ()
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return self.reactor.getCoolantFilledPercentage() < 2
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end
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local timed_out = function ()
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return self.timed_out
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end
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return {
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check = check,
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trip_timeout = trip_timeout,
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reset = reset,
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status = status,
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damage_critical = damage_critical,
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excess_heated_coolant = excess_heated_coolant,
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excess_waste = excess_waste,
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high_temp = high_temp,
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insufficient_fuel = insufficient_fuel,
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no_coolant = no_coolant
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no_coolant = no_coolant,
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timed_out = timed_out
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}
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end
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@@ -37,11 +37,13 @@ if not modem.isOpen(config.LISTEN_PORT) then
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modem.open(config.LISTEN_PORT)
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end
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local comms = comms.rplc_comms(config.REACTOR_ID, modem, config.LISTEN_PORT, config.SERVER_PORT, reactor)
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local plc_comms = comms.rplc_comms(config.REACTOR_ID, modem, config.LISTEN_PORT, config.SERVER_PORT, reactor)
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-- attempt server connection
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-- exits application if connection is denied
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plc.scada_link(comms)
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-- exit application if connection is denied
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if ~plc.scada_link(plc_comms) then
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return
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end
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-- comms watchdog, 3 second timeout
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local conn_watchdog = watchdog.new_watchdog(3)
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@@ -51,28 +53,47 @@ local conn_watchdog = watchdog.new_watchdog(3)
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local loop_tick = os.startTimer(0.05)
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local ticks_to_update = 5
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-- runtime variables
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local control_state = false
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-- event loop
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while true do
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local event, param1, param2, param3, param4, param5 = os.pullEvent()
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if event == "peripheral_detach" then
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print_ts("[fatal] lost a peripheral, stopping...\n")
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-- todo: determine which disconnected and what is left
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-- hopefully it wasn't the reactor
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reactor.scram()
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-- send an alarm: plc_comms.send_alarm(ALARMS.PLC_DC) ?
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return
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end
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-- check safety (SCRAM occurs if tripped)
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local iss_status, iss_tripped = iss.check()
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local iss_status, iss_tripped, iss_first = iss.check()
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if iss_first then
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plc_comms.send_iss_alarm(iss_status)
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end
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-- handle event
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if event == "timer" and param1 == loop_tick then
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-- basic event tick, send updated data if it is time
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-- basic event tick, send updated data if it is time (4Hz)
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ticks_to_update = ticks_to_update - 1
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if ticks_to_update == 0 then
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plc_comms.send_status(control_state, iss_tripped)
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ticks_to_update = 5
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end
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elseif event == "modem_message" then
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-- got a packet
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-- feed the watchdog first so it doesn't eat our packets
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-- feed the watchdog first so it doesn't uhh,,,eat our packets
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conn_watchdog.feed()
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local packet = comms.make_packet(p1, p2, p3, p4, p5)
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plc_comms.handle_packet(packet)
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elseif event == "timer" and param1 == conn_watchdog.get_timer() then
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-- haven't heard from server recently? shutdown
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reactor.scram()
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iss.trip_timeout()
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print_ts("[alert] server timeout, reactor disabled\n")
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end
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end
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