Dräger 8000 IC - Page 43

6141.22X Incubator 8000 IC/SC/NC
Function Description
09.99 Page 43 of 49
PA4 A Addressing of Multiplexer (A1)
PA5 A Addressing of Multiplexer (A2)
PA6 E Fan interference/failure
PA7 A Addressing Multiplexer
PB0 A Triggering air heating
PB1 A Triggering humidifier heating
PB2 A Triggering 02-valve 1
PB3 A Triggering 02-valve 2 (not used)
PB4 A Reset over-temperature alarm
PB5 A Check 36 °C
PB6 A Relay over-temperature alarm and relay 02-cut-off
PB7 A Beeper
CA1 free
CA2 A Test +5 V voltage monitoring, upper limit
CB1 free
CB2 A Test +5 V voltage monitoring, lower limit
Assignment of PIA Ports D2, E = input, A = output)
Port Function
PA0 E Code humidity
PA1 E Water shortage
PA2 A DW bus, external alarm (not used)
PA3 E Indication addressing of Multiplexer (A0)
PA4 E Indication addressing of Multiplexer (A1)
PA5 E Indication addressing of Multiplexer (A3)
PA6 E Indication Check 36 °C
PA7 E Indication air heating
PB0 E Code of sensor head position, switch 1
PB1 E Indication humidifier heating
PB2 E Indication 02-valve 1
PB3 E Indication 02-valve 2 (not used)
PB4 E Code of sensor head position, switch 2
PB5 A Test over-temperature comparator
PB6 E NMIQ: evaluation of NMI for cold-/warm start
PB7 E Code mains switch on/off
CA1 free
CA2 free
CB1 free
CB2 E Test fan failure alarm