Dräger 8000 IC Function Description page 43

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