ABB Endura AZ series User Manual page 58

Endura AZ series integral and remote transmitter
Combustion oxygen monitor
Parameter
...Input/Output
...Digital I/O 1 (2)
...Output Assignment
Diag. – Failure
Diag. – Off Spec.
Diag. – Maint. Reqd. Activates the output if a Maintenance Required
Diag. – Chk.
Function
Test Gas 1 Valve
Test Gas 2 Valve
Polarity
Active High
Active Low
Input Function
Off
Start Autocal 
Stop Autocal 
Start/Stop Autocal
Start Autocal 
Stop Autocal 
Calibration Type
Table 5.12 Input/Output Menu (Continued)
56
Comment / [Range]
Activates the output if a Failure diagnostic status is
generated – see Section 8.1, page 78.
Activates the output if an Out of Specification
diagnostic status is generated – see Section 8.1,
page 78.
diagnostic status is generated – see Section 8.1,
page 78.
Activates the output if a Check Function diagnostic
status is generated – see Section 8.1, page 78.
Activates the output if test gas 1 valve is open.
Activates the output if test gas 1 valve is open.
Selects whether the digital output is high or low when
any of the assigned states are active.
If the Digital I/O/Mode is Input, selects the function to
be performed by the digital input.
Starts automatic calibration on falling edge
(when a voltage-free switch is closed).
Stops automatic calibration on falling edge
(when a voltage-free switch is closed).
Starts automatic calibration
(voltage-free switch is closed) and stops automatic
calibration on rising edge (voltage-free switch is
open).
Starts automatic calibration on rising edge
(when a voltage-free switch is opened).
Stops automatic calibration on rising edge
(when a voltage-free switch is opened).
Calibration type (for the other I/O's Input Function 'Start..'. [or
'Start/Stop...']) is set by this I/O's digital input.

Low signal (voltage-free switch closed) = One point

High signal (voltage-free switch open) = Two point
5 Programming
Active High
on falling edge
IM/AZ20E–EN Rev. F
Default
Off