AO2000
CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B
113
Connections of the standard function block applications
Status signals/Externally controlled calibration:
Single status signals:
Overall status signal:
DO1 Failure
Overall
status
DO2 Maintenance
mode
Limit
value
DO3
Maintenance request
Limit value
DO4
External solenoid valve
External solenoid valve
DI1
Start automatic calibration
Start automatic calibration
DI2
Inhibit automatic calibration
Inhibit automatic calibration
DI3
Adjust zero point
Adjust zero point
DI4
Adjust end point
Adjust end point
Measuring range control:
DO1
Measuring range feedback
DO2
Measuring range feedback
DO3
Measuring range feedback
DO4
Measuring range feedback
DI1
Measuring range switch-over
DI2
Measuring range switch-over
DI3
Measuring range switch-over
DI4
Measuring range switch-over
Limit values:
DO1 Limit
value
DO2 Limit
value
DO3 Limit
value
DO4 Limit
value
DI1
Calibration cells in/out
DI2
Hold current output
DI3 Pump
on/off
DI4 External
failure
Calibration control:
DO1
External solenoid valve sample gas
DO2
External solenoid valve zero gas
DO3
External solenoid valve span gas
DO4
External pump on/off
DI1 Pump
on/off
DI2 External
failure
DI3 External
failure
DI4 External
failure