Siemens SIPROCESS GA700 Quick Start Manual page 58

Commissioning
7.7 [2.09.3] Digital inputs
Table 7- 8 Function assignment at function (pre-selection): "Other functions"
Function Trigger
Switch pump
Measuring protection
Ack. curr. mess.
Software reset
"Level-triggered": activation by negative signal edge, deactivation by positive signal edge. Active at signal level "High".
1)
"Edge-triggered" activation through positive signal edge.
2)
Requirement: optional gas management module is installed.
3)
58
Remark / effect
Switch sample gas pump
The pump is switched on at a positive edge and switched off at a negative
Positive/negative
edge.
edge
1)
Activate measuring protection.
If you activate this function by means of a digital input, the device does not
Positive/negative
exit the "Measurement" operating state any more.
edge
1)
The measuring protection is only set if the following requirements are met:
The device is in "Measurement" operating state.
•
There is no ongoing simulation.
•
The device is not in "Function check" operating state.
•
No user is logged on.
•
Parameters cannot be changed during active measuring protection.
A corresponding message is displayed in the status bar of the display.
The measuring protection is set with a delay under the following conditions:
As long as function check is active.
•
As long as the operating state is not "Measurement".
•
As long as an already started calibration is still running (including
•
expiration of the sample gas purging time)
If a calibration was triggered by a digital input, until the end of the
•
calibration or until the trigger is discarded.
If an AutoCal/AutoVal is pending and its execution is delayed.
•
As long as an AutoCal/AutoVal is running, including sample gas
•
intermediate operation
Acknowledge current messages.
As long as the cause of a fault, a maintenance alarm, or a maintenance
Positive edge
2)
demand has not been remedied, the corresponding message is still
pending.
Messages are not acknowledged in the logbook but in the message list.
Software reset
Positive edge
2)
.
3)
Compact Operating Instructions, 01/2013, A5E31805656-01
Quick Start