Siemens SIPROCESS GA700 Operating Manual page 144

Functions
6.8 [2.09] Settings > Inputs/outputs
Assignments of function (pre-selection) - function
Note
Assignment rule
To assign a function, you first make a pre-selection and then set a function that is included in
the pre-selection: → Setting digital inputs (Page 148).
The device excludes the multiple assignment of functions. When you assign a function, this
function is no longer available for other digital inputs. Although the already assigned function
continues to be listed, it can no longer be adopted. Instead the device outputs an error
message.
The list below includes all functions that you can control digitally. The information in the
"Trigger" column applies to the "High" setting. The signals or signal edges are inverted at
"Low".
Table 6- 17 Function assignment at function (pre-selection): "Free"
Function Trigger
Free
Table 6- 18 Function assignment at function (pre-selection): " Ext. fault", "Ext. maint. alarm", "Ext. maint. demand" or "Ext.
maint. required"
Function Trigger
Fault 1 to 8
Maint. alarm 1 to 8
Maint. demand. 1 ...
8
Maint. required 1 to 8
"Level-triggered": With the parameter assignment digital input active when "High" ⇒ activation by a rising edge (level =
1)
HIGH /deactivation by a falling edge (level = LOW). Active at signal level "High".
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Remark / effect
- Digital input is free: no function assignment.
Remark / effect
External fault 1 to 8
Negative/positive
edge
1)
External maintenance alarm 1 to 8
Negative/positive
edge
External maintenance demand 1 to 8
Negative/positive
edge
External maintenance required 1 to 8: user-defined signal
Negative/positive
edge
Operating with the Local User Interface
Operating Manual, 06/2017, A5E31930478-05