Emerson Process Management 2400S Pacemaker User Manual


 
Configuration and Use Manual 57
Optional Configuration
Required Configuration Optional ConfigurationUsing the TransmitterUsing a PROFIBUS Host Required Configuration Optional ConfigurationUsing the TransmitterUsing a PROFIBUS Host Required Configuration Optional ConfigurationUsing the TransmitterUsing a PROFIBUS Host Required Configuration Optional ConfigurationUsing the TransmitterUsing a PROFIBUS Host
8.6 Configuring events
An event occurs if the real-time value of a user-specified process variable varies above or below a
user-specified value, or inside or outside a user-specified range. You can configure up to five events.
You may optionally specify one or more actions that will occur if the event occurs. For example, if
Event 1 occurs, you may specify that the transmitter will stop all totalizers and inventories and reset
the mass totalizer.
8.6.1 Defining events
To define an event:
Using ProLink II, see Figure C-3.
Using a PROFIBUS host with the EDD, see Figure C-9.
Using PROFIBUS bus parameters, use the Diagnostic block (see Table D-4).
The following general steps are required:
1. Select the event to define (Diagnostic block, Index 4).
2. Specify the Event Type (Diagnostic block, Index 5). Event Type options are defined in
Table 8-5.
3. Assign a process variable to the event (Diagnostic block, Index 8).
Table 8-4 Effect of flow direction on totalizers and flow values
Flow direction value
Forward flow
(1)
(1) Process fluid flowing in same direction as flow direction arrow on sensor.
Flow totals Flow values
Forward only Increase Positive
Reverse only No change Positive
Bidirectional Increase Positive
Absolute value Increase Positive
(2)
(2) Refer to the digital communications status bits for an indication of whether flow is positive or negative.
Negate/Forward only No change Negative
Negate/Bidirectional Decrease Negative
Flow direction value
Zero flow
Flow totals Flow values
All No change 0
Flow direction value
Reverse flow
(3)
(3) Process fluid flowing in opposite direction from flow direction arrow on sensor.
Flow totals Flow values
Forward only No change Negative
Reverse only Increase Negative
Bidirectional Decrease Negative
Absolute value Increase Positive
(2)
Negate/Forward only Increase Positive
Negate/Bidirectional Increase Positive