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5 Configure device options and
preferences
Topics covered in this chapter:
•
Configure response time parameters
•
Configure alarm handling
•
Configure informational parameters
5.1 Configure response time parameters
You can configure the rate at which process data is polled and process variables are
calculated.
Response time parameters include:
•
Update Rate
• Calculation Speed (Response Time)
5.1.1 Configure Update Rate
ProLink II ProLink > Configuration > Device > Update Rate
ProLink III Device Tools > Configuration > Process Measurement > Response > Update Rate
Field Communicator Configure > Manual Setup > Measurements > Update Rate
Overview
Update Rate controls the rate at which process data is polled and process variables are
calculated. Update Rate = Special produces faster and “noisier” response to changes in the
process. Do not use Special mode unless required by your application.
Tip
For systems with a standard core processor, Special mode can improve performance for applications
with entrained air or Empty-Full-Empty conditions. This does not apply to systems with an enhanced
core processor.
Prerequisites
Before setting Update Rate to Special:
• Check the effects of Special mode on specific process variables.
• Contact Micro Motion.
Configure device options and preferences
Configuration and Use Manual 59