Flowserve 3400IQ Digital Positioner - Manual (Page 32)

Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07
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6.3 Logix 3400IQ Digital Positioner Configuration
Process
Logix 3400IQ Digital Positioner Configuration
Configuration of the Logix 3400IQ digital positioner (device) involves the following steps:
1. Establishing communication between the operator interface and the device (bringing the
Logix 3400IQ digital positioner on-line in a fieldbus network). See Section 6.7, Establishing
Communications.
2. Making initial checks on the device serial number and firmware revision numbers. See Section
6.8, Making Initial Checks.
3. Using a fieldbus configuration application, creating or making changes to the device configura-
tion. See Section 6.9, Configuration Tasks.
4. Writing the device configuration changes to the device. See Section 6.9, Configuration Tasks.
5. Saving device configuration to disk. See Section 6.9, Configuration Tasks.
6.4 Device Configuration
Function Block Application Process
All fieldbus devices contain one or more Function Block Application Processes (FBAP) as part of
their device configuration. The FBAP in the Logix 3400IQ digital positioner is a software application
that defines the particular characteristics of the Logix 3400IQ digital positioner. The FBAP comprises
function blocks, a transducer block and a resource block, plus other functions which support these
blocks. Each function block contains a set of operating parameters (some of which can be user-
configured) that define the operating characteristics of the Logix 3400IQ digital positioner.
Function blocks perform (or execute) their specific functions according to a schedule. This schedule
provides the sequence and timing of events which occur within a device and also between other
fieldbus devices. This schedule is coordinated with the function block execution schedules in the
device and other fieldbus devices on the network. Additional information on the FBAP contained in
the Logix 3400IQ digital positioner is found in Section 8, Device Configuration.
Fieldbus Configuration Application
The Logix 3400IQ digital positioner is configured using a fieldbus configuration application running
on a operator station or host computer. The configuration tool allows the user to:
Connect function block inputs and outputs according to the process requirements.
Make changes to function block parameters according to the process requirements
Make changes to the schedule of function block execution.
Write the FBAP changes to the device.
Mechanical Configuration Issues
Air Action Air-to-open and Air-to-close are determined by the actuator tubing, not the software. When
air action selection is made during configuration, the selection is telling the control which way the
actuator is tubed. The tubing should be verified as correct prior to a stroke calibration. The top output
port on the positioner is called port 1. It should be tubed to the increase open side of the actuator.
That is, for an air-to-open actuator, port 1 should go to the bottom of the actuator.
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