Emerson Bristol ControlWave Express Manual de usuario descargar pdf (Pagina 10)

Product Data Document

420DS-3d

July 16, 2007 - Page 10

Bristol

ControlWave

Designer

Remote Automation Solutions

Website: www.EmersonProcess.com/Remote

Function Block

Name

Description

R_INT Truncates a value to an integer, eliminating any fractional Portion.

R_RND Rounds an input value up to the next highest integer.

REDUN_SWITCH Performs a software controlled fail-over to the Redundant Standby unit in a redun-

dant system

REG_ARRAY Allows the user to register arrays for the purpose of retrival by the external HMI

systems

SCHEDULER Block is used to equalize the elapsed running time of a number of external devices

such as pumps and motors. It provides a device work list that can be scheduled by

one of four algorithms that determine the sequence operation

SEQUENCER Block is used in applications where a number of operations must be performed on

a repetitive or sequential basis such as valve sequencing. The function block ac-

cepts a list of up to 255 BOOL inputs and provides output to a corresponding list of

BOOL outputs. These inputs and outputs can represent valve patterns

STEPPER The Stepper Module performs a series of sequential operations on a number of

outputs (1-255). It is particularly useful in applications where external equipment

must be activated in sequence for certain xed time periods, such as during water

lter backwash operations

TOT_TRND Totalizes a scaled input value over a set of xed time intervals.

VAR_ATTRIB, VAR_CI Provides software control of the Manual, Inhibit and Alarm attributes

VIRT_PORT Provides serial port expansion through a terminal server

VLIM Limits the rate of change of an output

VMUX Permits the user to retrieve the value of a variable from a list of variables and

modify the output until it equals the input

1 2 3 4 5 6 7 8 9 10

Sin comentarios

Emerson Bristol ControlWave Express Manual de usuario Pagina 10