Rinstrum AxleweighR R420, Справочное руководство

Страница: 107 / 142

Reference Manual Rev 1.13
004R-646-113
Page 107
17. Setpoints
17.1. Overview
The K404, K405 and K422 software supports up to 8 separate set points. Each set
point is independently configured for a particular function and can be associated
with a particular Output Driver. The set point can be configured to flash the
instrument display or sound a buzzer as well as driving a physical output.
A set point target is set by the operator using the Target Key on the front panel or
via Viewer using the Operator Menu. Refer to 5.12 Target page 33 for button
operation.
17.2. Outputs
The instrument supports 32 input/output control points. The application software
uses these control points to decide what the control functions are and the accessory
modules respond according to their specific hardware.
Setpointing requires the use of outputs so it is important to select IO control points
that have associated hardware output drivers that suit your application.
17.3. Common Settings
There are a number of settings that are common to all setpoint types. These are as
follows:

OUTPUT : Select which IO control point to use. Options are NONE,
IO1..IO32. NONE is useful if the setpoint is only being used trigger an
alarm.

LOGIC : This setting determines whether the output is normally on or
normally off. Logic HIGH means the output follows the activity of the
setpoint and is on when the setpoint conditions are met. Logic LOW
reverses the operation of the output.
For example: Consider a Center-of-Zero status setpoint. This type of
setpoint is active when the Centre-of-Zero annunciator is lit. With logic
HIGH an output would turn on whenever the Centre-of-Zero annunciator
was lit. With logic LOW the output would turn off when the Centre-of-Zero
annunciator is lit and remain on otherwise.
Note that the outputs revert to the off state when the instrument SETUP
menus are active.

ALARM : Select what alarm response is triggered when the setpoint is
active. SINGLE sounds a single beep every two seconds, DOUBLE
sounds a double beep every two seconds and FLASH flashes the
instrument display. Note that the Alarm conditions are not influenced by
the LOGIC setting, i.e. they follow the activity of the setpoint regardless of
the physical state of the output.

TIMING(K404 and K405 only) : Select the output timing of the setpoint.
The following examples are explained in the context of an OVER setpoint
however the timing options are available for all setpoint types.

LEVEL: the setpoint is active whenever the weight has gone over the
target, has not dropped below the hysteresis value and the reset input
is not currently active.