SATEC EM132-133 Manual User Manual

Page 81

‎Chapter 5 Configuring T H E E M 1 3 X S E R I E S

EM13x Series SMART MULTIFUNCTION METER

Option

Range

Description

Trigger

parameter

See Appendix C

The trigger parameter that is used as an

argument in the logical expression

Operate limit

The threshold (in primary units) at which

the conditional expression would be

evaluated to true. Not applicable for digital
triggers.

Release limit

The threshold (in primary units) at which

the conditional expression would be

evaluated to false. Defines the hysteresis

for analog triggers. Not applicable for

digital triggers.

Operate delay

0.1-999.9 sec

The time delay before operation when the

operate conditions are fulfilled

Release delay

0.1-999.9 sec

The time delay before release when the

release conditions are fulfilled

Action

See Appendix C The action performed when the setpoint

expression is evaluated to true (the
setpoint is in operated state)

Using Numeric Triggers

For numeric (analog) triggers, you can specify two thresholds for each
trigger to provide hysteresis (dead band) for setpoint operations.

The Operate Limit defines the operating threshold, and the second
Release Limit defines the release threshold for the trigger. The trigger
thresholds are specified in primary units.

If you do not want to use hysteresis for the trigger, set the Release
Limit to the same value as the Operate Limit.

Using Binary Triggers

Binary (digital) triggers like digital inputs and relays are tested for
ON/CLOSED or OFF/OPEN status.

In the PM130, the binary events are level-sensitive events. An event is
asserted all the time while the corresponding condition exists.

Delaying Setpoint Operations

Two optional delays can be added to each setpoint to extend
monitoring triggers for a longer time before reaching a decision on
whether the expected event occurred or not. When a delay is specified,
the logical controller changes the setpoint status only if all conditions
are asserted for a period of at least as long as the delay time.

Using Setpoint Events and Actions

When a setpoint status changes, i.e., a setpoint event is either
asserted or de-asserted, the following happens in your meter:



The new setpoint status is logged to the setpoint status register

that can be monitored through communications from the SCADA
system or from a programmable controller in order to give an

indication on the expected event.



The operated setpoint status is latched to the setpoint alarm latch

Status Display

in Chapter 3). The register holds

the last setpoint alarm status until it is explicitly cleared through
communications or via the display.