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Chapter 5 Configuring the PM135
General Meter Setup
PM135 Powermeter Series
89
Table 14: Counter Options
Option
Range
Default
Description
Pulse Input
None,
DIGITAL INPUT #1 - #12
None
Links a digital input
to the counter
Multiplier
1-9999
1
The value added to
the counter when a
pulse is detected on
the pulse source
input
Counter Value
Displays the present
counter contents
Figure
5-11: General Setup Dialog Box – Pulse/Event Counters
You can preset a counter to a required value or clear it without affecting
the counter setup.
To preset or clear a counter:
1.
Click the Online button on the PAS
toolbar before accessing the setup
dialog box.
2.
Type in the required value into the
Counter Value
field.
3.
Click
Send
Configuring Alarm/Control Setpoints
The PM135 has an embedded logical controller that can perform different
actions in response to user-defined internal and external events. Unlike a
PLC, the meter uses a simplified programming technique based on
setpoints that allows the user to define a logical expression based on
measured analog and digital values that produce a required action.
The meter provides 16 control setpoints with programmable operate and
release delays. Each setpoint evaluates a logical expression with one
trigger argument. Whenever an expression is evaluated as “true”, the
setpoint performs a programmable action that can send a command to the
output relay, or increment a counter.
The logical controller provides very fast response to events. The scan time
for all setpoints is 1 cycle time (16.6 ms at 60Hz and 20 ms at 50/400
Hz).