Operator-defined PCL routines can perform logical and mathematical calculations, and can be automatically executed  or initiated by an event such as a binary input change-of-state or an analog input high or low limit. Each PCL routine can be manually executed, one statement at a time, in a special test mode to allow the operator to verify program logic.

DDC loops provide proportional, integral, and derivative (PID) control of analog output devices. PID gains are operator-defined as constants or as variables calculated in the PCL routines. The operator can graphically plot each DDC loop operation via the UPCM Edit software, to assist in optimizing the performance of controlled devices.

UPCM Edit software also offers the following capabilities:

Ž Current point status screens provide the status of each available hardware and software point. Diagnostic information about each hardware point is also available.

Ž Optional manual overrides on each output card are available. The manual override on a binary output card is an ON/OFF/AUTO switch. The manual override on an analog output card is a potentiometer.

Ž The optional LCD provides monitoring capability and the ability to override points connected to a Universal PCM. This   backlit, 2-line by 40-character display provides an operator interface via eight function keys, and includes four operator-definable status displays capable of displaying 16 points each. A fifth display includes Universal PCM status and diagnostics.

Ž A calendar/time clock is included with the Universal PCM. This clock allows the Universal PCM to completely recover from a power failure with the correct time and date. The clock/calendar is backed by a super capacitor for seven days under normal operating conditions.

Ž Modular packaging of the Universal PCM improves efficiency and makes job site installation easy.

Hardware Description Three versions of the Universal PCM are available: l

Standard ambient:NEMA Type 1 metal enclosure consisting of a steel backplane and a resin cover (32 to 120° F, 0 to 49° C)

Extended ambient:NEMA Type 1 metal enclosure consisting of a steel backplane and a resin cover (32 to 120° F, 0 to  49° C)

Weatherproof: NEMA Type 4 metal enclosure suitable for outdoor use (-40 to 158° F, -40 to 70° C)

In addition to the  enclosures listed above, a unit frame mount is also available. The Universal PCM is UL-approved as a modular energy management panel, allowing field assembly of the modular parts while maintaining UL approval. 

The Universal PCM supports up to six operator-selectable, input/output cards (each with 6 points) for a total of 36 points.

For more information about the Universal PCM, refer to publication

BAS-PD-5.

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