Automated Logic RC642D User Manual

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After you download the driver and control program(s) to the Room Controller, you may

want to change the driver's properties to suit your application.

1 On WebCTRL's NET tree, click to the left of your Room Controller.

2 Click

to the left of Driver to see its children.

3 Make changes as needed on the Properties page for Driver and any of its children.

On the Driver page, you can change the following properties:

• Module clock synchronization and failure. See table below.

• Network Input microblock communication properties.

Module Clock

Clock Fail Date and Time

Date and time control program uses when controller's real-

time clock is invalid.

TIP

Use an occupied date and time (such as a Tuesday at

10 a.m.) so the equipment does not operate in unoccupied

mode if the controller loses power during occupancy.

Time Synch Sensitivity

(seconds)

When the controller receives a time synch, if the difference

between the controller's time and the time synch's time is

greater than this field's value, the controller's time is

immediately changed. If the difference is less than this

field's value, the controller's time is slowly adjusted until the

time is correct.

BACnet COV Throttling

Enable COV Throttling

Under normal circumstances, COV Throttling should be

enabled to prevent excessive network traffic if an object's

COV Increment is set too low. See EXCEPTION below.

When enabled, if an object generates excessive COV

broadcasts (5 updates in 3 seconds), the driver

automatically throttles the broadcasts to 1 per second.

Also, if the object's value updates excessively for 30

seconds, an alarm is sent to WebCTRL listing

all objects

that are updating excessively. A Return-to-normal alarm is

sent only after

all

EXCEPTION: In rare circumstances, such as process

control, a subscribing object may require COV updates more

frequently than once per second. For these situations, clear

this checkbox, but make sure that your network can support

the increased traffic. You will also need to disable the

Excessive COV

alarms under the driver's

Common Alarms

objects have stopped updating

excessively.

To set up the driver

Driver

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Automated Logic RC642D Specifications

General

Model	RC642D
Input Voltage	24 VAC
Communication Protocol	BACnet MS/TP
Number of Inputs	6
Number of Outputs	4
Relative Humidity	10% to 90% non-condensing
Input Type	Universal (thermistor/dry contact/voltage/current)
Output Type	Digital
Operating Temperature	0°C to 50°C
Memory	Flash memory for firmware and application storage