Accumulator Commands - Metasys - LIT-12011942 - "" - Software Application - Metasys Open Data Server

Accumulator Commands - Metasys - LIT-12011942 - "" - Software Application - Metasys Open Data Server - 10.1

Metasys Open Data Server Help

Product name

Metasys Open Data Server

Document type

User Guide

Document number

LIT-12011942

Version

10.1

Revision date

14/10/2019

The table below lists the commands supported by the Accumulator Object.

Table 1. Accumulator Object Commands
Command Name	Parameters	Description
Disable Alarms	None	Disables all types of alarming: alarm extensions, BACnet intrinsic alarming, and BACnet Event Enrollment objects.
Enable Alarms	None	Enables all types of alarming: alarm extensions, BACnet intrinsic alarming, and BACnet Event Enrollment objects.
Get Monitor Data	None	The Accumulator object and the object specified by the Logging Object Reference must reference one another for the Get Monitor Data command to work. On the Action Tables tab of the object specified by the Logging Object Reference, the Accumulator object must be set to receive the Get Monitor Data command. In the JCI Logging Object Reference field of the Accumulator object, the object issuing the Get Monitor Data command must be selected. When the JCI Logging Object Reference is specified, the Logging Object Reference takes on the object type and instance of the specified object. The object specified by the Logging Object Reference can be a Multiple Command object or an Interlock object. Both are capable of issuing the Get Monitor Data command. Acquires and updates the Logging Record when the object specified by the Logging Object Reference issues the Get Monitor Data command.
In Service	None	A third-party BACnet accumulator behaves according to the design of the third-party vendor. Cancels the effect of an Out of Service write or command. The Present Value and Reliability revert to the values obtained from the physical input. The Present Value attribute continues to receive inputs from the hardware input while in the Out of Service state and continues to increment its count internally. When the Out of Service is cancelled, the Present Value attribute of the N2, FEC, or Other Accumulator updates with this new internal count.
Out of Service	The value to be written to the Present Value attribute.	Allows a user to override the object’s hardware input for simulation or other purposes. The Out Of Service command writes the Present Value to the value of the command parameter and writes the Reliability attribute to Reliable. The Present Value and Reliability no longer track the physical input, but the N2, FEC, or Other Accumulator continues to track pulses while out of service. When placed back in service, the Present Value resumes counting pulses. When an Out Of Service command is issued, the NxE does not communicate subsequent changes (operator or system) to the field device. A third-party BACnet accumulator behaves according to the design of the third-party vendor.
Preset Counter	The value to be written to the N2 device accumulator or pulse counter hardware point.	Allows you to set the value to write to the N2 device accumulator or pulse counter hardware point. You cannot adjust this attribute for a UNT or AHU. This attribute may be used with DX-9100, XTM, or XT hardware.
Present Value	The value to be written to the Value Set attribute.	Allows you to reset the Present Value. This command writes a supplied value to the Value Set attribute. The Present Value attribute then gains its value from the value written to the Value Set attribute. The Value Before Change takes on the previous value of the Present Value attribute (that is, the original value before the write processed), and the Value Change Time is set to the current date and time. This preserves the Present Value before the command took place. Use this command to change Present Value if the Accumulator object is in or out of service.