Liebert 30-130kVA manual 1 RS-232 Port Local Reporting Terminal, Worldwide Reporting, Auto-Dial

Operation

3.5.1RS-232 Port: Local Reporting Terminal

The Npower transmits UPS system status and history information to a remote terminal through an RS-232 Port in ASCII Format. This feature is called the Service Terminal. The service terminal inter- face is intended to be accessed via PC terminal emulation software like Procomm Plus, Microsoft Win- dows Terminal or Hyperterminal, or directly through a standard ASCII terminal.

A summary of Npower service terminal commands is provided in Table 8 below. Two types of com- mands are identified: operational (OPS) and diagnostic (DIAG). Operational commands deal prima- rily with machine operations: metering, alarm events and transient analysis. This information is also available through the front panel Operator interface. Diagnostic commands are intended to allow manipulation of the internal machine operating parameters. Access to these commands is limited through password protection.

Table 8 Service terminal command summary

Command	Type	Description
?	OPS	Reports a command listing (same as HELP?) OR provides help with specific
		commands.
AA?	OPS	Reports active alarms.
AF?	OPS	Reports active faults.
DATE?	OPS	Reports the current date.
EL?	OPS	Reports entire event log, most recent on top.
HELP?	OPS	Reports a command listing (same as?) OR provides help with specific commands.
HL?	OPS	Reports the entire requested history log (comma delimited) if frozen, from oldest frame
		to newest.
SPT?	OPS	Reports setpoints for group number.
SR?	OPS	Reports active status reports.
TIME?	OPS	Reports the current time in military format.
UPMDR?	OPS	Reports metering data using real values.

In addition to the local RS-232 Port, Npower will interface with an External modem which uses the same ASCII command set. Likewise the SiteScan port can support SiteScan communications. What- ever communication options are installed in the Npower UPS can all be used simultaneously.

3.5.2Worldwide Reporting

The Npower has a standard Interface Terminal Block to connect to an optional external modem. An internal optional modem can also be installed, although the external modem cannot be utilized if the system is configured with an internal modem. The internal modem is compatible with standard ana- log telephone lines and most standard telephone equipment. The internal or external modems allow you to configure the UPS to:

1.Make outgoing calls to a computer in an attempt to notify of a pressing alarm condition.

2.Accept incoming calls so a remote computer can connect to the UPS and serve as a monitoring station.

3.Make outgoing calls to a pager.

Auto-Dial

The Npower will automatically dial a pre-programmed (customer-selected) phone number when spec- ified alarm conditions occur. The auto-dial phone number, an alternate number, and the modem baud rate are programmed by using the System Configuration screen. (See Options Manual for program- ming instructions.) The alarm messages that initiate an auto-dial call are identified in Table 7.

When the auto-dial function is initiated, automatic dial attempts three times to dial the first phone number at 45 second intervals. If unanswered, the system rolls over to the second number and repeats the sequence. After three tries on each line, the auto dial function is discontinued, at which point the pager module (See Dial Out Pager on page 90) gains access to the modem.

Once a connection is made, the system transmits the information on the Present Status Report screen, then hangs up. The Present Status Report in ASCII Format includes the UPS system identifi- cation number, date, time, alarm messages and metered parameter indications.

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