Emerson Static Transfer Switch user manual Connecting and Using a Terminal, Terminal commands

Communication Interfaces

12.1.1Connecting and Using a Terminal

An RS-232 connection can be used to connect the Liebert STS2 to either a terminal or a PC running terminal emulation software. If you are unsure of the cable pin out, see 15.2.10 - Terminal Port Connections.

1.Connect the terminal to the Liebert STS2 by plugging the cable from the terminal into the RS-232 port.

This connection can be made at any time.

2.After making the connection, verify the communications link by pressing <ENTER> on the terminal keyboard.

The interface communications system responds as indicated below:

Repeating command --> Illegal command!

<?> or <HELP?> displays the RS-232 command set

<?> <command> or <HELP?> <command> displays specific help for the command SVTP-Control >

The SVTP-Control > prompt indicates that RS-232 communications are established.

•If you receive no response or prompt, verify that the connector is properly plugged into the port and the PC or terminal serial interface is working properly.

3.Enter the desired commands, as listed in Table 9.

For additional help type <?> <command> or <HELP?> <command>

Refer to the corresponding menu options in the 13.0 - Liebert STS2 Touch Screen Display for more details about the commands.

Some terminal commands require a password to function. Use the PWD command and a valid pass- word to gain access.

Table 9	Terminal commands
	Keys	Function
	?	Displays this help menu or specific help with a command
	AA?	Displays active alarms
	AF?	Displays active faults
	CEL	Clears the event log
	CHL	Clears the history logs
	DATE?	Displays current system date
	DATE	Sets system date
	EL?	Displays the entire event log
	HELP?	Displays this help menu or specific help with a command
	HLn?	Displays the history log #n, if frozen
LOGOUT		Logs user out of unprotected mode
	PS?	Displays the preferred source
	PS n	Sets the preferred source to #n
	PWD	Allows users to access protected commands
	QUIT	Modem only. Ends the session and hangs up the modem.
	SH	Silences the horn
	SPT?	Displays all current setpoints
	SPTx	Displays current setpoints for group x. See 12.1.2 - Configuring the Liebert STS2 via
		the Terminal for a description of groups.
	SR?	Displays status reports
	TIME?	Displays current system time
	TIME	Sets system time

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