Ulvac UTM300B Instruction Manual page 99

Appendix A COMMUNICATIONS
A5
COMMAND DESCRIPTION
A5.1 Operation Mode
LS
LN
Commands
LF
LL
LR
Answers
LC
LD
A-14
Operation mode check
Enables operation mode verification (LOCAL / REMOTE / RS-232C / RS-485)
Action : returns an ANSWER showing present operation mode.
ON-LINE request
If the current operation mode is REMOTE, the operation mode is shifted to RS-232C
or RS-485. This command is ineffective in other operation modes.
Action : returns an ANSWER showing the present operation mode.
OFF-LINE request
If the current operation mode is RS-232C or RS-485, the operation mode is shifted to
REMOTE. This command is ineffective in other operation modes.
Action : returns an ANSWER showing the present operation mode.
Operation mode LOCAL
This answer is returned when the operation mode is LOCAL.
The operation mode can also be shifted to LOCAL mode by the local switch.
In this "LOCAL" mode, the operation of the pump is valid only by local switch
Operation mode REMOTE
This answer is returned when the operation mode is REMOTE.
This operation mode can also be shifted to REMOTE mode by switching to
"REMOTE" mode with a local switch and "OFF-LINE" is demanded from serial
communications.
In this "REMOTE" mode, the operation of the pump is valid only by signal from
remote-control connector.
Operation mode RS-232C
This answer is returned when the operation mode is RS-232C. The operation mode
is shifted to RS-232C when the "ON-LINE" request command is sending via RS-
232C in the remote operation mode.
In this "RS-232C" mode, the operation of the pump is valid only by command via RS-
232C.
Operation mode RS-485
This answer is returned when the operation mode is RS-485. The operation mode is
shifted to RS-485 when the "ON-LINE" request command is sending via RS-485 in
the remote operation mode.
In this "RS-485" mode, the operation of the pump is valid only by command via RS-
485.