48
Installation and Operation Manual
X-DPT-Profibus-DP-Interface-eng
PN 541-C-068-AAG
November, 2008
For a Smart Mass Flow Meter this command only applies to the command
byte (if enabled). The sync/unsync feature allows (e.g.) an application start or
stop a number of totalizers at the same time.
E.g. the Sync bit is set in a global control command message, any subsequent
setpoint entered through the network will not be processed. Up on the reception
of global control command message with the Unsync bit set, the last entered
setpoint will be processed. This allows a gas flow application, involving multiple
Mass Flow Controllers to synchronize the flow of gas in a process chamber.
NOTE
:
The sync/unsync command only applies to the data entered or set through data
exchange request message. It does NOT apply to the analogue entered
setpoint or valve override command.
