ProSoft Technology 5204SE-MNET-PDPMV1 - Manual (Page 176)

5204SE-MNET-PDPMV1 ♦ ProLinx Gateway Reference
Modbus TCP/IP to PROFIBUS DP-V1 Pass-Through Master User Manual
Page 176 of 235
ProSoft Technology, Inc.
December 22, 2009
DFB Acyclic Mailbox Message: Start/Stop Slave - Quantum
This acyclic message stops or starts a selection of slaves. Stopping a slave or
group of slaves removes them from the normal cyclic data polling cycle. Starting
a slave or group of slaves returns them to the normal polling cycle.
This message is allowed in all Operation modes (STOP, CLEAR and
OPERATE).
Note: The message will be accepted even if one or several slaves are not part of the configuration
and can therefore obviously not be started. The application can however find out about this
situation by evaluating the "Fault information" and "Message data words" of the response.
MNETDPV1_MAILVAR_StartStopSlaves Variables - Quantum
This variable structure is the one to use with your control and sequencing logic
when you want to send a PROFIBUS Master acyclic message to start or stop
one or more slaves.