ProSoft Technology 5204SE-MNET-PDPMV1 - Manual (Page 102)

5204SE-MNET-PDPMV1 ♦ ProLinx Gateway Reference
Modbus TCP/IP to PROFIBUS DP-V1 Pass-Through Master User Manual
Page 102 of 235
ProSoft Technology, Inc.
December 22, 2009
7 Set Slave Mode - Some PROFIBUS Slaves support capabilities called Sync
and Freeze. These are special command features which allow a PROFIBUS
Master to control when and how a slave updates its internal cyclic inputs and
outputs. These structures give the Master the ability to send these special
kinds of control messages. For detailed information, see DFB Acyclic Mailbox
Message: Set Slave Mode (page 125).
8 Start/Stop Slaves - These structures allow the Master to stop or start cyclic
data transfers with a slave or or group of slaves. For detailed information, see
DFB Acyclic Mailbox Message: Start/Stop Slave (page 124).
9 Set Operate Mode - These structures allow the Master to suspend or restart
all cyclic polling activity on the network. For detailed information, see DFB
Acyclic Mailbox Message: Set Operating Mode (page 116).
10 Get Database - These structures allow the Master to obtain and report
database configuration information about the PROFIBUS Master hardware.
For detailed information, see DFB Acyclic Mailbox Message: Get Database
Information (page 130).
All the DDTs and variables required to use, control, and manage these ten types
of acyclic messages are contained in the MNETDPV1_MAILVAR structures and
sub-structures.