Omron SYSMAC CS Series Operation Manual page 104

CS1/CJ1W-PRM21 PROFIBUS Master DTM
Online Operations
Tab
PROFIBUS
Communication Group
!Caution When initiating a mode change, it may interfere with attempts from the PLC
Global-Control Messages
The Online Operations tab is the second main tab in the DTM Diagnostics
User Interface. It contains the necessary controls to
• Switch the Master Unit to PROFIBUS Operational modes
• Select one or more groups, and Global-Control Commands and transmit
Global-Control message over the PROFIBUS network.
The Online Operations tab is shown below.
These buttons can be used to force the Unit to change its operating mode.
The four operational modes are
• OFFLINE mode.
• STOP mode.
• CLEAR mode.
• OPERATE mode.
The mode changes are implemented through FINS messages to the Unit's
software switches in the CIO Memory Area (see section 4-2-1 Software
Switches 1 (Word n)).
Program to write to the same software switches. Care should be taken to
avoid these situations.
Global-Control messages (See section 6-6-3 Transmitting Global-Control
Commands) can be initiated by the user from the Online Operations tab. The
user can select the Global-Control commands.
• Freeze.
• Unfreeze.
• Sync.
• UnSync.
Section 3-3
83