Operating The Network; User Access To The Network - Omron SYSMAC CS Series Operation Manual

Operating the Network

6-6

Operating the Network

6-6-1

User Access to the Network

Access to the Unit
1,2,3...
!Caution Controlling the CS1/CJ1W-PRM21 PROFIBUS Master Unit from the CS1/
182
There are several ways through which a user can have access to and control
over the PROFIBUS network.
• Through a PLC user program
A PLC user program can set the operational mode of the Unit, send Glo-
bal-Control commands, read Master and slave status / diagnostics infor-
mation, and access the Unit's Error Log. Furthermore, the I/O data
transferred between the PROFIBUS network and the PLC memory, and
can be used by the user program.
• Through CX-Profibus
The CS1/CJ1W-PRM21 Master DTM Diagnosis User Interface provides
the user with buttons to set the operational mode of the Unit, send Global-
Control commands, read Master and slave status information, and access
the Unit's Error Log.
• Through any other CX-Server based program, capable of accessing PLC
memory areas and communicating through FINS messages, e.g. CX-Pro-
grammer, CX-Supervisor, etc.
This section will explore both means to control the CS1/CJ1W-PRM21
PROFIBUS Master Unit.
The CS1/CJ1W-PRM21 Master DTM Diagnosis User Interface provides the
means to control the Master Unit directly from CX-Profibus, running on a PC.
For access to the Unit's controls, an online connection with the Unit has to be
established first. To achieve this perform the following sequence.
1. To go on line, select the DTM in the Network view, and perform one of the
following actions.
• Select the Device - Go Online option from the main menu, or the DTM
context menu, or
• Select the button from the Tool Bar.
2. A communication channel will be opened through CX-Server. The name of
the DTM in the Network view, will turn to Italic font, to indicate that the Unit
is on-line.
3. From the context menu, select the Diagnosis option. The DTM's Diagnos-
tics User Interface will be displayed.
4. Select the Online Operations tab, for the Units controls.
CJ1W-PRM21 Master DTM Diagnosis User Interface, may interfere with a
PLC user program running at the same time. This can result in unexpected
behaviour. It is recommended to change the PLC CPU mode to PROGRAM
mode to avoid this interference, during the use of the CS1/CJ1W-PRM21
Master DTM Diagnosis User interface.
Section 6-6