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PART 3: CX-Server Runtime
OMRON
CHAPTER 3 – Communications
Revision 2.0
CX-Server Runtime_Page 19
For CS/CJ/CP-series PLCs, if Toolbus is being used as the direct connection, multiple destinations are
permitted.
To establish a serial connection to several PLCs, Link Adapters are required that convert from RS232 to RS422.
Link Adapters would be connected in the serial line between the computer and the PLC or between the remote
Modem and the PLC. Multiple connections are permitted from an RS422 port.
If problems are experienced when making a serial connection, check the serial port on the computer is enabled
and that a mouse driver is not loaded or connected to the same port.
For PLCs with direct serial connections on the CPU, default communications settings can also be set by
changing the DIP switches on the front of the CPU. The default protocol settings are 9,600 baud, 7 data bits,
even parity and 2 stop bits. Older PLCs have a default baud rate of 2,400. For PLCs not supporting this feature,
settings are configured via the PLC Setup component. Refer to the
PLC Tools User Manual
Chapter 4 - PLC
Setup Component
for details of the PLC Setup component.
Note:
Communications is possible for the CJ2M-CPU3
@
by using a CP1W-CIF01 RS-232C
Option Board or a CP1W-CIF12 RS-422A/485 Option Board.
SYSMAC WAY
SYSMAC WAY provides a simple means of connecting a computer to a PLC for monitoring and diagnostic
purposes. It has a slower transmission path than SYSMAC LINK, SYSMAC NET, Controller Link or Ethernet.
Communications are achieved by either:
♦
Employing the RS232 serial communications interface for communicating with individual PLCs.
♦
Employing the RS422 interface for communicating with multiple PLCs.
The following connections are required:
♦
RS232 connection via a standard serial port on the computer (COM1 etc.)
or
♦
RS422 connection to a 422 serial board.
These connections can also be made via a Modem. Refer to standard Microsoft Windows documentation for
details on Modem configuration and setup.
The
Driver
tab of the Network Settings dialog allows the configuration information to be entered; this
information ensures that data is transmitted correctly over the network.
Use the following procedure to apply Network Settings.
1, 2, 3…
1. Click on the associated
Settings
pushbutton in the Change PLC dialog.
Содержание CX-PROGRAMMER V9
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