26
Setting the Front Switches
•
Unit # (SW3, SW4)
Set these switches to 0.
•
I/O port selection (selector switch)
Set this to RS-422A.
•
Communication condition setting (DIP SW1)
Set this switch to OFF.
Communication is executed in accordance
with the CPU bus unit system settings made
at the PLC. The initial values for the system
settings are as follows.
- Communications speed: 9,600 bps
- Parity: Even
- Xon/Xoff control: Not executed
- Communication method: Full duplex
- Stop bits: 2 stop bits
- Data length: 7 bits
•
Terminator setting (selector switch)
Set this to ON.
Communications port 1
(RS-232C)
Communications port 2
(RS-232C/RS-422A)
I/O port selector switch
Connecting to a CPU Unit
CVM1/CV-series (-EV
@
) CPU Units
•
CV500-CPU01-EV1/CV1000-CPU01-EV1/CV2000-CPU01-EV1
•
CVM1-CPU01-EV2/CVM1-CPU11-EV2/CVM1-CPU21-EV2
PLC Setup
When connecting to a CVM1/CV-series CPU Unit, set the following communications
conditions for the PLC Setup.
Item
Setting at Host
Communications speed
Set the same baud rate as set at the NS-series PT (See note.)
Stop bit
2 stop bits
Parity Even
Data length
ASCII 7 bits
Unit #
00
Note: Set the Host Link communications speed (baud rate) to 9600 bps or 19200 bps with
the Communications Setting menu item in the CX-Designer and the System Menu for
the NS-series PT. For details, refer to
1-4 Settings for Host Link
.
Either set the PLC Setup directly from a Programming Device (e.g. CX-Programmer), or
transmit the PLC Setup made at a Programming Device to the CPU Unit.
For details on the PLC Setup, refer to the
SYSMAC CVM1/CV500/CV1000/ CV2000
Operation Manual: Ladder Diagrams
(W202-E1-
@
).