Omron NT30 Operation Manual page 43

Connection to a PC by Host Link via RS-232C
Connecting to a CPU Unit
I/O port
selector
switch
RS-232C
RS-422A
S C-series CjjH, CVM1/CV-series (-EVj)
Set the operating conditions with the PC Setup functions when a CjjH,
CVM1/CV-series CPU Unit is connected to the NT30/30C. The PC Setup can be
made directly from the Programming Device (CX-Programmer) or the PC Setup
information created with a Programming Device can be transferred to the CPU
Unit.
The following describes the switch settings so as to enable the PC Setup. For
details of the PC Setup, refer to the SYSMAC CjjH Programming Manual
(W176) and the SYSMAC CV500/CV1000/CV2000 Operation Manual: Ladder
Diagrams (W202)
(1) C-series CjjH:
No switch settings are required when connecting to a C-series CjjH CPU
Unit.
(2) CVM1/CV-series:
Only the CVM1/CV-series CPU Units of version 1 (model number suffixes of
"-EV1") or later can be connected to the NT30/30C.
When connecting to a CVM1/CV-series CPU Unit, set the switches as given
below.
Setting the Front Switches
S Host Link communications method (selector switch)
Set this to RS-232C.
S System setting (DIP switch pin 4)
To effect the existing DIP switch settings, set pin 4 to ON.
To effect the existing PC Setup, set pin 4 to OFF.
Note The existing DIP switch settings differ from the existing
PC Setup Settings
Set the following communications settings in the PC Setup.
Item
Baud rate Set to the same baud rate as the NT30/NT30C (See note 1.)
Stop bit 2 stop bits
Parity Even parity
Data length ASCII 7 bits
Unit # 00
C20H/C28H/C40H/C60H
CV500-CPU01-EV1
CV1000-CPU01-EV1
CVM1-CPU01-EVj
CVM1-CPU11-EVj
CVM1-CPU21-EVj
PC Setup as follows.
- DIP switch settings: 2400 bps, 1 stop bit, even parity,
7-bit data length
- PC Setup: 9,600 bps, 2 stop bits, even parity, 7-bit
data length
Possible Settings
Section 2-5
33