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Connecting to a CVM1/CV Series Host Link Unit
CVM1/CV series Rack-mounted Type: CV500-LK201
A CVM1/CV series host link unit (CV500-LK201) has two connectors (communications ports
1 and 2). To use the RS-422A type host link method, set communications port 2 to RS-422A.
Communications port 2 is a 9-pin connector which allows selection of the RS-232C or
RS-422A method. When this port is used with the RS-422A method, the I/O port selector
switch on the front of the unit must be set to RS-422A (the lower position).
CPU Bus Unit Settings
When connecting to a CVM1/CV series host link unit, set the following communications
conditions for the CPU Bus Unit settings.
Item Setting at Host
Communications speed Set the same baud rate as set at the NS-series PT (See note 1.)
Transfer code ASCII, 7 data bits, 2 stop bits
Parity Even
Note 1: 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.
Set the CPU Bus Unit settings directly from a Programming Device (e.g., CX-Programmer).
For details on the CPU Bus Unit settings, refer to the SYSMAC CVM1/CV-series Host Link
Unit Operation Manual (W205-E1-@).
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