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Basic Operating Procedure Section 1-9
Creating I/O Tables for
Serial Communications
Units
I/O tables must be created for Serial Communications Units. Create the I/O
table using a Programming Device, such as a Programming Console or CX-
Programmer.
Setting the Setup Area in
the DM Area
Set the serial communications mode and the communications specifications
for the Board or Unit. Use a Programming Device, such as a Programming
Console or CX-Programmer, or the CX-Protocol to set the Setup Area.
Host Link Communications
The following table shows the default (standard) settings for Host Link com-
munications.
m = D30000 + 100
× unit number
1:1 Host Link Mode
Example: When using a Serial Communications Board/Unit with Unit Ver. 1.2
or later, host computer programs that were created using the earlier models
C500-LK101, C500-LK201, C500-LK103, or C500-LK203 can be executed
using 1:1 Host Link protocol.
m = D30000 + 100
× unit number
Protocol Macros
The following table shows the default (standard) settings for protocol macros.
m = D30000 + 100 × unit number
Board
(CS Series only)
Unit
(CS/CJ Series)
Bit Setting Meaning
Port 1 Port 2 Port 1 Port 2
D32000 D32010 m m+10 15 0 Start bit: 1 bit
Data length: 7 bits
Parity: Even
Stop bits: 2 bits
Baud rate: 9,600 bps
08 to 11 5 Host Link mode
D32001 D32011 m+1 m+11 00 to 03 0 The baud rate setting is disabled when the
default settings are used.
D32002 D32012 m+2 m+12 15 0 Send delay: 0 ms
D32003 D32013 m+3 m+13 15 0 CTS control: No
00 to 07 00 Host Link unit number: 0
Board
(CS Series only)
Unit
(CS/CJ Series)
Bit Setting Meaning
Port 1 Port 2 Port 1 Port 2
D32003 D32013 m+3 m+13 14 1 1:N/1:1 Host Link setting: 1:1 Host Link
D32003 D32013 m+3 m+13 10-08 3 hex Host Link compatible device mode: C mode
(C500/120)
Board
(CS Series only)
Unit
(CS/CJ Series)
Bit Setting Meaning
Port 1 Port 2 Port 1 Port 2
D32000 D32010 m m + 10 15 0 Start bit: 1 bit
Data length: 7 bits
Parity: Even
Stop bits: 2 bits
Baud rate: 9,600 bps
11 to 08 6 Protocol Macro mode
D32001 D32011 m + 1 m + 11 03 to 00 0 9,600 bps when the default settings are
used.
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