Appendix BUsing Modems
155
Pin No. Setting Setting details
1ON: Writing disabled for user program memory.
OFF: Writing enabled for user program memory.
2ON: The user program is automatically transferred and
executed when power is turned ON.
OFF: The user program is automatically transferred but
not executed when power is turned ON.
3ON: Programming Console messages displayed in
English.
OFF: Programming Console messages displayed in the
language stored in system ROM.
4ON: The peripheral port communications parameters set
in the PC Setup is used.
OFF: Peripheral port communications parameters set
using Programming Console or CX-Programmer
(Peripheral bus only) are used.
5 OFF ON: RS-232C port communications parameters set using
a CX-Programmer (Peripheral bus only) are used.
OFF: The RS-232C port communications parameters set
in the PC Setup is used.
6ON: User defined pin. Turns OFF the User DIP Switch
Pin Flag.
OFF: User defined pin. Turns ON the User DIP Switch
Pin Flag.
7Always OFF.
8Always OFF.
For online connection via modems, always set pin 5 of the DIP switch to OFF (RS-232C port is not used with de-
fault setting). Set other pins according to your needs.
PC Setup
Set up the RS-232C port on the PC using Host Link Port Setup in the PC Setup using CX-Programmer. Set the
RS-232C port as follows:
Example: Setting the baud rate to 9,600 bps
Host Link port
Mode setting
Baud rate
Data length
Stop bits
Parity
Unit No.
Transmission delay
Host Link
9,600
7
1
Even
0
0
Bits/s
Bits
Bits
10 ms
Set a unit number between 0 and 31. Other items must be set exactly as shown above.
Serial Communications Port Setup for Connection to a SerialCommunications Board/Unit Installed in a CS1-series PC
This section describes how to set up the serial communications ports for the Serial Communications Boards/Units
using the software switch settings at the PC.

Software Switch Settings

In the software switch settings for the Serial Communications Board/Unit registered in the CX-Programmer I/O
table, make the RS-232C settings for the serial communications port to be used for connection.
Make the following settings:
Example: Setting the baud rate to 9,600 bps