Appendix B
Using Modems
154
DIP Switch on Host Link Unit
Open the cover on the front panel of the Host Link Unit and set the DIP switch as follows:
Pin No.
Setting
Setting details
1
OFF
The communications conditions for the communications port
are as specified in the CPU Bus Unit System Setup. (The
default setting is not used.)
2
ON
CTS signal at communications port 1 is always set to ON (0 V
fixed).
3
ON
CTS signal at communications port 2 is always set to ON (0 V
fixed).
4
OFF
Reserved for system use (must be always set to OFF)
5
OFF
Normal operation (when this pin is set to ON, a loopback test
will be conducted)
6
–
Test port setting
Set pin 6 of the DIP switch according to your needs. Other pins must be set exactly as shown above. Pins 2 and 3
have only to be set for the ports used for modem connection.
CPU Bus Unit System Setup in the PC
This section describes how to set up the Host Link ports using the CPU Bus Unit System Setup under the Commu-
nications and CPU Bus Unit System Setup from a Programming Device for the PC.
Note In the CPU Bus Unit System Setup screen for the Host Link Unit, “+0” to “+9” are used to set up communica-
tions port 1 and “+10” to “+19” are used to set up communications port 2.
Set each value on the screen as shown below.
[CPU SIOU Unit System Setup]
Unit # 00 LK
BYTE
b7
b0
HEX
BYTE
b7
b0
HEX
+ 0
[1001
0000]
90
+ 10
[1001
0000]
90
+ 1
[0000
0000]
00
+ 11
[0000
0000]
00
+ 2
[0001
0011]
13
+ 12
[0001
0011]
13
+ 3
[0001
0001]
11
+ 13
[0001
0001]
11
+ 4
[0000
0000]
00
+ 14
[0000
0000]
00
+ 5
[0000
0000]
00
+ 15
[0000
0000]
00
+ 6
[0000
0000]
00
+ 16
[0000
0000]
00
+ 7
[0000
0000]
00
+ 17
[0000
0000]
00
+ 8
[0000
0000]
00
+ 18
[0000
0000]
00
+ 9
[0000
0000]
00
+ 19
[0000
0000]
00
You need to set only the port to be used for online connection via modems.
CS1-series PC Setup for Built-in Host Link Port
This section describes how to set the DIP switch on the PC and set up the Host Link port (RS-232C port) using the
PC Setup.
DIP Switch
Turn the CPU Unit OFF and set the DIP switch on the front panel as follows: