- 189 -
8.
Can I use the SetCommState ( ) API to changes the Baud Rate/data
format settings of a virtual COM port?
Yes. In a Win32 environment, the CreateFile( ) API should be called to open the COM
Port(s) and then the SetCommState( ) API can be used to configure the settings.
Third-party tools may provide an OpenCom( ) function for accessing a COM port. In
actuality, the CreateFile( ) and SetCommState( ) APIs must be used to implement these
kinds of functions.
9.
How many PCs can be connected to a single PDS device?
This depends on how many serial ports are available on the PDS series module and
how many serial ports which can be connected to each PC of PDS.
The PDS series module has 32 sockets in total includes some reserved listening
sockets. The PDS series module provides a single command port for configuring the data
(serial) ports. Thus, no matter how many data (serial) ports on the PDS are used, one more
socket connection is needed for the command port in order to configure them.
IO Port
Data Ports
Listening
Sockets
Available
Sockets
Max. PCs
when using all
data ports
Max. PCs
when using 1
data port
DS-712
0
1
5
32 - 5 = 27
30/2 =15
30/2 = 15
DS-715
0
1
5
32 - 5 = 27
30/2 = 15
30/2 = 15
PDS-720
PDS-720D
0
2
6
32 - 6 = 26
29/3 = 9
29/2 = 14
PDS-721
PDS-721D
1
2
7
32 - 7 = 25
29/3 = 9
29/2 = 14
PDS-732
PDS-732D
1
3
8
32 - 8 = 24
28/4 = 7
28/2 = 14
PDS-734
PDS-734D
1
3
8
32 - 8 = 24
28/4 = 7
28/2 = 14
PDS-742
PDS-742D
0
4
8
32 - 8 = 24
27/5 = 5
27/2 = 13
PDS-743
PDS-743D
1
4
9
32 - 9 = 23
27/5 = 5
27/2 = 13
PDS-752
PDS-752D
0
5
9
32 - 9 = 23
26/6 = 4
26/2 = 13
PDS-755
PDS-755D
0
5
9
32 - 9 = 23
26/6 = 4
26/2 = 13
Summary of Contents for PDS-700 Series
Page 56: ...PDS Series User Manual V1 4 Oct 2009 56 PDSM 782 D PPDSM 782 D Pin Assignments...
Page 58: ...PDS Series User Manual V1 4 Oct 2009 58 PDS 700 IP67...
Page 59: ...PDS Series User Manual V1 4 Oct 2009 59...
Page 60: ...PDS Series User Manual V1 4 Oct 2009 60...
Page 61: ...PDS Series User Manual V1 4 Oct 2009 61 DS 712 PPDS 712 MTCP Pin Assignments E1 10 100 Base TX...
Page 62: ...PDS Series User Manual V1 4 Oct 2009 62 DS 715 PPDS 715 MTCP Pin Assignments E1 10 100 Base TX...
Page 64: ...PDS Series User Manual V1 4 Oct 2009 64 Digital Output...
Page 66: ...PDS Series User Manual V1 4 Oct 2009 66 PDSM 700 PPDSM 700 MTCP...
Page 67: ...PDS Series User Manual V1 4 Oct 2009 67 PPDS 700 IP67...
Page 68: ...PDS Series User Manual V1 4 Oct 2009 68...
Page 69: ...PDS Series User Manual V1 4 Oct 2009 69 Din Rail Mounting Stack Mounting...
Page 91: ...PDS Series User Manual V1 4 Oct 2009 91...
Page 147: ...147 Init Mode Short INIT and GND PDSM 700 D PPDSM 700 D MTCP Run Mode Open INIT...
Page 152: ...PDS Series User Manual V1 4 Oct 2009 152 Example...