California Instruments 2001RP, User And Programming Manual

Page: 74 / 130

User and Programming Manual - Rev N
8.4.2 Serial Cable Diagram
California Instruments AC power sources require a special RS232C cable to communicate with
a PC. Standard null-modem cables obtained from a computer hardware store most likely will
not work. For this reason, all California Instruments power sources that operate over RS232C
are supplied with a RS232C 9 pin female to 9 pin female cable.
If for some reason this cable cannot be located, the following cable diagram shown in Figure 8-3
should be used when constructing a serial cable.
DB-9 PC DB-9 AC Source
Pin
1
2
3
4
5
6
7
8
9
Pin
1
2
3
4
5
6
7
8
9
Direction
output
input
output
output
-
input
-
-
output
Description
reserved
Receive data(RxD)
Transmit data (TxD)
Data Terminal Ready (DTR)
Signal Ground
Data Set Ready (DSR)
no connect
no connect
reserved
Figure 8-3: RS232C Interface Cable Wiring Diagram
8.5 PGUI32 Setup and Installation
This section covers installation of the PGUI32 from the distribution disk to the user’s PC. Make
sure the PC is capable of running Windows with at least 16 Mbytes of memory and 4 Mbytes of
available hard disk space.
8.5.1 Connecting the AC Source to the PC When Using RS232
Connect the AC source to the PC using an RS232C cable.
The AC source com port settings are set as follows:
Baud rate: 19200 baud for model 2001RP
Data bits: 8
Stop bits 1
Parity bits: none
Handshake: Hardware
The AC source is configured to accept the above setting.
Select the RS232 interface by sliding the interface selection DIP switch on the rear panel to the
RS232 position.
2001RP April 2007 65