SyriXus Series Pumps Installation and Operation Guide
Section 8 Serial Interface
8-7
EAR99 Technology Subject to Restrictions Contained on the Cover Page
If several units are being configured, Teledyne ISCO suggests placing
a label on the rear of each instrument listing the ID number and baud
rate. This will help identify the controller in the future and prevent
assigning the same ID number to two controllers or assigning an
incorrect baud rate.
8.6.3 Verify Operation
To verify network operation, open a terminal emulator program on
your computer, such as HyperTerminal™ (©Hilgraeve, Inc. Corp. 1287
N. Telegraph Rd. Monroe, Michigan 48162), and establish connection
with the controller.
NOTE
If you will be using multiple controllers daisy-chained to a single
serial port, you must connect and test each controller one at a time.
1. Press
MENU
>
MORE
(A) >
MORE
(A), and select
DIAGNOSTIC
MENU
(2).
2. Select
SERIAL
TEST
(6).
The
SENT
value displayed will increment indefinitely until you exit the
test by pressing any key. This same value should appear on your com-
puter screen. If it does not, verify that you are using the correct serial
port on the computer, and that the communication cables are properly
connected and in working order.
8.7 User-Written
Software
When designing software to control the SyriXus series pumps, you
must follow the DASNET communications protocol. This protocol
allows a number of instruments to be controlled from a single
RS-232-C serial port. Up to seven SyriXus series controllers may
share a single serial data channel, with each controller only accepting
commands that are meant for it. Refer to Section 8.4.3 "Three or More
Controllers" for information about attaching multiple controllers.
Each pump controller can then control up to four pumps each. Figure
8-1 shows a simple system where the personal computer or laptop is
connected to the serial port on the rear panel of the pump controller
(shown sitting on top of the pump module). The pump control cable is
attached to the pump A connector on the rear panel of the controller.
8.7.1 DASNET
DASNET converts your direct serial commands into a form recog-
nizable to Teledyne ISCO instruments. Using a computer language
such as C or BASIC, serial commands can be entered, converted, and
then sent to your instrument.
•
"Example of BASIC Program to Demonstrate Conversion of
Pump Commands to DASNET Frames"
is an example BASIC
language program which performs the required portion of the
DASNET serial protocol.
•
"Example of C Program Demonstrating Conversion of Pump
Commands to DASNET Frames"
is an example of a C language
program which does the same.
• For a console C++ example, refer to
Demonstrating Conversion of Pump Commands to DASNET
Frames"
.
