D-Series Syringe Pumps - Isco

D Series Syringe Pumps
Section 6 Serial Interface
message field when delimited by semicolons, but the D Series
controller is limited to single commands. It will respond with a
PROBLEM=INVALID COMMAND message.
6.4 Cabling for Serial
Control
Cable Connections
The cabling scheme for your system will depend on the number of
instruments you need to control. The computer is always connected
from the serial port to the serial port(s) of the D Series
controller(s) it is controlling. Each controller is connected to its
pumps in the normal fashion, i.e. the pump control cables are
attached to the pump A, B, and C connectors on the rear panel of
the pump controller. The cable you select to connect your network
will depend on the type of serial port your computer has and the
number of controllers you wish to connect.
One or two controllers: – To connect one controller, use cable
480-7996-00. If only two controller are being connected in the
network, then a single cable, 68-1020-198, is all that is required.
It is connected between the 9-pin serial output connector of the
computer and the RS-232-C connector on the rear of up to two
controllers, as shown in Figure 6-2.
Note
In order for the network to operate properly, all instruments
connected to the network must be turned on even if they are
not being used.
Three or more controllers: – If additional instruments are to
be connected in series, a special daisy chain cable, P/N
68-1020-180, will be required. The 1020-180 cable is attached to
the last connector on the 1020-198 cable shown, in Figure 6-2,
and then plugged into the RS-232-C connectors on the back of the
additional controllers.
Figure 6-2 Serial network connection example
6-11