Rs-232 communications, 1 connection and networking, 9 example 9: automatic refill – New Era NE-1600 Multi-Phaser Programmable Syringe User Manual

Page 36

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New Era Pump Systems Inc.

WWW.SYRINGEPUMP.COM

Model NE-1600/NE-1800 Multi-Phaser™

Publication #1200-02

31

8/1/14

Phase

Function

10

PS:10

Phase

Function

11

ET:01

Phase

Function

12

PS:10

Phase

Function

13

JP:01

8.4.9

Example 9: Automatic Refill

While a foot switch is held, dispense continuously, starting with a 1.5 mL bolus. When the foot switch is
released, the syringe will refill to the volume that was dispensed.

In the pump’s general setup, set the TTL Trigger to “Foot Switch Hold” mode (TR:FH).

Phase

Function

1

TR:ET

Redirect trigger input to the Event Trap

Phase

Function

2

ET:05

Set Trigger Event Trap to start syringe refill

Phase

Function

Rate

Volume

Direction

3

RATE

1000.0 mL/hr 1.5 mL

Infuse

Begin bolus dispense

Phase

Function

Rate

Volume

Direction

4

RATE

500.0 mL/hr

0.0 mL (OFF) Infuse

Then infuse continuously

Phase

Function

Rate

5

FILL

1000.0 mL/hr Refill syringe when foot switch is released

Phase

Function

6

STOP

Then stop the pump

9. RS-232 Communications

The NE-1600/NE-1800 Syringe Pump can communicate with any computer or device with an
RS-232 communications port. The following assumes that the default Address
Communications Mode is set.

9.1 Connection and Networking

On the rear of the pump are 2 square RJ-11 (“phone jack” style) sockets. Connect the RS-232

cable into the socket labeled “To Computer”. Connect the other end to the serial port on the computer, or other
control device. Turn power off to the pump and the computer before connecting cables.

If the pump is part of a pump network, connect a pump network cable between the socket labeled “To
Network”, on the first pump, and the socket labeled “To Computer” on the next pump in the network. Repeat
for each pump in the network, connecting the “To Network” socket of one pump to the “To Computer” socket
on the next pump in the network. Up to 100 pumps can be networked together with a computer. See section
10, “Logic Interface: TTL Input and Output”, for a diagram of the rear of the pump. When communicating
with a pump in a multi-pump network, each preceding pump in the network must be powered on.

Each pump in the network needs a unique network address to identify the pump to the computer. Network
addresses are from 00 to 99. If the network consists of only 1 pump, set the pump’s address to 0. Also, each
pump needs to be set to the same baud rate as the computer. Use the ‘Setup’ function on the keypad to set the
network address and the baud rate. See section 5.12, ‘Setup’ . The “*ADR” command can also be used to set
the network address.

The supported baud rates are 300, 1200, 2400, 9600, and 19200. The trade-off on baud rates is
communications speed versus noise immunity. For most environments, 19200 would be acceptable. But in
environments that are electrically noisy and/or over long cables, the communications signal may degrade or be

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