New Era NE-4000 Multi-Phaser Programmable Double Syringe - Manual (Page 35)

New Era Pump Systems Inc.
www.SyringePump.com
Model NE-4000 Multi-Phaser™
Publication #1200-01 30 09/05/14
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-4000 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 disrupted, causing
communications errors. In these situations, a lower baud rate may improve the reliability of the communications.