ANY-maze Help > The ANY-maze reference > The I/O page > Making I/O connections > Connecting syringe pumps

Connecting syringe pumps

Details

There are two ways to connect to syringe pumps in ANY-maze. The first is to connect directly to the pump using a USB cable or a serial port; in this case ANY-maze sends commands to the pump which then executes them. This is the most flexible method and is supported by many pumps on the market. This type of connection is described in detail here.

The second method is to use a 'remote control' input on the pump; in this case ANY-maze will be able to switch the pump on and off, but it won't be able to alter its direction or speed. This type of connection is less common but is the only way to connect to the popular Razel pumps.

Most pumps which include a 'remote control' input, use TTL signals to control the pump. This type of input can be connected to an ANY-maze Digital interface TTL output port. Specifically the signal line should connect to pin 1 and the ground line to pin 2 (odd numbered ports) or to pins 3 and 4 (even numbered ports).

After connecting the pump, you will need to configure the ANY-maze Digital interface so that it knows that the port you've connected to is being used to output a TTL signal - specifically you should set the port to be a TTL output. You should then test that the pump is working correctly using the I/O page, where you'd want to select the relevant ANY-maze Digital interface's Switch output ports.

To actually use a syringe pump that is being controller through a Switch output port, you'll need to add it to the protocol as an on/off output (NOT as a syringe pump). You'll probably also want to add a procedure, as it's the procedure which will actually turn the pump on and off during tests.

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ANY-maze help topic T0909