Z-Arm Connection; Input And Output Ports - Gilson GX-271 User Manual

Unit ID
The unit ID identifies the liquid handler to software packages that can issue GSIOC commands to the liquid
handler.
At the factory, the unit ID on the liquid handler is set to 20. There is no need to change this number, unless it
has been assigned to another Gilson instrument that is also connected along the GSIOC.
To change the unit ID:
1. Gently insert a small flat-blade screwdriver into the unit ID selector on the rear panel and turn it. Refer to
Rear Panel Diagram on page 42 for the location of the unit ID selector
2. Align the white dot with one of the indicated numbers. The unit ID is 20 plus the selected number.
For information about setting the unit ID for liquid handler accessories that utilize GSIOC
NOTE
communications, refer to its respective appendix.

Z-Arm Connection

Connect the cable from the Z-arm to the Z-ARM port on the rear panel of the liquid handler. Refer to
Rear Panel Diagram on page 42 for the location of this port.

Input and Output Ports

You can use the transistor-transistor logic (TTL) input and output contacts found on the rear panel of the
instrument to control peripheral devices. Refer to the
the input and output ports.
Contact Inputs
The input terminal block of the instrument has six
contacts. All of the inputs are paired, and each pair
includes a GROUND reference (
The contact input pairs are labeled A and B. There is
also a safety contact input.
A contact is connected if it has a short across the
input or is held low by a TTL output or other device.
Never connect voltages higher
than 5V DC to an input. When
NOTICE
using TTL signals, be sure to
match GROUND connections.
Rear Panel Diagram
).
on page 42 for the location of
INPUT
A B SAFETY
1 2 3 4 5 6
Figure 28: Input Contacts Digram
GX-271 Liquid Handler
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User's Guide