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9
Digital communication interface
If supplied with the option, the 6055 bath is capable of communicating with
and being controlled by other equipment through the digital interface. Two
types of digital interface are available — the RS-232 serial interface and the
IEEE-488 GPIB interface.
9.1
Serial communications
The bath may be installed with an RS-232 serial interface that allows serial dig-
ital communications over fairly long distances. With the serial interface the user
may access any of the functions, parameters and settings discussed in Section7
with the exception of the BAUD rate setting. The serial interface operates with
8 data bits, 1 stop bit, and no parity. The use of a shielded communications ca-
ble is recommended.
9.1.1
Wiring
The serial communications cable attaches to the bath through the DB-9 connec-
tor on the back panel. Figure 8 shows the pin-out of this connector and sug-
gested cable wiring. To
eliminate noise, the serial ca-
ble should be shielded with
low resistance between the
connector (DB-9) and the
shield.
9.1.2
Setup
Before operation, the serial
interface of the bath must first
be set up by programming the
BAUD rate and other configu-
ration parameters. These pa-
rameters are programmed
within the serial interface
menu. The serial interface pa-
rameters menu is outlined in
Figure 6.
To enter the serial parameter
programming mode first press
"EXIT" while pressing "SET"
and release to enter the sec-
ondary menu. Press "SET" re-
peatedly until the display
reads "ProbE". This is the
menu selection. Press "UP"
9 Digital communication interface
Figure 8 Serial Cable Wiring Diagram
Serial communications
45
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