Getting Started; Overview; Equipment Needed; Terminal Program Settings - Honeywell PPT User Manual

2

GETTING STARTED

2.1

OVERVIEW

The first-time user should approach the PPT in a manner analogous to using a word processor
program; i.e., many features are available but one may begin by using those of interest at the mo-
ment. Section 2.7 of this manual lists command features by functional groups to assist in this selec-
tion. When shipped from the factory, the default settings provide a pressure transducer that will be
usable for many applications. Once the user is familiar with the performance and command struc-
ture, changes may be made and stored using the 'Store Parameters' (SP) command. Once stored, the
new default settings are activated each time the PPT is powered up. This tailors the personality of
the PPT to meet the needs of a particular application.
2.2

EQUIPMENT NEEDED

To prepare the PPT for operation, three items are needed:
• A mating connector with proper wiring connections (see connector part number and wiring
diagram in Section 6—Electrical Connections);
• A DC power supply;
• A source of pressure that is properly matched to the range and type of the PPT.
To operate the PPT in the analog output mode, one additional item is needed:
• Voltage Output - A five digit voltmeter with 0-5 volt range connected between Analog Out and
Signal Common. A computer is not required when operating in this mode.
To operate the PPT in the digital output mode, one additional item is needed:
• A computer, or host processor, having an RS-232 or RS-485 serial port and terminal program
software such as PROCOM™, VERSATERM™, TERMINAL (Windows
HYPERTERMINAL (Windows
The wiring diagram designates which PPT pins must connect to the computer "send", "receive"
and "common" pins for proper communications. Some computers may not have an RS-232 or RS-
485 serial port connection identical to the one shown in Section 6, making it necessary to adapt
the PPT connections to that particular computer.
2.3

TERMINAL PROGRAM SETTINGS

• Enter the following settings in the terminal program:
• Attach a line feed to the carriage return.
• Turn the local echo ON.
When shipped from the factory, the PPT is set to a baud rate of 9600, 1 start bit, 8 data bits with no
parity and one stop bit. If the baud rate has been subsequently changed, and is unknown, it will be
necessary to search all baud rate values to reestablish communication. See the BP command descrip-
tion in Section 5.10 of this manual for possible settings.
95). These programs are normally used to interface to a modem.
®
Baud Rate .... 9600
Start Bits .... 1
Data Bits .... 8
Stop Bits .... 1
Parity .... None
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3.x) or
®