Operator’s Manual 3–1
3 - SERIAL PORT COMMUNICATIONS
Receiving Serial Data (Customer Port Output)
When the Modbus Mode parameter is set to 0, the analyzer is configured to
transfer a string of data from the analyzer to a serial device via the customer
port output. The receiving device is typically a computer terminal running
HyperTerminal, which is a program included with Microsoft
®
Windows
®
95, 98
and XP that enables serial communication and the viewing, capturing and
storage of serial port data and messages.
TolaunchHyperTerminal
1. On your Windows desktop, click Start followed by Run (usually
located in the lower right window of the Start Menu).
2. Type Hypertrm.exe and hit Return to launch HyperTerminal.
3. Once HyperTerminal is activated, the Connection Description
window appears, as shown in Figure 3–1 on page 3–2. Type in a
Filename (where the terminal session settings will be stored for
future recall) and click on any icon. Click OK.
4. The Connect To window appears prompting for a connection, as
shown in Figure 3–2 on page 3–2. Click the Menu Arrow under
Connect Using to view the choices.
5. Click on the appropriate port to which your analyzer is connected
(COM1, COM2, COM3, etc.). Click OK.
6. Once the port is chosen, the COM Properties window appears.
Make sure the COM properties for the port selected reflect those
shown in Figure 3–3 on page 3–3 (19200 baud or as set in Mode 2,
8 data bits, 1 stop bit, no parity, and no flow control).
7. Click OK to establish the connection.
Mode 1 data string
Once connected, the data will start streaming through the HyperTerminal
Window as shown in Figure 3–4 on page 3–3. The data string is tab delimited
(each row starting with a tab) forming 23 columns in the following order:
• Date: Current date (in MM:DD:YY)
• Time: Current time (in HH:MM:SS)
For quicker access to HyperTerminal, save a HyperTerminal
shortcut to the desktop.
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