Using Flukeview Forms - Fluke 8845A Manual

8845A/8846A
Programmers Manual
External Triggering
A measurement can be externally triggered in three ways:
To trigger a measurement over the RS-232 or IEEE-488 computer interface, send the
Meter a *TRG command over the computer interface. The GET command is only valid
for the IEEE-488 interface.
When set for external trigger, the Meter will trigger measurements when a negative-going
signal is applied to the rear-panel trigger jack.
The Fluke 45 provides a method of triggering through its RS-232 port. The
8845A and 8846A do not provide this method of triggering.
Type
1
2
3
4
5
[1] Although the Fluke 45 disabled the rear-panel trigger for these trigger types, the 8845A/46A leaves the rear-panel
trigger enabled.

Using FlukeView Forms

You can use FlukeView Forms to download and store readings from the Meter to a PC
running MicroSoft's Windows operating system. FlukeView Forms Basic Documenting
Software must first be installed on the PC. Refer to the FlukeView Forms Installation
Guide to install FlukeView Forms on your Windows PC.
The Meter's RS-232 port must be enabled and properly configured before
FlukeView forms will communicate with the Meter. In addition, the
Fluke 45 command language must be selected in the Meter.
To connect and configure the Meter to the PC with the installed FlukeView Forms Basic
Documenting Software:
1. Connect a null-modem cable between the RS-232 port of the Meter and the PC's RS-
2. Open FlukeView Forms Documenting Software.
3. The current COM serial port setting is displayed at the bottom right of the FlukeView
4. Turn the Meter on.
5. Select the Fluke 45 Command language by following the instructions in the Selecting
76
•
External trigger.
•
GET command (IEEE-488 Interface only)
•
*TRG command
Trigger
Internal
External
External
External
External
232 port.
Forms Basic window. Double-click on it to change the COM port setting to the
virtual COM port used by the null-modem cable.
the Program Language section of Chapter 3 of the Users Manual.
Note
Table 29. Trigger Types
Rear Trigger
-
[1]
Enabled
[1]
Enabled
Enabled
Enabled
Note
Settling Delay
-
Off
On
Off
On