Fluke 5502A, Руководство оператора

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Remote Operation
Set up the IEEE-488 Port for Remote Control
5
5-5
RS-232 The SERIAL 1 FROM HOST serial port connects the PC and Calibrator, while
the SERIAL 2 TO UUT serial port is used as a pass-through port for commands from the
PC to UUT with the Calibrator. You can write your own computer programs with the
command set, or use the PC as a terminal and enter individual commands, or you can
purchase optional Fluke Calibration MET/CAL Plus software for RS-232 system
operations. Typical RS-232 remote configurations are shown in Figure 5-2.
After you configure the IEEE-488 or RS-232 port for remote operation, you are prepared
to start command set use. The operation of the command set is given in “Use Commands”
in this chapter. A summary of remote commands is in Chapter 6, “Remote Commands.”
Set up the IEEE-488 Port for Remote Control
The Calibrator is fully programmable for to use on the IEEE Standard 488.1
interface bus. The IEEE-488 interface is also in compliance with supplemental
standard IEEE-488.2, which gives more IEEE-488 features. Devices connected
to the IEEE-488 bus are designated as talkers, listeners, talker/listeners, or
controllers. The Calibrator operates as a talker/listener when it is remotely
controlled by an instrument.
A PC with an IEEE-488 interface controls the Calibrator. Compatible software
for IEEE-488 operation can be purchased from Fluke Calibration with
MET/CAL Plus.
When you use the IEEE-488 remote control interface, there are two restrictions:
1. Number of Devices A maximum of 15 devices can be connected in one IEEE-488
bus system. For example, one instrument controller, one Calibrator, and thirteen
UUTs.
2. Cable Length The total length of IEEE-488 cables used in one IEEE-488 system is
2 meters multiplied by the number of devices in the system, or 20 meters. Use that
which is less. For example, if 8 devices are connected, the maximum cable length is
2 x 8 = 16 meters. If 15 devices are connected, the maximum cable length is 20
meters.