Fluke 9150 9 Digital Communication Interface

9 Digital Communication Interface

The furnace is capable of communicatingwithandbeingcontrolledbyother

equipment through the digital serial interface.

Witha digital interface the instrument may be connected to a computer or other

equipment. This allows the user to set the set-point temperature, monitor the

temperature, and access anyof the other controller functions, all using remote

communicationsequipment. Communications commands are summarized in

Table2 on page 40.

9.1 Serial Communications

The calibrator is installed with an RS-232 serial interface that allowsserial dig-

italcommunications over fairly long distances. With the serial interface the user

may access anyof the functions, parameters and settings discussed in Section 8

with the exception of the BAUDrate setting.

9.1.1 Wiring

The serialcommunications ca-

ble attaches to the calibrator

through theDB-9 connector at

the back of the instrument. Fig-

ure 5 showsthe pin-out of this

connector and suggestedcable

wiring.The serial cable should

be shielded.If the unit is used

in a heavyindustrial setting,

the serial cable must be limited

to ONE meter.

9.1.2 Setup

Before operation the serial in-

terfacemust first be set up by

programming the BAUDrate

and other configurationparam-

eters. These parameters are

programmed within the serial

interface menu. The serial in-

terfaceparameters menu is out-

linedin Figure 4 on page 22.

Toenter the serial parameter

programming mode firstpress

“EXIT” while pressing “SET”

and release to enter the second-

37

9 Digital Communication Interface

Serial Communications

Figure5 Serial Cable Wiring Diagram

Contents

Main Page Table of Contents 9 Digital Communication Interface . . . . . . . . . . . . . . . . 37 10 Test Probe Calibration . . . . . . . . . . . . . . . . . . . . . . 43 Page 1 Before You Start 1.1 Symbols Used 1.2 Safety Information 1.2.1 WARNINGS 1.2.2 CAUTIONS 1.3 Authorized Service Centers Page 2 Introduction 3 Specifications and Environmental Conditions 3.1 Specifications 3.2 Environmental Conditions 3.3 Warranty 4 Safety Guidelines 5 Quick Start 5.1 Unpacking 5.2 Set-Up 5.3 Power 5.4 Setting the Temperature 6 Parts and Controls 6.1 Back Panel 6.2 Front Panel 6.3 Constant Temperature Block Assembly 6.3.1 Constant Temperature Block 6.3.2 Probe Sleeves and Tongs Page 7 General Operation 7.1 Changing Display Units Un= C 7.2 Switching to 230V Operation 8 Controller Operation 8.1 Well Temperature 962.3 C 8.2 Temperature Set-point 8.2.1 Programmable Set-points Page S 8.3 Scan S 8.4 Ramp and Soak Program 8.4.1 Program Points 962.4 S+U S 8.4.3 Program Set-Points SP 1 SP 4 S 0962.7 0970.0 S Pt 4 S 00001 00200 S Sr 4 S 10.0 11.3 S 8.4.4 Program Function Mode Pf=1 Pf=4 S 8.4.5 Program Control P=OFF P=Go S 8.5 Secondary Menu 8.6 Heater Power 962.4 8.7 Set-point Voltage S 11.934U 8.8 Proportional Band S 11.934 U S ProP 30.0 30.5 S 8.9 Controller Configuration 8.10 Operating Parameters S 8.11 Serial Interface Parameters Page 8.12 Calibration Parameters Page 9 Digital Communication Interface 9.1 Serial Communications 9.1.1 Wiring 9.1.2 Setup 9.1.3 Serial Operation 9.2 Interface Commands Table 2 Communications Command Summary 9 Digital Communication Interface Interface Commands Table 3 Communications Commands Summary continued Table 4 Communications Commands Summary continued 10 Test Probe Calibration 10.1 Calibrating a Single Probe 10.2 Furnace Characteristics 10.2.1 Stabilization and Accuracy Page 11 Calibration Procedure 11.1 Calibration Points 11.2 Calibration Procedure Page 12 Maintenance 13 Troubleshooting 13.1 Troubleshooting Problems,Possible Causes, and Solutions 13.2 Comments 13.2.1 EMC Directive 13.2.2 Low Voltage Directive (Safety)