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Troubleshooting — 17

Notes

Rev 3-97

* School

software it will not usually be fixed unless it not possible to circumvent, however
any defect found will be fixed in later versions. No additional features will be
added to release version software. With development software there may be
unidentified bugs, feature additions or changes, or there may be little or no
documentation on the software. Development software is usually only made
available for review or demonstration purposes, and rarely so even then. We do
not want to put questionable software in your hands.

A software upgrade is defined as an upgrade from one version level of software
to a higher version level. For example, going from IQ For Windows 1.0 to version
1.1 would be an upgrade. Charges will apply for software upgrades, however
upgrades are less expensive than new purchases. Contact the Crown Sales
department for specific information about upgrade charges.

REVIEW QUESTIONS

1. What is likely to be the problem if you start the software but cannot run a Roll
Call manually or automatically?

2. What is the most significant factor that determines maximum Crown Bus
length on twisted pair wire?

3. True or False: The Crown Bus is polarity sensitive.

4. List as many IQ components as possible that are static sensitive.

Содержание SMX 1

Страница 1: ...ered with IQ List the configuration parameters that must match between software and interface hardware State the maximum operating length RS232 and RS422 State the maximum loop capacitance for normal...

Страница 2: ...igure 2 6 Voltage Measurement Open Figure 3 7 Voltage Measurement Reverse Polarity Figure 4 8 Current Measurement Figure 5 9 Does The Software Run PC Requirements Environment Windows DOS Corrupt or In...

Страница 3: ...e right general area for the exact problem Specifically is the process of defining the exact nature of the problem Example When taking a Roll Call all components appear except those in equipment room...

Страница 4: ...ments for the type of software being used IQ components are not likely to fail but it is not impossible Lightening is a respecter of no one The most common type of hardware failure is opto isolator da...

Страница 5: ...ponent address To save time later it is always recommended that you mark components with their loop address and annotate system drawings to accurately reflect those addresses TOOLS AVAILABLE There are...

Страница 6: ...for some reason such as power loss the On Line Search feature will automatically reestablish communication with that component when power is restored It will also restore communication to a whole loo...

Страница 7: ...ect It is a feature you would use if you were not able to establish loop communication initially you missed the alert on the screen or you want to verify the break To use Search you need to select the...

Страница 8: ...e versed If you have no voltage drop at all the problem may be an open in one of the wires between the output of the upstream device and the point of measurement as shown in Figure 3 It could alsobeas...

Страница 9: ...oop Figure 5 shows a test rig setup for wave form mea surement Note that if an ungrounded scope is used it makes no difference whether the resistor is in the positive or negative leg but if a grounded...

Страница 10: ...e prob lem may result in loss of high current or low current values When the problem isextremelyhighRFItheproblemismorelikelytobealossoflowcurrentvalues OUT IN SMX 1 OUT IN SMX 2 OUT IN SMX 3 OUT IN S...

Страница 11: ...you if you have taken the time to check available documentation It is also very helpful if you have serial numbers software revision numbers or other relavent information handy when you call If a har...

Страница 12: ...1C Are any files corrupted Yes Re install the program No If the problem cannot be resolved contact Crown Figure 8 Troubleshooting Flow Chart Does the software run PC Requirements Operating System Corr...

Страница 13: ...erface it is sometimes necessary to remove Pin 4 from the male connector on the standard RS232 cable Proceed to question 3C No Use the correct cable Question 3C Is the RS232 cable connected correctly...

Страница 14: ...ay not have any two components of the same type at the same address on the same loop and that addresses of 0 and 251 255 are not valid Question 4C Does the software have valid OIF and DLL files for th...

Страница 15: ...es the computer have a 16550 UART for the com port Yes Proceed to question 5B No Install a com port board with the 16550 UART chip This UART supports higher speeds and includes additional memory buffe...

Страница 16: ...lation or if the product has been repaired three or more times in the warranty period the most recent being at the Crown Factory Advanced replacements are only available through firms who have establi...

Страница 17: ...oftware in your hands A software upgrade is defined as an upgrade from one version level of software to a higher version level For example going from IQ For Windows 1 0 to version 1 1 would be an upgr...

Страница 18: ...ion problem is most likely between the computer and interface or on the Crown Bus 7 How does Break Detect work 8 List as many conditions as you can think of that would constitute a break in a Crown Bu...

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