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16 TROUBLESHOOTING
16.7 Checking method
157
16
Checking installation environment
Check if the installation environment is within the general specification or clear from noise.
Page 35 General Specifications
Check the board installation
Check the board for an abnormal installation.
Checking cables and wiring
Check if there is an error in the cable or hub, disconnected connectors, or improper wiring.
Checking operation environment
Check if the supported operating system and functions are used.
Item
Corrective action
Is the ambient temperature within the specified range?
Keep the ambient temperature within the specified range by taking action such as removing
heat source.
Is there any noise affecting the system?
Check the wire and cable lengths and grounding condition of each device, and take
measures against noise. (
Page 40 PROCEDURE BEFORE OPERATION)
Item
Corrective action
Is the board installed properly?
• Remove the board and reinstall it.
• Change the installation location of the board.
• Fix the board firmly with screws.
Is the applicable number of boards installed?
Remove the board which exceeds the maximum number of applicable boards.
Item
Corrective action
Is a specifications compliant Ethernet cable used?
Replace the cable with a specifications compliant Ethernet cable. (
Is the station-to-station distance 100m or less?
Change the station-to-station distance to 100m or less.
Does the cabling condition (bend radius) meet the
specification?
Refer to the manual for the Ethernet cable, and correct the bend radius.
Is any Ethernet cable disconnected?
Replace the Ethernet cable.
Is the switching hub normal?
• Check if the 1000BASE-T-compliant switching hub is used. (
• Power OFF and then ON the switching hub.
• Replace the switching hub.
Item
Corrective action
Is the operating system written in "Operating Environment"
used?
(
Page 31 Operating Environment)
Use a personal computer on which the supported operating system is installed.
Is a programming language written in Operating Environment
used for a user program using MELSEC data link library?
(
Page 31 Operating Environment)
• Create a user program using a supported programming language.
• For precautions when using MELSEC data link library, refer to the following manual.
MELSEC Data Link Library Reference Manual
Are the functions written in "The functions cannot be used" in
"Operating Environment" set?
(
Page 31 Operating Environment)
Change the settings for the unsupported functions.
Is the personal computer logging on as a user with administrator
authority
Log on as a user with administrator authority.
Содержание MELSEC Q80BD-J71GF11-T2
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Страница 6: ...4 Disposal Precautions CAUTION When disposing of this product treat it as industrial waste ...
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