Checking Installation Environment; Check The Board Installation; Checking Cables And Wiring; Checking Operation Environment - Mitsubishi Electric MELSEC SW1DNC-CCIEF-B User Manual

Checking installation environment

Check if the installation environment is within the general specification or clear from noise.
Page 35 General Specifications
Item
Is the ambient temperature within the specified range?
Is there any noise affecting the system?

Check the board installation

Check the board for an abnormal installation.
Item
Is the board installed properly?
Is the applicable number of boards installed?

Checking cables and wiring

Check if there is an error in the cable or hub, disconnected connectors, or improper wiring.
Item
Is a specifications compliant Ethernet cable used?
Is the station-to-station distance 100m or less?
Does the cabling condition (bend radius) meet the
specification?
Is any Ethernet cable disconnected?
Is the switching hub normal?

Checking operation environment

Check if the supported operating system and functions are used.
Item
Is the operating system written in "Operating Environment"
used?
(Page 31 Operating Environment)
Is a programming language written in Operating Environment
used for a user program using MELSEC data link library?
(Page 31 Operating Environment)
Are the functions written in "The functions cannot be used" in
"Operating Environment" set?
(Page 31 Operating Environment)
Is the personal computer logging on as a user with administrator
authority
Corrective action
Keep the ambient temperature within the specified range by taking action such as removing
heat source.
Check the wire and cable lengths and grounding condition of each device, and take
measures against noise. (Page 40 PROCEDURE BEFORE OPERATION)
Corrective action
• Remove the board and reinstall it.
• Change the installation location of the board.
• Fix the board firmly with screws.
Remove the board which exceeds the maximum number of applicable boards.
Corrective action
Replace the cable with a specifications compliant Ethernet cable. (Page 30 Cables)
Change the station-to-station distance to 100m or less.
Refer to the manual for the Ethernet cable, and correct the bend radius.
Replace the Ethernet cable.
• Check if the 1000BASE-T-compliant switching hub is used. (Page 30 Hubs)
• Power OFF and then ON the switching hub.
• Replace the switching hub.
Corrective action
Use a personal computer on which the supported operating system is installed.
• 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
Change the settings for the unsupported functions.
Log on as a user with administrator authority.
16 TROUBLESHOOTING
157
16.7 Checking method
16