Problems with PC operation
Maintenance/Troubleshooting
1-44
Is the Ethernet cable a straight type or a cross type?
Cause
GP and a PC can be connected without a hub when using a straight cable. Cross cables
might not be usable when employing the one-to-one connection, depending on personal
computers or network cards.
Solution
Provide a hub between the GP and a PC when using a straight cable. Make sure that the
GP and PC are connected with a straight cable via hub not with a cross cable in order to
avoid incompatibility between the GP and PC.
• Distinguishing between a straight cable and cross cable
Compare the connectors at the both ends of the cable. When the color-coded signal
cables are arranged in the same orders from the left in the connectors, it is a straight
cable. When they are arranged differently, it is a cross cable. The color-coded of the
signal cables depend on the cable is used. The following pictures are examples.
Is your GP set to offline mode?
Cause
The Pass-Through Configuration Tool is available only when GP is set to online mode.
Solution
If GP is set to offline mode, exit from offline mode to display the RUN screen.
Straight cable
Cross cable
The color-coded signal cables are arranged in
the same orders from the left of them,
“White-Yellow-White-Blue-White-Green-White”,
“White-Yellow-White-Blue-White-Green-White”
The color-coded signal cables are not arranged
in the same orders from left of them,
“Black-Orange-Blue-White-Green-Black”,
“Black-Green-White-Blue-Orange-Black”