Omron NS7 Series Setup Manual page 182

6-10 Starting Operations
@ Communications Not Established with Host
Use the following procedure to check communications if the PT and host are not communi-
cating normally.
Check PT settings
Check host settings
Check connections host to PT
Check functional object
Note
The whole system may stop, depending on the method used to turn the power ON and OFF.
Always follow the specified procedure when turning the power ON or OFF.
6-44
Check the cable models and cable pins.
Check cables
Refer to Appendix 5 Preparing Connecting Cables.
Check the communications settings under the System Menu.
Refer to 6-6 Communications Settings.
Check the host settings using the CX-Programmer or other Programming
Device. Refer to Section 4 Connecting to Host with Serial Port and Section 5
Connecting to Host via Ethernet or Controller Link.
Check the connections between the PT and the host. Refer to Section 4
Connecting to the Host with Serial Port and Section 5 Connecting to Host via
Ethernet or Controller Link.
Check the addresses and host names set for functional objects. Be
addresses
sure that all address settings are within range.