Basler Electric BE1-700 - Manual (Page 414)

• Only one user can be polling the relay at a time. If another user is using the Ethernet connection, you
must wait until their session is complete.
For Direct Connections (PC to Relay without a LAN)
Requirements
• A special Ethernet crossover/cross-wired Cat 5 or Cat 5e cable less than 100 meters should be used.
A standard Ethernet cable will not work for a back-to-back PC connection (i.e., directly connected
without a hub/switch/router) to a relay.
• If the relay is set for DHCP, then the PC must also be set for DHCP.
Troubleshooting Suggestions
• E-mail alerts will not work on a direct PC-to-relay connection.
• On some computers, particularly those with older Windows operating systems, it may be necessary to
release/renew the DHCP connection on the PC to get it to the default subnet that matches the relay.
This can be done with the ipconfig.exe or winipconfig.exe (Windows ME, 98 or 95, only) application
provided with Windows.
• If the direct connection is not working, try using a hub, switch, router, or LAN to verify that the PC and
relay are communicating. In this case, do not use crossover cable(s).
• If some commands work and some do not, the security settings for COM1 may be set to the default
state which allows reading parameters via Ethernet but prevents writing. These settings can be
changed from BESTCOMS but ONLY via a RS-232 connection to the relay. For security reasons, the
Ethernet port cannot be used to turn on Ethernet write options.
• If the scan function of BESTCOMS shows an address of 0.0.0.0 when the relay is set to DHCP, the
communications processor of the relay is still being initialized. Wait 30 seconds and then try "Scan for
Connected Devices" or "Refresh" again.
• If the scan function in BESTCOMS shows the relay but no other Ethernet functions work, then it may
be necessary to set the static IP address of the PC to the same IP address shown in BESTCOMS.
But, change the part after the last period to a different number and change the subnet mask to
255.255.255.0.
15-22 BE1-700 BESTnet Communication 9376700990 Rev M