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ROTARY INDEXING TABLE CONTROLLER
EF2...B
EF2 - PC CONNECTION |
7.2 Ethernet communication via TCP/IP (via switch)
7.2
Ethernet communication via TCP/IP (via switch)
The SIMOTION D410-2 DP/PN has an onboard IE interface which is called X127 (SS-IE). This interface has an IP
address and communicates via TCP/IP. As part of the TCP/IP communication between the SIMOTION D410-2 DP/
PN and the connected computers, an " Address Resolution Protocol" (ARP), a mapping table of the network address
of a device to the hardware address ( MAC address) of the device, is created and stored on the computer. This pro-
cess remains hidden for the user, which is done automatically, so that the use of this protocol is only noticeable
when a communication error occurs.
The validity period of an ARP address can become a problem if there are incorrect entries or entries which are no
longer valid. As long as the incorrect entry exists it is not possible to communicate with the respective host. The error
is usually not attributed to the ARP protocol but to the devices or network. To update an incorrect or old ARP table,
the command <arp -d> can be entered into the MS DOS command prompt in Windows as shown in following figure.
•
Entering a command into the DOS command prompt in Windows <arp -d>