ESP302 Controller
Start-Up Manual
A1270B1 - EDH0411En1021 – 02/20
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2.5.1
Axis Connectors (AXIS 1 – AXIS 3)
Each installed axis driver card features a SUB-D25F connector to attach a cable
(supplied with every Newport stage) between the controller and a motion device.
Figure 9: Axis connectors.
Please see the next section for installation instructions.
2.6
Ethernet Configuration
Figure 10: Ethernet configuration.
2.6.1
Communication Protocols
The Ethernet connection provides a local area network through which information is
transferred in units known as packets. Communication protocols are necessary to dictate
how these packets are sent and received. The ESP302 Controller/Driver supports the
industry standard protocol TCP/IP.
TCP/IP is a “connection” protocol and in this protocol, the master must be connected to
the slave in order to begin communication. Each packet sent is acknowledged when
received. If no acknowledgement is received, the information is assumed lost and is
resent.
2.6.2
Addressing
There are two levels of addresses that define Ethernet devices. The first is the MAC
address. This is a unique and permanent 6 byte number. No other device will have the
same MAC address. The second level of addressing is the IP address. This is a 32-bit
(or 4 byte) number. The IP address is constrained by each local network and must be
assigned locally. Assigning an IP address to the controller can be done in a number of
ways (see section 3.6: “Connecting to the ESP302 through Ethernet port”).
