Lake Shore Cryotronics Measure Ready M91 FastHall, Руководство пользователя

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4.4.2 Ethernet The Ethernet interface provides a means of connecting the MeasureReady™ M91
FastHall™ measurement controller to a network. Networks provide the ability to
communicate across large distances, often using existing equipment (the internet,
pre-existing local networks). The Ethernet interface of the M91 provides the ability to
use TCP socket connections (section 4.4.2.4) to send commands and queries to the
instrument using the common command set detailed in section 4.5.2.
Configuration and status for these network configurations can be found from the
front panel by tapping the Settings menu (top left corner of the screen). Ethernet set-
tings can be found under the Connectivity tab. Touch either item to see further set-
tings.
4.4.2.1 Ethernet Configuration
Configuration and status for the Ethernet connection can be found from the front
panel by tapping the Settings menu (top left corner of the screen). Select Ethernet. A
screen is displayed showing network status and IP settings. In the example below, the
network is disconnected.
FIGURE 4-6
Ethernet settings
Touching the IP Configuration item allows the user to select DHCP or Static as the
Ethernet configuration method. If static is selected, then the fields for IP address,
gateway, subnet, and DNS are presented and can be entered at that time.
4.4.2.2 Network Address Parameters
Network address parameters include the IP address, the subnet mask, gateway
address, and DNS address. The network address parameters of the M91 can be config-
ured using one of two methods: DHCP or Static-IP.
D
IP Address: an IP address is required for a device to communicate using TCP/IP,
which is the protocol generally used for Ethernet devices and the M91. The M91
supports both IPv4 and IPv6. However, for simplicity, references to the IP protocol
from this point forward will be referring to IPv4.
An IP address is a 32-bit logical address used to differentiate devices on a net-
work. It is most often given in dotted decimal notation, such as nnn.nnn.nnn.nnn
where nnn is a decimal number from 0 to 255.
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Subnet Mask: a sub network, or subnet, is a group of devices within a network that
have a common, designated IP address routing prefix. A subnet mask is a 32-bit
“bit mask” that signifies which part of the IP address represents the subnet rout-