Hitachi S10Mini SV.Link, Руководство по оборудованию

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4 USER GUIDE
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4.3 System Definition Information
Set the items ② and ③ below for SV.LINK (LQE021). Ensure that the item ② setting is
not identical to that for MELSEC. As regards item ③ ), however, select the same setting for
the S10mini and MELSEC.
① Physical address An original number is set for each SV.LINK ROM.
② IP address
③
Subnetwork mask
④ Route information This item cannot be set because SV.LINK does not support
communications via router link.
NOTE
No dedicated setup tool is provided for SV.LINK. For IP address and subnet
mask settings, use the ET.NET system tool (Model No. S-7890-29; tool name:
ET.NET System For Windows®.
4.3.1 Physical
address
A 48-bit physical address is assigned to each SV.LINK.
This is a unique address which is set on the ROM; the user cannot change it. An example of
a physical address (in hexadecimal) is shown below.
Example: 00008700B001
4.3.2 IP address
The IP address used for TCP/IP and UDP/IP is a 32-bit logical address. An IP address
consists of a network number and a host number. There are three types of address
assignment depending on the number of hosts.
(i) Class A. (The high-order one bit of the network number is set to 0.)
Network number
(8 bit)
Host number (24 bits)
(ii) Class B. (The high-order two bits of the network number are set to 10 in binary.)
Network number
(16 bit)
Host number (16 bits)
(iii) Class C. (The high-order three bits of the network number are set to 110 in binary.)
Network number
(24 bit)
Host number (8 bits)
Define these items for each SV.LINK by using the ET.NET system tool