Appendix 1 Specifications
• Ethernet
Item Specifications
Network address 1 to 127
Node address 1 to 254
UDP port number 1024 to 65535 (See note 1.)
IP address 0.0.0.0 to 255.255.255.255 (See note 2.)
Subnet mask 0.0.0.0 to 255.255.255.255
Default gateway 0.0.0.0 to 255.255.255.255
IP proxy address “”(blank), 0.0.0.0 to 255.255.255.255
Conversion table Node address: 1 to 253
IP address: 0.0.0.0 to 255.255.255.255
Note 1. The default UDP port number is 9600.
2. Do not set the following values for the IP address.
• Host ID with all bits set to 0 or 1. (Example: 192.168.21.0
)
• Net ID with all bits set to 0 or 1. (Example: 255.255
.21.16)
• Subnet ID with all bits set to 1. (Example: 192.168.255
.16)
• IP addresses that begin with 127. (Example: 127
.35.21.16)
● Controller Link Specifications (with NS-CLK21 Controller Link Interface
Unit Mounted)
Item Specification
Communications
method
N:N token bus
Code Manchester code
Modulation Baseband code
Synchronization Flag synchronization (conforming to HDLC frames)
Transmission path
type
Multidrop (bus)
Baud rate and
maximum transmis-
sion distance
The maximum transmission distances depends on the baud rate setting as follows:
2 Mbits/s: 500 m
1 Mbits/s: 800 m
500 Kbits/s: 1 km
Media Specified shielded twisted-pair cable
2 signal lines and 1 shield
Connections to
nodes
PLCs : Connected via terminal block
Personal computers: Connected via special connector (provided)
Max. number of
nodes
32 modes
Communications
functions
Data links and message service
Number of data link
words
• Transmission area per node:
1,000 words max. (2,000 bytes)
• Send/receive data link areas per SYSMAC CS-series PLC:
12,000 words max. (24,000 bytes)
• Send/receive data link areas per SYSMAC C200HX/HG/HE, CVM1, or CV-series
PLC:
8,000 words max. (16,000 bytes)
• Send/receive data link areas per personal computer:
32,000 words max. (64,000 bytes)
• Total send data link words on entire network:
32,000 words max. (64,000 bytes)
Data link areas Bit (CIO, and LR Area), data memory (DM Area), expansion data memory (EM
Area)
Message length 2,012 bytes max.
RAS functions • Polling unit backup function
• Self-diagnosis (hardware check at startup)
• Internode tests and broadcast test (via FINS commands)
• Watchdog timer
• Error log
Error correction Manchester code check
CRC check (CCITT.X
16
+X
12
+X
5
+1)
A-9
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