7.9.21.6 Telnet
Telnet is used to access the same commands that are available through the support
software terminal emulator
(p. 530). Start a Telnet session by opening a DOS
command prompt and type in:
Telnet xxx.xxx.xxx.xxx <Enter>
where xxx.xxx.xxx.xxx is the IP address of the network device connected to the
CR1000.
7.9.21.7 SNMP
Simple Network Management Protocol (SNMP) is a part of the IP suite used by
NTCIP and RWIS for monitoring road conditions. The CR1000 supports SNMP
when a network device is attached.
7.9.21.8 Ping (IP)
Ping can be used to verify that the IP address for the network device connected to
the CR1000 is reachable. To use the Ping tool, open a command prompt on a
computer connected to the network and type in:
ping xxx.xxx.xxx.xxx <Enter>
where xxx.xxx.xxx.xxx is the IP address of the network device connected to the
CR1000.
7.9.21.9 Micro-Serial Server
The CR1000 can be configured to allow serial communication over a TCP/IP port.
This is useful when communicating with a serial sensor over Ethernet with micro-
serial server (third-party serial to Ethernet interface) to which the serial sensor is
connected. See the network-link manual and the CRBasic Editor Help for the
TCPOpen() instruction for more information. Information on available network
links is available in the appendix Network Links
(p. 652).
7.9.21.10 Modbus TCP/IP
The CR1000 can perform Modbus communication over TCP/IP using the Modbus
TCP/IP interface. To set up Modbus TCP/IP, specify port 502 as the ComPort in
the ModBusMaster() and ModBusSlave() instructions. See the CRBasic Editor
Help for more information. See Modbus
(p. 411).
7.9.21.11 DHCP
When connected to a server with a list of IP addresses available for assignment,
the CR1000 will automatically request and obtain an IP address through the
Dynamic Host Configuration Protocol (DHCP). Once the address is assigned, use
DevConfig, PakBusGraph, Connect, or the CR1000KD Keyboard Display to look
in the CR1000 Status table to see the assigned IP address. This is shown under
the field name IPInfo.
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