C
HAPTER
1 -
D
YNA
S
TAR
2000 S
ECURE
T
ERMINAL
S
ERVER
Product Overview
Terminal Server Overview
DS2000-TS Administrator’s Guide
1 - 2
The
DS2000-TS's
device integration provides investment and operational savings compared to alternative
solutions involving multiple less-integrated devices. Investment savings include both acquisition cost as
well as space allocation and engineering requirements. Power system requirements are consolidated and
simplified, with the
DS2000-TS
supporting direct feeds from a wide range of DC power sources commonly
used at industrial sites. Operational savings come from reduced maintenance and administration, including
having fewer different software-based devices to coordinate for network configuration, diagnostics and
software upgrades.
1.2
T
ERMINAL
S
ERVER
O
VERVIEW
The
DS2000-TS
Terminal Server feature is typically used to enable a host-computer application based on
TCP/IP protocol to communicate with remote industrial devices that have an Async serial network interface
(see
). All communication is in IP-format from the central host to/from the remote site. The
DS2000-TS
Terminal Server feature at the remote site disassembles each TCP/IP packet and provides an
Async serial stream to the remote device. In the reverse direction, Async responses from the device are
assembled into TCP/IP packets, appropriately addressed and routed to the host application. More
specifically, all traffic on a
DS2000-TS
serial interface is mapped to/from an IP address and a specific TCP/
IP port or socket number.
Figure 1-2. Local Terminal Server
There are several variations of the Terminal Server application, described in the following paragraphs.
1.2.1 Local Terminal Server
This is the typical application involving a local IP-host, i.e., a host collocated with the serial devices and
attached to a
DS2000-TS
port either directly or via a Local Area Network (LAN). The IP host may be a
distributed application server or a PC-based HMI device at the remote site.
Serial Devices
TCP/IP
Ethernet Host
Application
S1
S6
S5
S2
S3
S8
S7
S4
DynaStar 2000-TS
IP addr: x.x.x.x
Socket #s, e.g.: 10101,
10102, ...10132
Содержание DynaStar DS2000-TS
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Страница 36: ...CHAPTER 3 Configuration Basics Terminal Server Configuration Example DS2000 TS Administrator s Guide 3 6...
Страница 70: ...APPENDIX A Port Functions Protocol Monitoring DS2000 TS Administrator s Guide A 22...
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