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General Information
1.1 INTRODUCTION
This section provides a description and specifications for ICS's Model 9009
and 9099 Ethernet to Modbus Interfaces. All specifications and functional
descriptions apply to both units unless otherwise stated.
1.2 DESCRIPTION
The Model 9009 and 9099 Ethernet to Modbus Interfaces provide a user with
multiple ways to control Modbus RTU slave devices with RS-232 and RS-422/
RS-485 signals. The Model 9009 is a PC board assembly with an Ethernet,
GPIB and USB user interfaces. The Model 9099 is an enclosed unit that has
an Ethernet user interface. Both units have a 9-pin connector with user se-
lected RS-232 or RS-422/RS-485 signals for controlling Modbus RTU slave
devices.
In both units, the Ethernet Interface provides a user with multiple protocols
and conversion capability to control serial Modbus RTU devices. The Ethernet
Interfaces support the VXI-11, raw-socket and Modbus TCP/IP conversion and
include a webserver with HTML control pages for the more popular tempera-
ture controllers.
The VXI-11 and raw-socket protocols let the user send simple commands
with ASCII values over a 10/100 Mbs TCP/IP network to control and query
Modbus slave devices. The simple commands are converted into the Modbus
RTU messages and the CRC checksum is added to make a complete Modbus
RTU packet. The Modbus RTU packets are sent serially over a RS-232 link
to a single Modbus slave device or over a RS-485 network to one or multiple
Modbus devices. Responses are checked and valid response data from a query
is returned when the 9099 is next addressed to talk.
Содержание 9099
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Страница 24: ...1 20 1 Figure 1 3 9099 Certificate of Compliance ...
Страница 54: ...3 8 3 Figure 3 1 Status Reporting Structure Flash Configuration Reset ...
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Страница 161: ...A 49 A4 Refer to the ErrorLogger utility for the error value definitions Error Meaning 0 No error ...