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Modbus Slave OPC Server
Product number: ModbusSlave-OPC
The Modbus Slave OPC Server supports
communications to Modbus RTU and ASCII master applications. The OPC server
supports the basic memory types and signal types
for Modbus. The OPC Server supports multiple devices and multiple ports
with one instance. The OPC server is multi-threaded for high-speed performance.
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Pricing
Single System License:..$ 495.00 US
Site License:.................. $ 2,500.00
US
Corporate License:.......$ 5,000.00 US
To
purchase product and receive an authorization code visit our
on-line
store, contact your Open Automation Software authorized distributor, or download the
Open Automation Software order form and fax the form with purchase order or credit
card information to 1-(303)-679-8698.
The setup of the OPC server is simple with a tag
configuration that allows the user to define a point as a specific device
address between 1-247, a memory type, an offset, and a signal type. These
tags are defined under a port object. Multiple ports can be used at the
same time if desired.
When the server is enabled for communications
all tags will start with the OPC data quality of uncertain. When either on
OPC client or a Modbus master sets the value of the tags the quality will go to
good. If you wish to have the quality of the tags start with good quality
set the parameter Start With Good Quality under Communications.
When the server receives a request for data on a
port it will get the values for the first tags in the configuration that matches
the request. If more than one tag has the same device address, memory type, and
offset the value from the first tag in the configuration that matches the
request will be passed back to the master. If the master sends a force or write
data request the server will set all tags that match the same device address,
memory type, and offset.
If the master queries for a device
that is not defined under the port object no response will be provided. This
will allow the OPC server to exist on a multi-drop network without interfering
with communications with other devices. If the master requests multiple values
and only some of the offsets exist in the configuration the non-existent offsets
will be set with a value of 0. If the master sends a multiple or single offset
force or set value(s) and at least one tag with the correct device address,
memory type, and offset is found a respond will be given. If no tag matches the
set request no response will be given.
Features Include:
 | Multiple master connections supported through multiple serial ports. |
| Multiple device addresses supported for each master connection. |
| Supports multiple OPC clients. |
| Multi-Threaded for high speed. |
| Compatible with Microsoft Windows 95 with DCOM, Windows 98, Windows NT 4.0,
Windows 2000, and Windows XP. |
| Supports Modbus RTU and ASCII protocols. |
| ModSoft compliant mnemonics for memory types. |
| CSV file import/export feature for easy setup in third party spreadsheet or database. |
| GUI allows one step procedure to setup thousands of Items. |
| Remote tag browsing from OPC clients. |
| Device simulation for off-line data testing. |
| Easy installation, self-registering. |
