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FS-8700-17_Opto22.doc Manual
1
OPTOMUX DRIVER DESCRIPTION
The Optomux Driver allows the FieldServer to transfer data to and from devices over either RS-232 or RS-485 using
the Optomux Driver protocol.
The Optomux driver is a client only driver. This means that the driver can poll an Optomux protocol compliant
device but cannot emulate one.
The Optomux protocol provides a large command set. Many of the commands are used for OPTO22 device
configuration. This driver supports the full command set and thus the driver may be used to configure as well as to
poll OPTO22 devices.
1.1
Operating Methods
The Optomux driver provides three methods of operation. Users may use any combination of methods.
1.1.1 Static Operation
The devices to be polled/commanded are configured using the FieldServer CSV file. If the hardware configuration
is fixed and known then this is a suitable method.
1.1.2 Dynamic Operat ion
The commands set can be configured by changing the values in the FieldServer's Data Arrays. This data driven
operating mode is suitable if the hardware configuration may change or if hardware settings may change
dynamically or to change some aspect of the hardware configuration without changing the CSV file and resetting
the FieldServer..
1.1.3 Triggered Operation
This operating mode allows commands to be triggered by changing the value in the FieldServer's Data Arrays. This
operating mode is useful if requiring an action triggered by a remote device.
1.2
Statistics and Command Reponses
All FieldServer drivers report communication statistics that allow the operation of the driver to be monitored.
In addition to the standard statistics, this driver exposes the communication statistics for each port by presenting
them in a user specified Data Array where they can be monitored by a remote device or HMI system.
The Optomux driver also exposes the response status to each poll and command (if required) by writing the
response statuses to a user specified Data Array. This useful feature allows remote devices to check whether a
command has been completed successfully.
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldserver.com
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: support@fieldserver.com
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