FieldServer Driver – Fieldbus
|Interface:||FS-B40X — ISA Slot Card|
The ControlNet driver allows the Fieldserver to transfer data to and from devices using ControlNet protocol. The SST 5136-CN-ISA Communications Adapter card is included with the FS-40X style FieldServer. The FieldServer can communicate using scheduled or un-scheduled transfers.
When the FieldServer originates PCCC messages to communicate with PLC5 controllers, it uses connected messages. This provides fast reliable communication to the other node. When another device originates PCCC messaging, the FieldServer will emulate a PLC5 controller supporting connected or unconnected messages to files N7 through to N32.
When communicating with scheduled transfers, the connections are defined using the SST configuration tool. Any connection that can be created can be monitored or written if allowed.
Data Types Supported:
Data Types Supported Are:
For PLCs or Local Node use, 32767 instances are available for addressing.
Unscheduled Data Access
This makes use of integer files.
File numbers 7-39 are available locally in the FieldServer and it is possible to access remote file numbers 1-999. There are 1000 addresses available in each file.