DMA peripherals

In some network setups, special third-party interfacing hardware called "DMA peripherals" is used to connect a DMA to third-party devices. Typically, the intelligence is embedded in the DMA, while the peripherals are used for medium interfacing and conversion.

Frequently used peripherals include:

• Serial Gateway (RS232 and/or RS485 ports)
• IO Gateway (analog and digital IOs)
• HMS Gateway (RF ports, HMS compliant)
• GPIB Gateway (IEEE-488 ports)
• ...

Note

When interfacing with IO gateways through DataMiner connectors, the following guidelines should be taken into account.

• All analog and digital IOs must be listed in a normalized way so that they reflect the actual voltage/status.
• Create a virtual protocol that contains the parameters to be included in the virtual element.
• Specify the necessary multiplication and offset factors in order to deal with parameter units (e.g., 0.1 V/oC)
• Virtual protocol design is independent of the IO Gateway being used.