Flowserve MX FOUNDATION Fieldbus Field Unit - Manual (Page 11)

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MX/QX FOUNdaTION Fieldbus Field Unit FCd LMENIM2330-01 – 08/11
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2.2.2 MX/QX FF Interface Board
The MX/QX FF field unit interface board is installed in the actuator controls compartment (Figure 2.3).
This unit permits the actuator to be controlled by a DCS or master station over the fieldbus network.
The following commands and feedback information are transmitted through this unit:
• OPEN, CLOSE, and STOP commands
• ESD (Emergency Shutdown) commands
• Partial Stroke Test commands
• Unit output torque (0-100% rating)
• Go-to-position commands
• Actuator status, alarm, and diagnostic messages
• User analog input feedback