Flowserve Limitorque MX DeviceNet Field Unit Manuel d'utilisateur télécharger pdf (Page 11)

Limitorque MX DeviceNet Field Unit FCD LMENIM2328-00 – 11/05

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The MX features include:

Non-intrusive setup •

Separately sealed terminal chamber •

Absolute encoder for valve position sensing (no battery required) •

32-character LCD for indication and calibration with conﬁguration permitted in six languages. •

Sophisticated electronic control, monitoring, and diagnostic capabilities with LimiGard™ •

technology

2.2.2 DeviceNet Field Unit

The DeviceNet ﬁeld unit is installed in the MX controls compartment. This unit permits the actuator to

be controlled by a host controller, typically a PLC, via the DeviceNet network. The DNFU includes two

high-level, surge-protected, and isolated network communication channels, conﬁgurable digital I/O, and

conﬁguration via LCD screen. The following commands and information may be transmitted over the

DeviceNet network:

“OPEN,” “STOP,” and “CLOSE” commands •

“ESD” and “MOVE–TO” position commands •

Actuator status and alarm messages •

Six digital inputs and two analog inputs for user •

A surge-protected and isolated communication channels •

MX control panel conﬁguration •

Torque output (for reference only) and position feedback •

Four digital outputs (standard) •

Figure 2.2 – DeviceNet Field Unit

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Flowserve Limitorque MX DeviceNet Field Unit Manuel d'utilisateur Page 11