Acrodyne supplies the Limitorque MX and QX actuators equipped with DeviceNet to offer the user with predictable, reliable and safe network communications in applications subject to rigorous requirements and environmental extremes.
Network solutions are improved with the addition of DeviceNet to complement Modbus, Foundation Fieldbus H1, Profibus DP_V1 and Profibus PA. DeviceNet complies with CAN-based protocol.
DDC (Distributed Digital Control) Modbus communication
Limitorque’s communication system provides the ability to control and monitor up to 250 actuators over a single twisted-pair cable. The communication network employs Modbus protocol on an RS-485 network and is redundant. The field unit also communicates all actuator status and alarm diagnostic messages over the same communication network.
Foundation Fieldbus communication with Device Type Manager (DTM) technology
The Limitorque MX and QX actuators can be fitted with Foundation Fieldbus protocol that complies with the IEC 61158-2 Fieldbus H1 standard. The field unit device supports several topologies such as point-to-point, bus with spurs, daisy chain, tree or even a combination.
Profibus DP V1 communication with DTM
The Limitorque MX and QX actuators can be fitted with Profibus DP_V1 protocol field units that comply with EN50170 Fieldbus Standard for RS-485 communications. The device supports several topologies such as point-to-point, bus with spurs, daisy chain, tree or a combination. The DTM supports Flowserve’s ValveSight diagnostic engine.
Profibus PA communication with DTM
The Profibus PA protocol complies with EN50170 Fieldbus Standard and Fieldbus physical layer per IEC 61158-2 for communications. The device supports several topologies such as point-to-point, bus with spurs, daisy chain, tree or a combination.
Limitorque MX and QX actuators equipped with DDC can be controlled via Limitorque’s Master Station, which includes:
- Host interface-industry standard Modbus Rtu, ASCI, UDP, and TCP/IP protocols and control
- 5.6 inch TFT touchscreen display for network configuration status
- Configurable polling sequence priority
- Network time protocol for time synchronisation of alarms/diagnostics data to host device
- Modular hot-swappable redundant design
- Email notifications of alarm conditions
- Data/event logging