Limitorque has been a global leader in the development and deployment of network products for electric valve actuators. Network products include DDC-100 (Modbus), Foundation Fieldbus H1, Profibus DP-V1 and Profibus PA. In fact Limitorque is the only major valve actuator manufacturer to supply Profibus PA.
The Limitorque Master Station II is a revolutionary step forward in control technology. The device is capable of controlling up to 250 valve actuators, offers full redundancy, provides easy-to-use HMI interfaces, and allows for high-speed data-transfer via a Modbus DCS port or Modbus Ethernet port. In addition, a built-in web server can be used for monitoring network status from any remote station using TCP/IP.
This next generation master station is designed and manufactured by Limitorque specifically for use with Limitorque΄s line of DDC-100 field units. For power, petrochemical, oil and gas, water and wastewater applications, the Master Station II acts as a single-source controller for up to 250 actuators or other controlled devices (pumps, solenoids, mixers etc).
The Master Station II is a plug and play solution that provides complex control and diagnostics of Limitorque field units through a simple touch panel operator interface. Enclosure options include standard 19" rack enclosure, NEMA 4/4X wall-mountable enclosure and standalone cabinet enclosure.
Supports all Limitorque DDC-100 field units: MX, L120, LY
Controls up to 250 MOVs
User-friendly touch panel operator interface:
- Permits configuration and control of DDC-100 network
- Configures communication to host or DCS (Distribution Control System)
- Password protected
Optional Hot Standby Configuration:
Automatically assumes control on Primary Master Failure or on command from the DCS or touch panel
Provides realtime status of field units through continuous cyclical polling
Modbus RTU and TCP/IP:
- 10/100 baseT
Built-in Web server for ease of actuator and network diagnostics
Options for actuator control:
- Host control via the Master Station II Modbus DCS port or Modbus TCP/IP connection
- Direct control via the Master Station II touch panel
Both options provide: Network Status, Actuator Status, Control of all actuators on network, Valve emergency shutdown (ESD)
Available in standard 24 VDC and 100-240 VAC
No batteries required
Virtually maintenance free
Backed by IndMac support and service
DDC-100 supports up to 250 actuators on a single Modbus redundant loop network
DDC-100 networks are controlled via the Master Station II or Direct-to-Host
Master Station II DCS connections support Modbus Serial or Modbus TCP/IP
Foundation Fieldbus H1