Description

Actuators from 10 to 2400 Nm with Modbus-RTU fieldbus protocol compatibility.

Compatible Series

• ER PLUS
• VR/VS
• VRX/VSX - ATEX
• LT - Low Temperature
• DV - DNV
• DVX – DNV/ATEX
• VT PLUS
• MT - multiturn
• All BBPR (GS6) versions
• All POSI-BBPR (GPS) versions

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A SIMPLE AND EFFECTIVE TECHNICAL ARCHITECTURE

The “master-slave” architecture of Modbus-RTU offers great operating flexibility. Each RS485 line makes it possible to associate a master device and 31 slaves over a maximum distance of 1200 meters. Using repeaters, Modbus-RTU allows the connection of 247 actuators to a PLC.

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AN EASY INTEGRATION WITH EXISTING INSTALLATIONS

The deployment of a Modbus-RTU actuator network requires very little infrastructure, that’s only the addition of a serial link cable compatible with the EIA-485 standard.

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AN ACCESS TO ANY TYPE OF NETWORK VIA GATEWAYS

Valpes Modbus-RTU actuators can be integrated into any existing PLC network, using different  communication protocols. The gateways allow a conversion to:

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Modbus TCP/IP

Profibus DP

Profinet

Ethernet/IP

Profibus PA

CANopen

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A HIGH RELIABILITY

Modbus incorporates an error verification code named " cyclic redundancy check " or CRC, relating to all the frames sent. In the event of a weak electrical signal, an error may occur; in which case the message will be reissued until it is correctly understood.

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