Bronkhorst®
Instruction Manual mini CORI-FLOW ML120
9.17.097G
17
2.7.3.3 Other fieldbuses
PROFIBUS DP
PROFIBUS DP is a 2-wire, RS485-based industrial data communication standard (fieldbus) which allows automation
components (e.g. sensors, actuators and controllers) to exchange information.
Consult
Instruction manual PROFIBUS DP interface
(document no. 9.17.025) for more information about setting up a
PROFIBUS DP network.
DeviceNet™
The DeviceNet™ interface offers a direct connection to a DeviceNet™ network, according to the mass flow controller profile
specified by the ODVA. The Bronkhorst® DeviceNet™ instrument is a Group 2 Only Server device whose messages comply
with the Controlled Area Network (CAN) 2.0A standard and with the DeviceNet™ protocol.
Consult
Instruction manual DeviceNet™ interface
(document no. 9.17.026) for more information about setting up a
DeviceNet™ network.
EtherCAT®
Ethernet for Control Automation Technology (EtherCAT®) is an open high performance Ethernet based fieldbus system.
Consult
Instruction manual EtherCAT® interface
(document no. 9.17.063) for more information about setting up an
EtherCAT® network.
PROFINET
The PROFINET interface is 100% Ethernet compatible and is used for data exchange between I/O controllers (PLC, etc.) and
I/O devices (slaves, field devices). PROFINET uses the proven communication model and application view of PROFIBUS DP.
Consult
Instruction manual PROFINET interface
(document no. 9.17.095) for more information about setting up a
PROFINET network.
2.8
Micro switch operation and LED indications
Using the two colored LEDs and the micro switch on the ML120 series,
several actions can be monitored and started.
·
The green
•
LED is used for status indication.
·
The red
•
LED is used for errors, warnings and messages.
·
The switch can be used to start several actions, such as auto-zero,
restore factory settings and bus-initialization actions, if applicable.
For the zero-procedure see
.
For an overview of all possible LED indications, see
The micro switch on top of the
mini CORI-FLOW ML120
series can be operated with a thin, metal or hard plastic pin, e.g.
the end of a paperclip. Avoid excessive force when operating the switch.
2.9
Purging before use
In systems for use with corrosive, reactive or explosive media, purging for at least 30 minutes with a dry, inert gas (like
Nitrogen or Argon) is absolutely necessary before use. After use with corrosive or reactive fluids, complete purging is also
required before exposing the system to air.
Prevent chemical reactions inside the tubes or instrument as this will tend to clog up or corrode the system.
2.10
Zeroing
Zeroing of a
mini CORI-FLOW
instrument is required each time process conditions have been changed.