Technical data

OM 1191 45
Embedded Fieldbus
Embedded Fieldbus
Overview
The MD5 can be set up to accept control from an external
system using standard serial communication protocols. When
using serial communication, the ACH550 can either:
• Receiveallofitscontrolinformationfromtheeldbus,
or
• Becontrolledfromsomecombinationofeldbuscontrol
and other available control locations, such as digital or
analog inputs, and the control panel.
Twobasicserialcommunicationscongurationsareavailable:
• Embeddedeldbus(EFB)–UsingtheRS485interface
at terminals X1:28…32 on the control board, a control
system can communicate with the drive using any of the
following protocols:
— Modbus
®
— Metasys
®
N2
— APOGEE
®
FLN
— BACnet
®
• Fieldbus adapter (FBA) – See section Fieldbus Adapter
on page 67.
Figure 6: MD5 Connections
Control Interface
Ingeneral,thebasiccontrolinterfacebetweentheeldbus
system and the drive consists of:
Protocol Control Interface Reference for more information
Modbus
• Output Words
– Control word
– Reference1
– Reference2
• Input Words
– Status word
– Actual value 1
– Actual value 2
– Actual value 3
– Actual value 4
– Actual value 5
– Actual value 6
– Actual value 7
– Actual value 8
The content of these words is dened
by proles. For details on the proles
used. The MicroTech III control and
the MD5 communicate over Modbus.
All Modbus values are factory set and
tested.
N2
• Binary output objects
• Analog output objects
• Binary input objects
• Analog input objects
N2 protocol technical data
FLN
• Binary output points
• Analog output points
• Binary input points
• Analog input points
FLN protocol technical data
BACnet
• Device management
• Binary output objects
• Analog output objects
• Binary input objects
• Analog input objects
BACnet protocol technical data
NOTE: The words “output” and “input” are used as seen from
the eldbus controller point of view. For example an
output describes data ow from the eldbus controller
to the drive and appears as an input from the drive
point of view.
Planning
Network planning should address the following questions:
• What types and quantities of devices must be connected
to the network?
• What control information must be sent down to the
drives?
• What feedback information must be sent from the drives
to the controlling system?