Hitachi L100DN DeviceNet Series Addendum Read This First Manual page 40

40
Network Control and Monitoring
Inverter Networking Overview
The L100DN DeviceNet Series inverters can operate under local control (via operator
input via the keypad or via input terminal signals). This control method was covered in
the previous section, "Operations and Monitoring," and also in the L100 inverter
manual's Chapter 4, also named "Operations and Monitoring."
The "Network Control and Monitoring" section will first show you how to connect the
inverter to a DeviceNet network. Next, you will learn how to monitor and control the
inverter from the network master (host computer). These instructions are presented in a
series of steps, with each one preparing your application for the next one. Therefore, be
sure not to skip any steps in this section.
NOTE: Be sure to install the inverter and perform the powerup test described in the
"Inverter Mounting and Installation" on page 9 before attempting network operation.
The step to DeviceNet network control and monitoring are:
1. Design your network layout
2. Connect network devices
a. Add network termination
b. Add network power
3. Prepare network host computer
4. Prepare inverter for network
5. Understand the inverter's I/O structure
a. Polled I/O
b. Explicit messaging
6. Monitor test – verify network host can monitor inverter
7. Control test – verify network host can control inverter
8. Use DeviceNet Explicit Messaging
9. Create a host computer control program
Note that the test to monitor the inverter from the network occurs before the test to
control the inverter via the network. The setup for monitoring is more simple, and helps
prepare the devices for the control step.