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Manual Structure
18 EtherCAT Communication Unit USER’S MANUAL (I574-E1)
Note The above page is only a sample for illustrative purposes. It is not the actual content of the manual.
Special information in this manual is classified as follows:
Precautions for Safe Use
Precautions on what to do and what not to do to ensure safe usage of the product.
Precautions for Correct Use
Precautions on what to do and what not to do to ensure proper operation and performance.
Additional Information
Additional information to read as required.
This information is provided to increase understanding or make operation easier.
Special Information
3 - 17
3 Network Startup
DeviceNet Communications Unit User’s Manual (I581-E1)
3-2 Network Configuration (Scan List Configuration)
3
3-2-2 Fixed Allocation Steps
The actual fixed allocation steps for the DeviceNet Communications Unit are shown below.
1
Power on the inverter(s) first and configure the following settings according to 3-1 Inverter
Configuration on page 3-2.
Set the node address. According to the fixed allocation node address setting example above,
set inverter parameter P192 (DeviceNet Node Address).
Set the type of Remote I/O. Set inverter parameter P046 (Assembly Instance No.) that best
suits your application.
Precautions for Correct UsePrecautions for Correct Use
Be sure to set the type of Remote I/O at this point. The number of words occupied by the
DeviceNet Communications Unit varies depending on the set Remote I/O type. Unless the
Remote I/O type is set correctly, automatic network configuration cannot be completed
successfully.
To connect additional DeviceNet Slaves, set the node addresses for them simultaneously at
this point.
2
Turn off and then on the inverter(s) again. Then, power on all network components (Master Unit,
other Slaves, and Communications power supply).
3
Once the network is restarted with the new settings, check that the DeviceNet Communications
Unit's LED indicators indicate normal operation.
Following the steps below to configure the Master Unit causes both the MS (Module Status) and
NS (Network Status) LED indicators to light green.
If the LED indicators indicate a different pattern, please refer to Section 6 Troubleshooting on
page 6-1 to take corrective action.
(1) Change the CS/CJ-series CPU Unit to Program mode.
(2) Set the Master Function Enable switch (Master Unit's allocation relay area word n, bit
06) from OFF to ON.
Note Skip this step if the Master function is already enabled.
(3) Set the Scan List Clear switch (Master Unit's allocation relay area word n, bit 01)
from OFF to ON.
Note Skip this step if the Scan List is already enabled.
(4) Select a fixed allocation area between 1 and 3 (Master Unit's allocation relay area
word n, bit 08 to 10).
(5) Set the Scan List Enable switch (Master Unit's allocation relay area word n, bit 00)
from OFF to ON to enable the Scan List.
04 word 3204 This DeviceNet Communications
Unit [Node address 4]
Extended Control I/O setting:
Occupies 4 output words
word 3304 This DeviceNet Communications
Unit [Node address 4]
Extended Control I/O setting:
Occupies 4 input words
word 3305word 320505
word 3306word 320606
word 3307word 320707
08 word 3208 – (Not allocatable) word 3308 16-point Input Unit
[Node Address 8]
09 word 3209 ··· word 3309 ···
Fixed
Allocations
Address
Output Allocation Relay Area Input Allocation Relay Area
Allocation
Relay 15 ~ 0 Allocation
Relay 15 ~ 0
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Operation Steps
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