Publication Number AD05006002E
Page 9
register data. So, the Modbus TCP master will need to be configured to poll this
gateway for 5 input registers and 4 output registers to accommodate the 9 input
bytes and 8 output bytes.
Number of modules:
9
Total current consumption 15V:
257 mA
Total current consumption AUX:
300 mA
User data volume:
Current
Maximum
Inputs
9 Byte 799 Byte
Outputs
8 Byte 642 Byte
Image size
18 Byte 1000 Byte
SWD cycle time:
cyclical also
acyclic
125Kbit/s
4.06ms
7.10ms
250Kbit/s
2.03ms
2.03ms
The starting Modbus Data Addresses for the input and output data in the
SmartWire-DT gateway are as follows:
Starting address for the Input data: 0, Length = 5 registers
Starting address for the output data: 2048, Length is 4 registers
When clicking to select each SmartWire-DT device attached to the SmartWire-
DT gateway in the offline mode, under each device’s Device Information tab the
actual Modbus Data Address for each bit will be displayed. Note that the high
byte of the first input and output data register is where the input and output data
for the first device is located. The second device uses the low byte of the first
data registers and so on. This is very important because this is how each
SmartWire-DT device is controlled and monitored by the ELC controller.
Using the SWD-Assist software, go online with the EU5C-SWD-EIP-MODTCP
Ethernet gateway. Download the offline configuration by selecting PC to Device
under Planned Configuration. Then single click the gateway to select it. The
Device Parameters tab for the gateway displays the Fieldbus Protocol the
module is configured for, which is Modbus TCP for this example. This must be
selected in the Offline mode before downloading to the module. The Ethernet
Parameters tab displays the Ethernet settings for this module. To change any of
these parameters in the Online mode, click the IP address and the following
window will open:
