7 Modbus/TCP – SmartWire-DT implementation
7.3 Device informations Gateway
76 SmartWire-DT Gateway EU5C-SWD-EIP-MODTCP 08/17 MN120003Z EN www.eaton.com
A similar rule applies to output data. If a module's data storage area ends in a
high byte (odd number of data bytes), a padding byte will be inserted in this
case as well so that the word data of the following module will start in a new
Modbus register.
Take the information in the SWD-Assist planning program into account. The
information used to assign addresses to data is found in the export file.
7.3 Device informations Gateway
The gateway's device name can be found in register 0x100 - 0x100B ￫
Table 23, page 74.
Register 0x100C: "Gateway-Status“
Register 0x100C holds information regarding the SmartWire-DT gateway's
device status. This information is described in greater detail below:
7.4 Time monitoring and Modbus-TCP operating mode
The following registers affect important Modbus-TCP communication behav-
iors, such as the response when a communications connection is lost, the
operating mode of the Modbus connection, and saving these parameters as
new default parameters for the gateway.
Registers 0x1020, 0x1120, 0x1121: "Time monitoring"
These registers are used to define the behavior of the SmartWire-DT mod-
ules' outputs when communications are lost on the Modbus connection.
Register 0x1120 can be used to specify a time, in milliseconds, after which
the outputs will be switched off if any of the following conditions are met:
• The controller switches from "Run" to "Stop"
• The Ethernet cable that is connected to the gateway is disconnected
• No Modbus-TCP communications between the PLC and the gateway
Modbus
register
R/W Data type &Value Description
0x100C R WORD Gateway status
0x0000 no error
0x0001 FAILSAFE: no SmartWire-DT communication
0x0002 No planned SmartWire-DT configuration
present
0x0004 no target configuration present
0x0040 Renew Target Configuration
0x007F SmartWire-DT initialization
0x0080 Wiring test active
0x0081 Error when comparing the target configuration
and the actual configuration
0x0082 Error when comparing the target configuration
and the planned SmartWire-DT configuration
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