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Appendix D: Modbus-TCP Client Configuration Manager 47 (70)
Two things can happen when loading an old configuration:
• Configuration valid:
The linking device will reboot and automatically use the previously stored configuration.
• Configuration not valid:
The linking device will produce an error message. The chosen configuration will not be
accepted or loaded into memory.
Before loading a previously stored configuration, locate any authentication information
associated with it. If a valid configuration is loaded that is protected by a password, the
linking device can not be reconfigured until the correct authentication information has
been provided.
D.3.3 Mapping Overview
This page provides a description of all data resulting from the transactions of the currently
applied configuration. It is divided into two parts. The first part describes the linking device
interface to the EtherNet/IP network, and the second part all applied transactions on the
Modbus-TCP network.
If needed, it is possible to print the configuration to paper. Click the printer symbol to the right
on the mapping overview page to access a printer friendly version of the mapping overview.
EtherNet/IP Network
The I/O mapped data will always be presented according to the following priority order:
• Input data
Data from the Modbus-TCP network to the EtherNet/IP network.
– Status word (optional)
– Live list (optional)
– Input data (bit transactions will always be mapped first)
• Output data
Data from the EtherNet/IP network to the Modbus-TCP network.
– Control word (optional)
– Output data (bit transactions will always be mapped first)
The parameter section data presents a detailed list of all data, including both the I/O mapped
and the not I/O mapped data, available acyclically from the linking device to the EtherNet/IP
network. This list also includes the transaction status and exception code lists, available for error
identification.
Modbus-TCP Network
A detailed list of all Modbus servers and transactions in the configuration.
Linking Device User Manual
scm-1202–181 2.0 en-US