Model 922-MES
– User Manual
Focal Technologies Corporation
Page 9-2
A Moog Inc. Company
Document No. 922-0662-00, Rev 1.0
9.1 Modbus TCP/IP
The Modbus TCP protocol is used to provide diagnostics and user control messages via a TCP/IP connection
to the 922-MES. Local card status and control registers are accessible via Modbus TCP/IP from the topside or
other subsea equipment over any Ethernet port.
Diagnostic information available is shown in Table 9-1
. The Modbus TCP register map is provided in the “MES
Diagnostics Protocol Manual
” document 922-0673-02.
9.2 Telnet Interface
The 922-MES card implements a Telnet server on port 23. The server can be accessed from a PC-based Telnet
client such as Microsoft Telnet Client
TM
or Tera Term by entering the card’s IP address. Once a connection has
been established, the Telnet interface displays a home screen containing a list of the available commands and
also detailed help on using each command.
Typically the Telnet interface is used for convenient configuration of the card. The commands available in the
Telnet interface are shown in the figure below. Detailed help for each command is available from the Telnet
menu by sending the “
help
” command. A description of all commands is provided in document 922-0673-02.
Figure 9-1: Telnet Interface Commands
