Yokogawa Button Operated MV2000 - Manual (Page 7)

1-1 M-4662
Overview
of
Communication
Functions
1
2
3
4
5
6
7
App
Index
1.1 Ethernet Interface
This chapter gives an overview of the MV Ethernet communication functions.
Modbus Communications
The MV can connect to a Modbus device and read and write to the device’s internal
registers. See section 1.3 for details.
Setting/Measurement Server
• You can use this feature to set almost all of the settings that can be configured from
the front panel keys. However, you cannot use this feature to turn the power ON/OFF,
register users, set the key lock password, or set the connection destination of the FTP
client function.
• You can use this feature to transmit the following types of data.
• Measured, computed 1 , and external input data 2
• Files in the internal memory or files on an external storage medium
• Setup information and status byte
• Logs of operations errors, communications, etc.
• Alarm summaries and message summaries
• Relay status information
Measured, computed 1 , and external input 2 data can be transmitted to a PC in binary
or ASCII format. Other types of data are transmitted in text format. For a description of
data output formats, see chapter 5.
1 /M1 option.
2 RD-MV2000 with the /MC1 option.
• You can use setting mode commands (see sections 4.4 and 4.5), basic setting mode
commands (see section 4.6), and output commands (see sections 4.7 and 4.8) with
this feature.
• You can use this feature via an Ethernet interface or serial interface (/C2 or /C3
option).
• If you want to use this feature via a serial interface, configure the serial interface
according to Chapter 3.
Maintenance/Test Server
• You can use this feature to transmit connection information, network statistics, and
other Ethernet communication information from the MV.
• You can use maintenance/test commands (see section 4.11) with this feature.
Chapter 1 Overview of Communication Functions