Yokogawa µR20000 - Manual (Page 10)

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IM 04P01B01-17E
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Index
Contents
Functional Enhancement of the Recorder ........................................................................................ii
How to Use This Manual .................................................................................................................. iii
Names of Parts and Basic Key Operations.......................................................................................v
Chapter 1 Overview of the Communication Functions
1.1 Communication Functions Using the Ethernet Interface (/C7 Option) ................................. 1-1
Functional Construction ....................................................................................................... 1-1
Setting/Measurement Server ............................................................................................... 1-1
Maintenance/Test Server ..................................................................................................... 1-2
Instrument Information Server ............................................................................................. 1-2
Other Functions ................................................................................................................... 1-3
1.2 Communication Functions Using the RS-422A/485 Communication Interface (/C3 Option) 1-4
Functional Construction ....................................................................................................... 1-4
Setting/Measurement Server ............................................................................................... 1-4
Modbus Slave ...................................................................................................................... 1-4
Chapter 2 Using the Ethernet Interface (/C7 Option)
2.1 Ethernet Interface Specifications ......................................................................................... 2-1
Basic Specifications ............................................................................................................. 2-1
The Maximum Number of Simultaneous Connections and the Number of Simultaneous
Use ...................................................................................................................................... 2-1
2.2 Connecting the Ethernet Interface ....................................................................................... 2-2
When Connecting Only the Recorder and a PC .................................................................. 2-2
When Connecting to a Preexisting Network ........................................................................ 2-2
2.3 Configuring the Ethernet Interface ....................................................................................... 2-3
2.4 Checking the Connection Status ......................................................................................... 2-7
2.5 Registering Users ................................................................................................................ 2-8
2.6 Setting the Communication Timeout and Keepalive ...........................................................2-11
Chapter 3 Using the RS-422A/485 Communication Interface (/C3 Option)
3.1 RS-422A/485 Communication Interface Specifications ....................................................... 3-1
3.2 Terminal Arrangement and Signal Names and the Connection Procedure of the RS-422A/485
Communication Interface ..................................................................................................... 3-2
Terminal Arrangement and Signal Names ........................................................................... 3-2
Connection Procedure ......................................................................................................... 3-2
Connection Example with a Host Computer ........................................................................ 3-3
3.3 The Bit Structure of One Character and the Operation of the Receive Buffer ..................... 3-7
The Bit Structure of One Character ..................................................................................... 3-7
Receive Buffer and Received Data ...................................................................................... 3-7
3.4 Modbus Slave Protocol Specifications ................................................................................. 3-8
Registers .............................................................................................................................. 3-9
Modbus Error Response .................................................................................................... 3-13
3.5 Setting the Serial Interface ................................................................................................ 3-14