Yokogawa Removable Chassis DX1000N - Manual (Page 65)

1-57
IM 04L41B01-17E
Using the Ethernet Interface
1
2
3
4
5
6
App
Index
• Unit
Select Auto if the unit number of the destination server is not required; Otherwise,
select Fixed. If you select Fixed, the unit number item is displayed.
• No.
Enter a fixed unit number in the range of 0 to 255.
Setting the transmitted commands
• Client command number
Select 1 to 16 for the transmitted command numbers to be configured.
• Command type
Set the command type to Off, R, R-M, W, W-M, or E-M. If you select a command type
other than Off, the client channel, server number, register, and data type items are
displayed.
R:
Read to the external input channel (16-bit signed integer type) from the
server.
R-M: Read to the communication input data (32-bit floating point type) from the
server.
W: Write the measurement channel (16-bit signed integer type) to the server.
W-M: Write the measurement channel (32-bit signed integer type) to the server.
E-M: Read to the communication input data (32-bit floating point type) from the
server/write the custom display value to the server (release numbers 4 and
later).
R can be selected on DX2000s with the external input channel (/MC1 option) installed.
R-M, W-M, and E-M can be selected on models with the computation function (/M1 or /PM1
option) installed.
• First/Last (client channels)
Enter the first and last channel numbers of input/output. The range of channels that
you can enter varies depending on the command type as follows:
R: 201 to 440, R-M: C01 to C60, W: 1 to 48, W-M: 101 to 160, E-M: C01 to C60
Only specify one communication input data item in the E-M command. An error will
occur if you specify multiple items (e.g., [C01]-[C03]).
• Server (server number)
Select the server number from 1 to 16.
• Regi. (registers on the server)
Set the register number of the server.
For an input register, select in the range of 30001 to 39999 and 300001 to 365536.
For a hold register, select in the range of 40001 to 49999 and 400001 to 465536.
The register numbers you can specify vary depending on the command type. See
section 6.3.
Specifying the Register Number
Specify the register number on the DX by using the “reference number” (such as the
number 40001 written above). For example on the Yokogawa UT351 Digital Indicating
Controller, the corresponding D-register numbers and reference numbers are listed;
use the reference number.
D-Reg. No. Ref. No.
D0001 40001
For a server device that calls the register using a “relative number,” add 30001,
300001, 40001, 400001 or a similar number to obtain a reference number.
Register Type Relative Number Reference Number Expression
Hold register 1004 41005 1004 + 40001
14567 414568 14567 + 400001
Input register 0000 30001 0000 + 30001
1.10 Using the Modbus Client Function