Owner manual

2-1
IM 04L41B01-17E
Using the Serial Interface
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App
Index
2.1 DX Features
Serial communication can be performed using RS-232 or RS-422/485. Explains the serial
communication functions.
Modbus Master
• The DX can connect to a Modbus slave device and read or write to the internal
register. The read data can be used as communication input data of the computation
function
*
on a computation channel. The data can also be handled on the external
input channel.
**
The data that can be written to the internal register is measured data
and computed data.
* /M1 or /PM1 option
** DX2000 with /MC1 option
• For a description of the settings required to use this function, see section 2.4. For
details on the Modbus function codes that the DX supports, see section 6.3.
• For the setting procedure, see sections 2.4, 2.6, and 2.7.
Modbus slave device
DX (master)
Serial communication
MW100
DX
Chapter 2 Using the Serial Interface