Owner manual

2-2
IM 04L41B01-17E
Modbus Slave
• A Modbus master device can carry out the following operations on the DX that is
operating as a Modbus slave device.
• Load data from measurement, computed,
*
and external input channels
**
(using the
input register)
• Load communication input data
*
(using the hold register)
• Write communication input data
*
(using the hold register)
• Write to external input channels
*
(using the hold register)
• Start and stop recording, write messages, and perform other similar operations
(using the hold register; models with release number 3 or later)
• Load the recording start/stop condition, message strings, and other types of data
(using the hold register; models with release number 3 or later)
* /M1 and /PM1 options
** DX2000 with /MC1 option
• For details on the settings required to use this function and the Modbus function codes
that the DX supports, see section 6.3.
• For the setting procedure, see sections 2.4, 2.5, and 2.7.
Modbus master device
DX (slave)
Serial communication
DX
MW100
Setting/Measurement Function
• This function can be used to set almost all of the settings that can be configured using
the front panel keys. For details, see section 1.1.
• For a description of the settings required to use this function, see section 2.4. For
information about how to use the function, see section 2.8.
PROFIBUS-DP (/CP1 option; release number 3 or later)
As a PROFIBUS-DP slave device, the DX can:
• Output measured values of measurement channels.
• Output a portion of the computed values of computation channels.
• Enter data to a portion of the communication input data.
For operating instructions, see the PROFIBUS-DP Communication Interface User’s
Manual (IM04L41B01-19E).
2.1 DX Features