8-7
Chapter 8. Modbus Communication Function
Command types
Command (send message) types supported by this device are as follows.
Command type Description Conformance class
ASCII RTU
Read multiple data records 03 (2 bytes) 03H (1 byte) 0
Write multiple data records 10 (2 bytes) 10H (1 byte) 0
Write 1 data record 06 (2 bytes) 06H (1 byte) 1*
* This device does not support class 1 commands other than the writing of one data
record.
Number of data records
The number of data records that can be read or written using a one-frame message
is shown below.
Command type
(function code)
Description
ASCII RTU
Read command 1 to 64 1 to 64
Write command 1 to 64 1 to 64
1 data record write
command
1 1