Instruction Manual

6. Modbus ASCII
272
Modbus
6.6 Control Information Direct Writing (Queries Using Code 06)
6.6.1 Writing to Registers
(1) Function
These queries change (write) data in registers of a slave.
In case of broadcast, data of registers of the same address of all slaves is changed.
[Refer to the details of device controller register 1 in 4.3.2 (5).]
[Refer to the details of device controller register 2 in 4.3.2 (6).]
[Refer to the details of the position number specification register and position movement
specification register in 4.3.2 (7).]
(2) Start address list
Address Symbol Name Byte
0D00 DRG1 Device control register 1 2
0D01 DRG2 Device control register 2 2
0D03 POSR Position number specification register 2
9800 POSR Position movement specification register 2
The registers above are control command registers. The bits of these registers are assigned to input
ports by PIO patterns when “PIO/Modbus Switch Status (PMSS) [refer to 6.4.13] is set to “disable
Modbus commands (enable PIO commands). These registers can be rewritten when the Modbus
commands are enabled (PIO commands are disabled).
*) Please refer to
“6.2 ASCII Code Table.”