16.2 Temperature Controller/Servo/Inverter Connection 16-85
16.2.29ALPHA5 (MODBUS RTU)
Communication Setting
Editor
Communication setting
(Underlined setting: default)
Servo Amplifier
Set communication parameters.
Be sure to match the settings to those made under [Communication Setting] of the editor.
(Underlined setting: default)
*1 For communication with V9, select “MODBUS RTU” for the communication protocol selection on the servo amplifier.
*2 The communication parameter (data length) is fixed to 8 bits.
Available Device Memory
The available setting range of device memory varies depending on the model. Be sure to set within the range available for the
model to be used. Use [TYPE] when assigning indirect device memory for macro programs.
* Communication OUT signal is read only.
Item Setting Remarks
Connection Mode
1:1 / 1:n
/ Multi-link2 /
Multi-link2 (Ethernet) /
1:n Multi-link2 (Ethernet)
Signal Level RS-422/485
Baud Rate 9600 / 19200 / 38400
bps
Data Length 8 bits
Stop Bit 1
/ 2 bits
Parity None / Even
/ Odd
Targe t Por t N o. 1
to 31
Parameter Item Setting Example
PA2
Extensional
Function Setting
PA2_72 (No. 72) Station number 1
to 31 1
PA2_73 (No. 73) Baud rate
0: 38400 bps
1: 19200 bps
2: 9600 bps
0
PA2_93 (No. 93) Parity bit / Stop bit selection
0: Even parity, Stop bit 1 bits
1: Odd parity, Stop bit 1 bits
2: Without parity, Stop bit 1 bits
3: Even parity, Stop bit 2 bits
4: Odd parity, Stop bit 2 bits
5: Without parity, Stop bit 2 bits
0
PA2_97 (No. 97)
Communication protocol
selection
*
0: PC Loader protocol
1: MODBUS RTU
1
Device Memory TYPE Remarks
00 (communication CONT / OUT signals) 00H
Double-word
*
01 (monitor) 01H Double-word, read only
02 (sequence monitor) 02H Double-word, read only
03 (various commands) 03H Double-word
04 (parameter) 04H Double-word
05 (immediate value data) 05H Double-word