2-18  2. IAI
2.1.4 PCON / ACON / SCON (MODBUS RTU)
Communication Setting
Editor
Communication setting
(Underlined setting: default)
PCON / ACON / SCON
Exclusive software
Set parameters using the exclusive software.
(Underlined setting: default)
Axis number setting switch (ADRS)
After changing the setting, be sure to turn the power off and back on again.
Mode select switch
Select [MANU].
Emergency stop terminal block
When the servo cannot be turned on, check the emergency stop terminal block.
 ACON-C, PCON-C/CF (with built-in cutout relay)
Connect the EMG switch between the S1 terminal and the 24-V terminal.
When the EMG switch is not used, short-circuit them.
Short-circuit the terminals S2 and EMG-, and MPI and MPO, respectively.
 ACON-CY/PL/PO/SE, PCON-CY/PL/PO/SE (with built-in cutout relay)
Connect the EMG switch between the EMG- terminal and the 24-V terminal.
When the EMG switch is not used, short-circuit them.
Short-circuit the MPI terminal and the MPO terminal.
 ACON-CG / PCON-CG (with external cutout relay) 
Install wiring by referring to the specifications sheet of ACON/PCON.
 SCON
Connect the EMG switch between the S1 terminal and the EMG- terminal.
When the EMG switch is not used, short-circuit them.
Short-circuit the S2 terminal and the EMG+ terminal.
Item Setting Remarks
Connection Mode
1:1 / 1:n
 / Multi-link2 / Multi-link2 (Ethernet) / 
1:n Multi-link2 (Ethernet)
Signal Level RS-232C / RS-422/485
Baud Rate 9600 / 19200 / 38400
 / 57600 / 115K bps
Data Length 8 bits
Stop Bit 1 bit
Parity None
Target Port No. 0 to 15 Set the same number as the IAI axis number.
Parameter No. Parameter Name Setting
Parameter 16 SIO baud rate 9600 / 19200 / 38400
 / 115200 bps
ADRS Setting Remarks
0 to F (0 to 15)