START
115200, baud rate, from 1200,2400 ~ 57600,115200
N, N=No Parity, E=EVEN, O=ODD
1, 1=one STOP bit, 2=two STOP bits
100, TimeOut for Modbus command, format=Dec, valid=[0 ~ 255], unit=0.01 sec, 0.01x100=1 sec, max=2.55 sec
0, delay in the end of Modbus command, format=Dec, valid=[0 ~ 255], unit=0.01 sec, max=2.55 sec
0, InTxPdoMax/2, format=Dec, valid=[0 ~ 128], default=0=Auto
0, OutRxPdoMax/2, format=Dec, valid=[0 ~ 128], default=0=Auto
0 0 0 0 0 0 0, 7 Reserved, format=Hex, default=0
4, four commands(00-03), max=300, format=Dec
02 06 00 00 00 00, 02, 00, 08, D/A_0=OutRxPdo[02]+state change update, (00)
02 06 00 01 00 00, 03, 00, 08, D/A_1=OutRxPdo[03]+state change update, (01)
02 06 00 02 00 00, 04, 00, 08, D/A_2=OutRxPdo[04]+state change update, (02)
02 06 00 03 00 00, 05, 00, 08, D/A_3=OutRxPdo[05]+state change update, (03)
STOP
==========================================================================
OutRxPdo[00]=2610CTL0, OutRxPdo[01]=2610CTL1, OutRxPdo[02..FF]=Out[02..FF] 
InTxPdo[00]=2610SYS0,  InTxPdo[01]=2610SYS1,  InTxPdo[02..FF]=In[02..FF] 
==========================================================================
D/A_0/1/2/3 will update when OutRxPdo[02/03/04/05] change 