Communication and configuration Modbus / Modbus communication et configuration / Modbus comunicación y configuración
Frame Modbus RTU
Address
Function
1 byte
1 byte
0 up to 252 byte (s)
Frame Modbus ASCII
Start
Address
Function
1 Char
2 Char
2 Char
Modbus functions supported / Fonctions Modbus supportées
Code (Hexa)
Function
03
Read multiple registers (R)
Write single register (W)
06
Write multiple registers (W)
10
Read device identification (R)
2B
Maître/Master
IEC
Standard
%MW 16 4001 + 16
%MW 17 4001 + 17
%MW 18 4001 + 18
%MW 19 4001 + 19
Entrées
%MW 20 4001 + 20
Inputs
%MW 21 4001 + 21
%MW 22 4001 + 22
%MW 23 4001 + 23
%MW 24 4001 + 24
%MW 25 4001 + 25
%MW 26 4001 + 26
Sorties
%MW 27 4001 + 27
Outputs
%MW 28 4001 + 28
%MW 29 4001 + 29
%MW 30 4001 + 30
%MW 31 4001 + 31
%MW 32 4001 + 32
Seconds
Horloge
%MW 33 4001 + 33
Hours
Clock
%MW 34 4001 + 34
%MW 35 4001 + 35
Century
%MW 36 4001 + 36
%MW 37 4001 + 37
%MW 38 4001 + 38
%MW 39 4001 + 39
Horloge
%MW 40 4001 + 40
Clock
%MW 41 4001 + 41
%MW 42 4001 + 42
%MW 43 4001 + 43
Alarm code
%MW 48 4001 + 48
1=Time out Default
Data
CRC
2 bytes
CRC low / CRC Hi
Data
LRC
0 up to 2 x 252 char
2 Char
2 Char
CR LF
Data type
N x 16 bits (Word)
16 bits (Word)
N x 16 bits (Word)
ASCII string/Chaine ASCII
Millenium 3 FBD
Word
J1XT1
J2XT1
J3XT1
J4XT1
J5XT1
J6XT1
J7XT1
J8XT1
O1XT1
O2XT1
O3XT1
Lecture
O4XT1
Read
O5XT1
O6XT1
O7XT1
O8XT1
Byte
Byte
Week day
Minutes
Month
Day/month
year
Byte
Byte
Seconds
Minutes
Hours
Week day
Day/month
Month
Year
Century
7
3
2
1 0
1 =Run
0 =Stop
1
=Monitoring
1 =Alarm
1 =Error
End
Bits
15 14 13 12 11 10
L/E
R/W
Base inputs
IG IF IE ID IC IB IA
Extension inputs
Base ouputs
Extension outputs
Byte
Seconds
L/E
Hours
Horloge Clock
R/W
Month
Century
Byte
L/E
R/W
L/R
Alarm code
1=Time out Default
4/4
Millenium 3 Ladder
9
8
7
6
5
4
3
2
I9
I8
I7
I6
I5
I4
I3
I2
IY IV IU
IT
IS
IR IQ
QA Q9 Q8 Q7 Q6 Q5 Q4 Q3 Q2 Q1
QG QF QE QD QC QB
Byte
Week day
Minutes
Day/month
year
Byte
Seconds
Minutes
Hours
Week day
Day/month
Month
Year
Century
7
3
2
1
NTR 789 / 03 - 2007
1
0
I1
IP
Lecture
Read
L/E
R/W
L/E
R/W
0
L/R
1=Run
0=Stop
1=Monitoring
1=Alarm
1=Error
