Summary Table Setting Values; Modbus Communication System Integration; Basic Features Of Modbus-Rtu Control; Modbus Memory Map - S&P CTB ECOWATT PLUS Manual

7.3. SUMMARY TABLE SETTING VALUES

Registro
T1
T2
T3
Period T1
Period T2
Period T3
Set T1
Set T2
Set T3
Date start
Hour start
Date end
Hour end
Set Holidays

8. MODBUS COMMUNICATION SYSTEM INTEGRATION

8.1. BASIC FEATURES OF MODBUS-RTU CONTROL

Addressing
Diffusion
Transmissions speed
Parity
Mode
Electrical interface
Connector type
MODBUS message
Direction Function
8 bits 8 bits
Format for each byte in RTU mode is:
• System codes: 8–bit binary
• Bits per Byte: 1 bit to START (start)
8 bits for data, the most signifi cant bit is sent fi rst
1 bit for parity (Even parity is required)
1 bit for STOP (end)

8.2. MODBUS MEMORY MAP

Holding registers
N°REG. Register
0 TipoMotor
1 ModoFun
Min. Max. Description
OFF 23:59 Start time period frame
0min 480min Period frame duration
OFF 100% Percentage over set point
00:00 23:59 Starting date holidays period
00:00 23:59 Starting hour holidays period
00:00 23:59 Ending date holidays period
00:00 23:59 Ending hours holidays period
OFF 100% Percentage over the set point for holidays period
Slave: confi gurable address from 1 to 247
Yes
9600 (19200 is recommended too)
PAR/EVEN
RTU
RS485 2W-wired or RS232
RJ 45
Dates CRC verifi cation
N x 8bits 16 bits
Min. Max.
0 1
0=PI_Presión
1=PI_Caudal
2=Proporcional
0 7
4=PI_Presión+RTC
5=PI_Caudal+RTC
6=Proporcional+RTC
7=Max-Min+RTC
Master: able to adress slaves with address from 1 to 247
Description Default
0=AC
1
1=DC
3=Max-Min
0
Comments
Motor type
Operation mode
59
EN