FOB Price:Get Latest Price
Min.Order Quantity:1 Piece/Pieces
Supply Ability:20000 Piece/Pieces per Year
Port:Shenyang/China
Payment Terms:T/T
Packaging & Delivery
| Packaging Details: |
cartons |
| Delivery Detail: |
within 1 day to 1 month according to the order amount |
Specifications
modbus rtu
DIN Rail Mounting
supports TTL level, RS485 and RS232
Communication Protocol Converter
Coverter HART to modbus rtu
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1. System Overview
NCS-MH105 converter is a newly R&D converter between MODBUS-RTU protocol and HART protocol. As MODBUS host, NCS-MH105 converter communicates with the device with MODBUS-RTU communication function via RS485 interface, and it is able to convert the data in the device to HART device variable output, supporting 4~20mA current output.
As a HART device, NCS-MH105 converter can get through HART system with HART modem and PC. It is able to configure parameters of NCS-MH105 converter via HART configuration software, shown as Figure 2.
2 Device Performance Index
NCS-MH105 converter has powerful processing capacity, and the hardware parameters are shown as following:
|
Parameter
|
Detail
|
|
Bus signal
|
4~20mA output with HART protocol,
|
|
Bus power supply
|
11.9~45V
|
|
Operating temperature
|
-40 ~85°C
|
|
Humidity range
|
5% ~ 95%,non-dew
|
|
Mechanism size
|
96mm × 56mm(can be customized)
|
|
CPU
|
M430F149
|
|
FLASH
|
60K
|
|
RAM
|
2K
|
|
EEPROM
|
2K
|
NCS-MH105 converter and MODBUS device communicate with each other via standard MODBUS-RTU protocol. NCS-MH105 converter is used as master station, and MODBUS device is used as slave station. The default parameters are shown as following:
|
Parameter
|
Default value
|
|
Address
|
1
|
|
Baud rate
|
9600
|
|
Data bit
|
8
|
|
Stop bit
|
1
|
|
CRCcalibration
|
low byte ahead
|
The function codes supported by NCS-MH105 converter shown as following:
|
Function code
|
Function
|
|
1
|
read loop status
|
|
2
|
read discrete input status
|
|
3
|
read keeping register value
|
|
4
|
read input register value
|
|
6
|
write loop
|
|
16
|
write multiple register values
|