SPECIFICATIONS

Brand Name: NONE

Condition: New

High-concerned chemical: none

Origin: Mainland China

Type: -

Model 1: GC-1201Pro single module

Model 2: Module+12V power supply (power supply is 220 to DC12)

Model 3: Module+USB to 485 (USB to 485 module debugging use)

Model 4: Module+power supply+USB to 485

Model 5: GC-1301Pro (three master one slave many slave module)

Model 6: GC-1401Pro (four master, one slave many slave module)

Two masters one slave

Up to 60 slave stations

Modbus-RTU protocol

Support 8 kinds of function codes

Isolated RS485

One RS232 port

Cache 500 registers

Real-time operating system

Anti-reverse connection of power supply

All kinds of protection are complete

Easy debugging

Support guide rail installation

Application Overview
GC-1201Pro is a professional RS-485 two master and one slave hub There is a large cache in the module, which is suitable for Modbus-RTU protocol and can map the data of multiple Modbus slave stations to the module At the same time, it supports two external Modbus masters to access the data existing in the module at high speed and concurrently

Module can add up to 60 Modbus instructions to send these instructions through SLA port polling to read multiple slave stations At the same time, two external master stations also send the same instruction to read the slave station data in the module

Module support Modbus-RTU protocol 01H, 02H, 03H, 04H05H06H0FH10H and other 8 functional codes Up to 500 slave registers can be stored

Typical application scenarios
Extend a Modbus-RTU slave interface to two
The sensor has only one RS485 interface, but there are two upper computers to collect data
One RS485 is connected to the local display screen and the other is transmitted remotely
Analog signal long-distance following output
One RS485 is connected to touch screen, and the other is connected to PLC

1. The module contains one internal master station and two internal slave stations, in which the memory of the internal master station and the internal slave station is shared

2. Module needs to set up all Modbu-RTU scripts to read and write, and different scripts will be assigned different storage addresses

3. The internal master station sends a set instruction to poll and read and write the data of a plurality of external slave stations

4. Two external master stations read the data of slave stations according to the set instructions Instructions are equivalent to keys. Different instructions are different keys. Different keys can open different cabinets. The same different instructions can read different data

6. The three communication ports of the module are completely independent and can process data independently and concurrently at high speed

7. The module supports function codes such as 01H02H03H04H05H06H0FH10H (the configuration software shows decimal)

8. The internal master station has an error handling mechanism. When errors such as abnormal reading timeout check bit and abnormal frame length occur, the module will carry out some processing according to the settings

Product parameters
Module parameters:
Model: GC-1201Pro (proxy type two master and one slave hub)
Operating voltage: DC9-30V
Operating current: ≤ 100mA
Function overview: 1-way Modbus-RTU slave station interface is extended to 2-way Modbus-RTU interface
Function code: 01H 02H 03H 04H 05H 06H OFH 10H (hexadecimal)
Number of slave stations: < = 60
Cache size: Up to 500 Modbus registers (1000 bytes)
Interfaces: 1 RS232 Interface + 3 RS485 Interfaces
Product size: Length, width and height 123x71x35mm (including both ends)
Product weight: 120g (net weight) 160g (gross weight including accessories and boxes)
Use environment:-40°C to 85°C, relative humidity 5%-95%

Communication parameters
Communication type: Isolated RS-485 (isolation voltage 2500V)
Communication Protocol: Modbus RTU (Master + Slave)
Communication distance: 1200 meters
Baud rate: 1200-115200bps, default 9600 (8, n, 1)
Others: Stop bit can be set, check bit can be set
Protection level: 600W lightning surge protection ± 15KV ESD protection per line of RS-485 interface