HJ2000 Series Hardware Manual V1.1
Hardware parameters
RS485 Parameters
Port | 1 |
Baud rate | 400K |
Data bits | 8 Bits |
Stop bit | 1 Bits |
Check | None |
Buffer | 4MBytes |
Interface | Terminal(LTX-LRX) |
Digital input
Number of channels | Determined by model |
Input type | Optical isolation PNP/NPN |
Rated voltage | 24V |
Access method | Single line |
Response time | 1 ms |
Protect | Overcurrent and overvoltage |
Digital output
Number of channels | Determined by model |
Output type | PMOS tube output |
Rated voltage | 25V |
输出电流 | 0.5A |
Response time | 1 ms |
Protect | Overcurrent and overvoltage |
Analog input
Number of channels | Determined by model |
Input type | 0~20mA/0~5V/0~10V(Optional) |
Precision | 0.1% |
Sampling time | 1 ms |
Input resistance | 50R(current)/1M ohm(voltage) |
Protect | Overcurrent |
Analog output
Number of channels | Determined by model |
Output type | 0~20mA/0~5V/0~10V(Optional) |
Precision | 0.1% |
Sampling time | 1 ms |
Output impedance | 50R(current)/100R(voltage) |
Protect | Overcurrent |
Address encoding
Address bits | 6 |
Address sequence | 1、2、3、4、5、6 |
Terminal Wiring Diagram
HJ2003 terminal diagram

HJ2006 terminal diagram

HJ2007 terminal diagram

Wiring Diagram
Hardware connection of IO expansion module
LTX/LRX are respectively connected to the LTX/LRX terminals of HJ52XX series devices

PNP output wiring method
M1, DQ0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 24V are a group, the common terminal M1 is connected to 0V, and the 24V power terminal is connected to +24V of the power supply.

Digital input wiring mode
CM1, DI/0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7 are divided into one group, CM2, DI/1.0, 1.1, 1.2, 1.3, 1.4, 1.5,
1.6 and 1.7 are divided into a group, the common terminal CMx (x value is 1, 2, 3, 4) is connected to 0V or 24V, if the common terminal is connected to 0V, the output type connected to the input DI point is PNP mode, if the common terminal is connected to + 24V, the output type connected to the input DI point is NPN mode.
The following figure shows how to connect the PNP output type:

The figure below is how to connect the NPN output type
