PID Control Smart DDC Direct Digital Controller , RS485 Network control

PID Control Smart DDC Direct Digital Controller , RS485 Network control

Quick Detail:

24VAC±10 %

Network Control(RS485,Modbus Protocol)

PID Control

Description:

HL/1-4884 is an intellectual building auto-control system (BAS) controller, which has 8 analog inputs, 8 digita

l inputs, as well as 4 analog outputs and 4 digital outputs. It has both PID automatic adjustment and 

enforcement modes, to realize field control and remote network control.Control objects, input and output 

signal type are optional.

Applications:

Network Control(RS485,Modbus Protocol)
PID Control
Programmable(7 days 4 periods)
Enforced Output
Alarm
I/O Correlative control
I/O Type Setting

Specifications:

Power:24VAC±10 %,50Hz/60Hz,

Consumption (max.): 5W

Analog Input(AI):  

Input Voltage: 0~5V;1~5V;

Input Current: 0-20mA;4~20mA

Sensor Input: Temperature sensor(3K/10K NTC)

Digital signal Input(DI): modulating input(NO/NC Optional)

Analog signal Output:

Voltage Output: Output current(max) 5mA,

Accuracy±0.04V

0~10V2~10V10~0V10~2V1~5V0~5V

Current Output: on load resistance(max) 600ohm,

Accuracy±0.08mA

0~20mA4~20mA20~0mA20~4mA

Digital Output:

Changeable contact(Manually enforced optional),

contact capacity AC250V 3A(Ohmic load).

Network Setting   Network Address: 31(max)

Basic function

• Network control (RS485/Modbus,Tcp/Modbus protocol)
• Network expansion can add ambient devices by local bus.
• Input and output modes setting
• Configurable fee parameter
• programmable(2  7days 2 periods and 2  7 days 6 periods)
• PID control
• Configurable logical operation
• Input,intermediate variable,output relevant control
• Switching volume alarm set
• Easy and simple configuration software, Items can be copy breezily