24 Channel DC Current Monitoring Module RS485 Modbus Relay Alarm Controller
Product No.: ZH-42246C
24-channel independent synchronous current acquisition
Supports Modbus-RTU protocol
Automatic abnormal current cutoff protection
Standard RS485 communication interface
24 Channel DC Current Monitoring Module RS485 Modbus Relay Alarm Controller
The 24 Channel DC Current Monitoring Module is designed for real-time multi-channel current acquisition, relay alarm control, and abnormal current protection. Featuring RS485 communication and Modbus RTU protocol, it is widely used in industrial automation, aging test systems, battery testing, and DC power monitoring applications.
Key Features
1.24-channel independent synchronous current acquisition
2.24-bit high-precision AD sampling technology
3.Full-channel data refresh within 100ms
4.Built-in relay control for each current detection loop
5.Automatic abnormal current cutoff protection
6.Supports manual relay ON/OFF control via commands
7.Four configurable alarm modes:
Upper limit alarm
Lower limit alarm
Upper & lower limit alarm
Window/region alarm
8.Real-time alarm recording function
9.24-channel LED alarm status indicators
10.Standard RS485 communication interface
11.Supports Modbus-RTU protocol
12.Adjustable baud rate up to 115200bps
13.Plug-in terminals for easy wiring and maintenance
14.Supports screw mounting and DIN rail installation
Product Model
ZH-42246C-14F4:24-Channel DC Current Acquisition Alarm Control Module
Technical Specifications
Parameter
Specification
Accuracy
0.2% FS
Current Ranges
100mA/300mA/500mA/1A/2A/3A DC
Sampling Resolution
24-bit AD
Data Refresh Rate
100ms
Isolation Voltage
>2500V DC
Power Supply
+24V DC
Power Consumption
<10W
Communication Interface
RS485
Communication Protocol
Modbus-RTU
Baud Rate
4800 / 9600 / 19200 / 38400 / 57600 / 115200bps
Default Baud Rate
9600bps
Data Format
8 Data Bits, 1 Stop Bit, Odd/Even/None Parity
Relay Output
Normally Open (NO)
Relay Contact Capacity
3A/250VAC, 3A/30VDC
Alarm Modes
Upper / Lower / Window / Upper & Lower Limit
Alarm Hysteresis
1%
Operating Temperature
20°C ~ +60°C
Installation Method
DIN Rail or Screw Mounting
Channels
24 Channels
Applications
1.Electrical equipment aging test systems
2.Industrial automation control
3.DC power monitoring systems
4.Battery testing equipment
5.Production line monitoring
6.Intelligent power management
7.Equipment fault protection systems
8.Industrial IoT monitoring solutions
Advantages
1.Independent 24-bit AD sampling for each channel
2.High stability and anti-interference performance
3.Fast response for real-time monitoring systems
4.Easy integration with industrial control equipment
5.Supports custom current ranges and OEM solutions
FAQ
What protocol does this module support?
This module supports Modbus RTU communication via RS485 interface.
Can the relay outputs be controlled remotely?
Yes, each relay can be manually controlled through communication commands.
What applications is this module suitable for?
It is widely used in aging test systems, industrial automation, battery testing, and DC power monitoring.
Does the module support DIN rail mounting?
Yes, it supports both DIN rail and screw mounting installation.
