16 Channel Digital Input Module 16DI Industrial Remote I/O Module with Modbus RTU TCP
Product No.: ZH-YX1600
16 High-Speed Digital Inputs
Supports Dry Contact, PNP and NPN Signals
RS485 and Ethernet Communication
Industrial Optical Isolation Protection
16 Channel Digital Input Module Modbus RTU TCP Remote I/O
Product Details
Industrial 16 Channel Digital Input Module
The ZH-YX1600 is a professional industrial digital input acquisition module designed for factory automation, equipment monitoring and remote I/O applications. The module provides 16 optically isolated digital inputs and supports Modbus RTU and Modbus TCP communication protocols.
Built around a 32-bit ARM industrial processor, the module delivers reliable and stable operation in industrial control systems, PLC networks and SCADA monitoring platforms.
Main Features
① 16 High-Speed Digital Inputs
Provides 16 optically isolated digital input channels for status monitoring, signal acquisition and industrial automation applications. Supports up to 20kHz input frequency.
② Supports Dry Contact, PNP and NPN Signals
Compatible with dry contacts, switches, push buttons, sensors, PNP outputs and NPN outputs, offering flexible integration into industrial systems.
③ RS485 and Ethernet Communication
Available with RS485 or Ethernet interfaces and supports Modbus RTU and Modbus TCP protocols for easy PLC and SCADA integration.
④ Industrial Optical Isolation Protection
Built with 3750Vrms input isolation and 1500V communication isolation for superior anti-interference performance in harsh environments.
Function
1.Flexible Input Signal Compatibility
Supports multiple industrial signal types:
Dry Contact Inputs
Push Buttons
Limit Switches
Magnetic Switches
PNP Sensors
NPN Sensors
Open Collector Outputs
Pulse Signals
Ideal for machine status monitoring, alarm systems and industrial process control.
2.High-Speed Signal Acquisition
The module supports:
Input Frequency up to 20kHz
High-Speed Status Detection
Pulse Counting (Custom Version)
Frequency Measurement (Custom Version)
Pulse Width Measurement (Custom Version)
Suitable for advanced automation and industrial monitoring applications.
3.Modbus Communication Integration
Available communication options:
RS485 Modbus RTU
Ethernet Modbus TCP
Compatible with:
Siemens PLC
Schneider PLC
Mitsubishi PLC
Delta PLC
Omron PLC
Allen-Bradley PLC
Ignition SCADA
KingView SCADA
Industrial PCs
Edge Gateways
4.Industrial Isolation Design
The module incorporates:
3750Vrms Input Isolation
1500V Communication Isolation
Optical Isolation Technology
EMC Protection Design
Anti-Interference Circuitry
Ensuring stable performance in electrically noisy industrial environments.
Specification
Parameter
Specification
Digital Inputs
16 Channels
Input Isolation
3750Vrms Optical Isolation
Input Type
Dry Contact / PNP / NPN Signal
Input Voltage
0~30VDC
Low Level Threshold
0~2.5VDC
High Level Threshold
4~30VDC
Input Impedance
3KΩ ±200Ω
Input Frequency
≤20kHz
Communication Interface
RS485 / Ethernet RJ45
Communication Protocol
Modbus RTU / Modbus TCP
Communication Isolation
1500V
Communication Speed
9600~115200bps
RS485 Distance
Up to 1200m
Power Supply
DC9~30V
Power Consumption
<2W
Operating Temperature
-40°C to +60°C
Mounting Method
DIN Rail / Screw Mount
Product Model
| Model | Input Channels | Communication | Description |
|---|---|---|---|
| ZH-YX1600-14N | 16DI | RS485 | Standard Modbus RTU Version |
| ZH-YX1600-34N | 16DI | Ethernet | Modbus TCP Version |
| ZH-YX1600-1A4N | 16DI | Dual RS485 | Custom Version |
1.PLC Digital Input Expansion
Expand digital input points for industrial PLC systems.
2.Industrial Equipment Monitoring
Monitor machine status, limit switches and equipment alarms.
3.Building Automation
Access control, lighting monitoring and HVAC status acquisition.
4.Smart Factory Systems
Production line signal collection and process monitoring.
5.Water Treatment Systems
Pump status, valve position and remote monitoring.
6.Energy Management Systems
Equipment operating status and remote signal acquisition.
FAQ
Q1: How many digital inputs does the module provide?
The module provides 16 optically isolated digital input channels.
Q2: Does it support both PNP and NPN sensors?
Yes. The module supports dry contacts, PNP inputs and NPN inputs.
Q3: What communication protocols are supported?
The module supports Modbus RTU and Modbus TCP protocols.
Q4: What is the maximum input frequency?
The maximum supported input frequency is 20kHz.
Q5: Can it work without a PLC?
Yes. The module can communicate directly with other compatible I/O modules for linkage control without requiring a PLC.
