Name: GHW‑12Z ENI Multi‑Function Industrial Control Module, DIN‑Rail Mount Automation Controller with Analog / Digital I/O, RS485 & Ethernet Modbus Communication - MASSIVE
Brand: Other

Description

GHW‑12Z ENI Multi‑Function Industrial Control Module, DIN‑Rail Mount Automation Controller with Analog / Digital I/O, RS485 & Ethernet Modbus Communication

Product Application

GHW‑12Z is a compact multifunction industrial control module manufactured by ENI, widely deployed in discrete manufacturing, packaging machinery, material handling and general factory automation projects. It integrates digital I/O, analog signal acquisition and built‑in Modbus communication function. It collects field switch status, 4‑20mA analog measurement signals and outputs relay / transistor drive signals to solenoid valves, contactors, indicators and small actuators. Via RS485 or Ethernet Modbus protocol, it exchanges real‑time I/O data with upper‑level PLC, SCADA and HMI systems. This module is commonly used for small‑skid local control, remote I/O expansion and legacy automation system retrofit spare parts.

GHW-12Z

Product Specifications

Part Number: GHW‑12Z
Brand: ENI
Product Type: Compact Industrial I/O Controller Module
Mounting: Standard DIN‑rail mounting
Communication: RS485 (Modbus RTU), Ethernet (Modbus TCP)
Signal Support: Digital Input, Digital Output, 4‑20mA Analog Input
Load Capacity: Relay output max 5A resistive load
Protection Grade: IP65 for module enclosure
Status Indication: LED for power, network, I/O channel status
Certification: CE, UL, RoHS
Product Status: Discontinued, available as surplus / replacement spare part

Core Technical Parameters

Power Supply: 24 VDC ±10%
Power Consumption: Approx. 10 W
Analog Input Range: 4–20 mA
Digital Output: Relay contact output
Communication Baud Rate (RS485): Up to 115200 bps
Operating Temperature: -20 ℃ ~ +60 ℃
Storage Temperature: -40 ℃ ~ +85 ℃
Relative Humidity: 5%–95%, non‑condensing
Dimension: 120 × 80 × 40 mm
Weight: Approx. 0.8 kg
Diagnostics: Power monitoring, communication timeout alarm, channel fault indication

Recommended Matching Models (8 Models)

Supporting hardware for complete GHW‑12Z automation setup:

24VDC Industrial DIN‑Rail Power Supply
Shielded RS485 Twisted‑Pair Communication Cable
Industrial Ethernet Switch for Modbus TCP
4‑20mA Field Pressure / Flow Transmitter
Solenoid Valve for Relay Output Control
HMI Touch Panel
PLC Modbus Master Controller
Signal Surge Protector for field I/O wiring

Product Features

✅ All‑in‑one I/O Controller Design Integrates DI, DO and analog input on one compact DIN‑rail module, saves cabinet space for small local control skids.

✅ Dual Modbus Communication Options Supports both RS485 Modbus RTU and Ethernet Modbus TCP, flexible to connect with different host controllers and SCADA systems.

✅ High‑Current Relay Output Relay contact rating up to 5A, can directly drive solenoid valves, small contactors and on‑site indicator lamps without adding intermediate relay.

✅ IP65 Compact Enclosure Robust sealed housing, suitable for installation inside machine local junction box with moderate dust and water splash risk.

✅ Simple DIN‑Rail Installation Quick clip‑on DIN rail mounting, convenient for cabinet layout and fast replacement.

✅ Rich LED Status Indication Clear LED lights for power supply, network communication and each I/O channel, maintenance staff can quickly judge working status on site.

✅ Legacy System Spare Support Although discontinued, it is a common spare part for old automation equipment maintenance and replacement.

Installation Guidelines

Mount GHW‑12Z firmly onto 35mm standard DIN rail inside control cabinet or local junction box.
Wire 24VDC power supply to the power terminal, confirm positive and negative polarity correctly connected.
Terminate field digital input contact, 4‑20mA analog transmitter and output load wiring to corresponding I/O terminals.
Connect or Ethernet communication cable to host PLC / SCADA. For multi‑drop bus, install terminal resistor at bus ends.
Separate I/O signal cables from high‑power motor cables to avoid electromagnetic interference.
Power on the module, verify power LED steady on, check communication LED blinking normally.
Configure Modbus address, baud rate and I/O register mapping on host controller.
Test each DI/DO and analog reading one by one, verify communication data exchange before formal operation.

Maintenance Instructions

Daily Maintenance Check module power and communication LED status. Monitor Modbus communication fault alarm in HMI. Inspect wiring terminals for looseness.

Periodic Maintenance Every 6–12 months: Tighten I/O and communication terminals. Inspect enclosure sealing and dust accumulation. Check relay contact burn condition for frequently switched output channels.

Fault Maintenance

No communication: Check 24V power supply, communication cable, Modbus station address and baud rate consistency.
Relay output failure: Check whether contact is burned out by overload current, replace module or add external relay.
Abnormal analog reading: Check field transmitter power supply, 4‑20mA loop continuity and terminal corrosion.
ESD protection required during module replacement. Do not open the sealed enclosure.

Long‑Term Operation Tips Avoid relay output long‑term overload operation. Install surge protection for field I/O wiring. Prevent conductive dust and water from entering the module junction box.