Weintek cMT3102X Advanced 10.1″ Resistive Touch HMI

Positionierung: Industrial edge IoT HMI with native CAN bus. Suitable for equipment with CANopen, SAE J1939 and Siemens MPI communication. Fanless design with PCB anti-corrosion coating, part of the cMT X Advanced series.

1. Kern-Hardware-Spezifikationen

Anzeige: 10.1″ WVA wide-view TFT, 1024×600, brightness 350cd/m², contrast ratio 1000:1, 16.7M-Farben, LED backlight service life＞50000 hours

Berühren: 4-wire resistive touchscreen (7H hardness), accuracy ±2%

Hauptcontroller: Quad-core RISC; Erinnerung: 1GB DDR3 RAM / 4GB-Flash, eingebaute RTC

Stromversorgung: DC24V (±20 %), rated 1A, isolated power circuit

Schutz: Front panel IP66 / NEMA4 / UL Type4X (indoor); PCB with anti-corrosion coating

Abmessungen: 271×213×38 mm; Panel cutout 260×202 mm; Panel mount + VESA75 wall mount supported; Weight≈1.2kg

Umfeld: Operating 0~50℃, storage -20~60℃; Humidity 10~90% non-condensing; Max altitude 3000m; Vibration 10~25Hz, 2G

2. Interface Resources (Schlüssel)

Ethernet Ports: LAN1 (10/100/1000M Gigabit), LAN2 (10/100M Fast Ethernet). Isolated dual LAN for separated PLC and upper network

Seriell & CAN-Bus (2× D-Sub9: Con.A / Con.B)

COM1: RS232 4-wire

COM2: RS485 2W/4W

COM3: RS485 2W (MPI 187.5K supported; MPI can only run on either COM2 or COM3, not both simultaneously)

CAN-Bus: CAN 2.0A/B, CANopen, SAE J1939 (widely used in construction machinery and vehicles)

USB: USB-Host 2.0 ×1 (project upload/download via USB flash drive, peripherals); No dedicated USB download port, no SD card slot

Kabellos: Optional M02 WiFi expansion module

Variant: cMT3102X(R), same hardware with built-in RFID reader

3. Software & Kommunikationsfähigkeiten

Programmiersoftware: EasyBuilder Pro (minimum V6.05.02; V2 hardware requires V6.08.01 or newer)

Optional Licenses: EasyAccess2.0 remote access, Weincloud, CODESYS Soft PLC (independent runtime)

Main Protocols: Modbus RTU/TCP, Siemens S7, MPI, CANopen, J1939, EtherNet/IP etc. Supports gateway forwarding, edge data acquisition, web page, database logging

4. Typische Anwendungsszenarien

Baumaschinen, hydraulische Systeme, passenger buses, sanitation trucks, Spritzgießmaschinen, Produktionslinien, Wasseraufbereitung, CAN bus control systems, equipment requiring remote maintenance. Especially suitable for systems connecting Siemens PLC and CAN devices at the same time.

5. Peer Comparison & Ersatzoptionen

cMT3108XH: Gleiche Größe, upgraded resolution 1280×800, identical interfaces, finer display, direct upgrade model

cMT3102X(R): Built-in RFID for card reading and permission management

Alternative nach unten: Legacy cMT2108X2 (no CAN bus, not for CAN projects)

6. Known Limitations & Hinweise zur Fehlerbehebung
7. MPI cannot be enabled on COM2 and COM3 at the same time; only one channel for MPI
8. No SD card slot; project backup only via USB flash drive or Ethernet
9. Resistive Berührung, no multi-touch; more resistant to oil contamination than capacitive touch
10. Lüfterloses Design; avoid mounting adjacent to heat-generating components, ensure cabinet cooling
11. Termination resistor required for CAN wiring; J1939 devices typically use 250K baud rate

Communication Protocol List for cMT3102X (Weintek cMT X Advanced)

Notiz: cMT3102X runs on EasyBuilder Pro with over 400 built-in device drivers. Key protocols, hardware channels and constraints sorted below.

✅ CAN Bus (Native hardware CAN, Kernmerkmal)

KANN 2,0A / CAN 2.0B

CANopen-Master

SAE J1939 (preferred for construction machinery, sanitation vehicles, passenger buses and hydraulic power units)

✅ RS232 / RS485 Serial Ports (COM1/COM2/COM3)

Modbus RTU (Meister/Sklave)

Siemens MPI (187.5K, COM2 or COM3 only, cannot run on both)

Mitsubishi FX serial protocol, serial MC protocol

Omron HostLink

Delta, Innovation, Xinje, Fatek and other domestic PLC serial protocols

Free protocol (custom serial communication)

✅ Dual Ethernet Ports (LAN1 Gigabit, LAN2 Fast Ethernet)

General Industrial Ethernet Protocols

Modbus TCP (Meister/Sklave, gateway forwarding)

OPC UA Client / OPC UA-Server (certified version)

EtherNet/IP (Rockwell Allen‑Bradley supported)

BACnet IP (HVAC building automation)

KNXnet/IP

MQTT (Sparkplug B, cloud connection)

FTP, HTTP, HTTPS, TCP/UDP free protocol

Ethernet Drivers for Major PLCs

Siemens S7-1200/1500/300/400 S7 protocol, S7-200 SMART

Mitsubishi MC Ethernet (Q/R/FX5U/M80)

Omron FINS Ethernet

Delta, Innovation, Xinje, Panasonic, Fuji, Yaskawa and others

CODESYS Ethernet (available with CODESYS Soft PLC license)

✅ IoT Cloud & Database Protocols

MQTT, compatible with AWS IoT, Azure IoT, Weincloud

SQL: MySQL / MariaDB / MS SQL / Azure SQL (direct database access)

EasyAccess 2.0 (Weintek proprietary remote tunnel protocol)

✅ USB-Host

USB barcode scanner, USB printer, USB camera, CDC serial devices

⚠️ Kritische Einschränkungen (Zur Auswahl)

1. MPI only on COM2 OR COM3; simultaneous MPI on both ports is not supported
2. Not native Profinet controller (Profinet gateway function requires extra solution)
3. EtherCAT is only available under optional CODESYS Soft PLC runtime, not built into HMI itself
4. CAN supports only CANopen and J1939 listed above; DeviceNet is not supported

Recommended for: J1939 construction machinery, CANopen hydraulic systems, legacy Siemens MPI PLC, dual isolated LAN + OPC UA/MQTT cloud upload

cMT3102X Siemens MPI Commissioning Checklist (S7-300/400/200)

1. Mandatory Preconditions (Communication fails if not met)
2. Port Restriction: Only COM2 and COM3 (RS485 2W) support MPI; only one can be used for MPI, not both. COM1 (RS232) does not support MPI.
3. Fixed Baud Rate: 187.5Kbps only, 19.2K / 9.6K not supported
4. Softwareversion: V2 hardware requires EBPro ≥ V6.08.01; older hardware minimum V6.05.02. Select exact model cMT3102X / cMT3102X(V2)
5. COM3 Mode Lock: Once COM3 is set to RS485 MPI, COM3 cannot switch to RS232. MPI function is disabled if COM3 is set to RS232.
6. Hardware-Verkabelung (9-pin D-SUB Con.A, female)

1) Pinbelegung (RS485 2W half-duplex)

COM2 / COM3 RS485 2W:

Pin1 = Data(B)

Pin2 = Data+ (A)

Pin5 = GND (signal ground, must connect to PLC pin5)

2) PLC MPI Male Connector

Pin3 = A(+), Pin8 = B(-), Pin5 = GND

3) Wiring Reference

HMI: 1-B, 2-A, 5-GND

SPS: 8-B, 3-A, 5-GND

4) Bus Termination Resistor (MPI is simplified Profibus)

Terminate both ends of bus (HMI + SPS) with 120Ω resistor

Only two end nodes terminated; no termination on middle nodes

Flip the switch to ON on original Siemens MPI connector to activate termination resistor

3. PLC Parameter Setup (Step7 Classic / TIA-Portal)
4. Open hardware configuration → CPU properties → MPI interface
5. Baudrate: 187.5 kbit/s (behoben)
6. Stationsadresse: 1~31, must differ from HMI address
7. Highest station address: 31; keep default bus parameters
8. Download hardware configuration and restart PLC
9. S7-200 Note: Port0 must be MPI mode, not PPI master mode, otherwise MPI communication fails
10. EBPro Project Configuration Step-by-Step
11. System Parameters → Model

Select exact model: cMT3102X / cMT3102X(V2). Wrong model causes communication failure.

2. Add PLC Device & Driver

Device type: Siemens S7-300/400 MPI (MP300)

Schnittstelle: COM2 or COM3 (choose one only)

Communication mode: RS485 2W (half-duplex)

3. Communication Parameters (Match PLC exactly)

Baudrate: 187500

HMI station address: 0 (behoben, do not change)

PLC station address: same as configured in PLC hardware (z.B. PLC=2)

Time-out: default 2000ms, do not set below 1000ms

Highest station address: 31

4. Port Mode Lock (Häufiger Fallstrick)

Enter HMI system menu on power-up:

Set COM2/COM3 to RS485 2W, NOT RS485 4W or RS232

Do not activate both COM2 and COM3 serial communication; MPI occupies one port exclusively

5. Address Format (Avoid Read Failures)

Eingang: ICH

Ausgabe: Q

Erinnerung: M

Data Block DB: DB1.DBW0, DB1.DBD4 (DB block must be created and downloaded to PLC beforehand)

Accessing non-existent DB blocks triggers no response error

5. HMI Local System Setup (Before Download Project)
6. Enter system menu by long-pressing top-left corner on boot; Standardpasswort: 111111
7. Serial port configuration: confirm COM2/COM3 is RS485 2W
8. Disable CODESYS runtime (CODESYS occupies serial port and blocks MPI)
9. Save settings and reboot HMI
10. Step-by-Step Commissioning Workflow

Schritt 1 Hardware continuity test (Multimeter)

1. Ausschalten: resistance between A and B ≈60Ω (both ends 120Ω termination active)
2. No short circuit between A/B and ground
3. Signal ground connected; common ground to avoid differential voltage and port damage

Schritt 2 Serial loopback test (Verify HMI port health)

Short HMI A and B pins, create free protocol device. If send/receive works, serial hardware is good.

Schritt 3 PC simulation test

1. Run online simulation in EBPro
2. Enable Diagnoser (System Parameters → Remote → Enable Diagnoser) to view real-time packets
3. Transmit packets only, no receive: Verdrahtung / station ID / baud rate error
4. No packets sent: wrong port, port occupied by CODESYS, wrong model selected

Schritt 4 Download project to HMI and online test

1. Test MPI alone; disconnect Ethernet and CAN to eliminate interference
2. Keep cable short; MPI total length ≤50m. Use Profibus shielded cable for longer runs
3. Shield single-end grounding: ground only at PLC side; leave HMI shield floating to prevent ground loop
4. Häufige Fehler & Lösungen (Device No Response)

Fehler 1 HMI shows【Device No Response】

1. Top cause: COM2+COM3 MPI enabled together → use only one port for MPI
2. Nichtübereinstimmung der Baudrate (PLC 19.2K vs HMI 187.5K) → set both to 187.5K
3. Fehlender Abschlusswiderstand, signal attenuation → enable 120Ω at both ends
4. Serial port occupied by CODESYS → stop CODESYS runtime and reboot
5. RS485 4W selected by mistake → switch to 2W half-duplex

Fehler 2 Zeitweise Unterbrechung, jumping data

1. Shield grounded at both ends → ground shield only at PLC
2. Excessive bus length or T-branches → MPI bus does not allow T taps
3. Different power grounds with voltage difference → share same DC24V supply for HMI and PLC

Fehler 3 M area readable, DB blocks cannot be read

1. DB block not downloaded to PLC
2. “Optimized block access” enabled in TIA Portal, non-addressable for HMI

✅ Fix: Uncheck optimized block access, recompile and download PLC program

8. Additional Restrictions
9. cMT3102X does not support MPI + Profibus simultaneously
10. MPI works as master only (HMI master, PLC slave); cannot be MPI slave
11. Max 31 nodes on one MPI bus; HMI station address fixed at 0
12. Quick Check List (On-site tick list)

☑ Port: Only COM2 OR COM3, no dual MPI

☑ Mode: RS485 2W, not 4W or RS232

☑ Baud rate: Strictly 187.5K

☑ Station ID: HMI=0, PLC≠0, unique addresses

☑ Termination: 120Ω enabled at HMI and PLC ends

☑ Cable: Profibus shielded cable, no T-branch, total length＜50m

☑ Software: Correct model, EBPro version compliant, CODESYS disabled

☑ DB block: Optimized access disabled, downloaded to PLC

☑ Common ground, shield grounded only at PLC

Notiz: cMT3102X belongs to cMT X Advanced series (3xxx = Advanced, native CAN + MPI). 2xxx = Standard series, no CAN and no MPI.

1. Modellkodierungsregel

cMT 3 10 2 X (R)

1. 3 = Advanced (DÜRFEN, MPI, dual LAN); 2 = Standard (no CAN, no MPI)
2. 10 = 10.1 Zoll; 07=7″, 09=9.7″, 15=15″, 16=15.6″
3. 2/8 = Dual LAN; 6 = Single LAN
4. X = cMT X series; H = High resolution; P = Capacitive touch; R = Built-in RFID
5. cMT X Advanced Series (3xxx, including cMT3102X, CAN+MPI)

7″cMT3072X2 (Base, 800×480)

cMT3072XH2 (high resolution 1024×600)

cMT3072XHT (wide temperature -20℃)

cMT3072XP (capacitive touch)

9.7″cMT3092X

10.1″ (Hauptmodelle, including target model)

cMT3102X (Standard, widerständig, 1024×600, MPI+CANopen+J1939)

cMT3102XR (built-in RFID reader)

cMT3108XH (high resolution 1280×800, widerständig)

cMT3108XP (hohe Auflösung + multi-touch capacitive)

15″cMT3152X

15.6″cMT3162X (Full HD 1920×1080)

Common features: Dual LAN (Gigabit LAN1 + Fast LAN2), COM1/2/3, native CAN, MPI 187.5K on COM2/COM3 (one at a time), CODESYS Soft PLC optional, MQTT / OPC UA cloud connectivity.

3. cMT X Standard Series (2xxx, no CAN, no MPI, kostengünstig)

4.3″cMT2058XH

7″cMT2078X

10.1″cMT2108X2

12.1″cMT2128X

15″cMT2158X

15.6″cMT2166X

4. Headless Gateway Models (Keine Anzeige, for data gateway only)

cMT-SVRX-820 / 822 (Ethernet + Seriell + DÜRFEN, no screen)

cMT-FHDX-820 (HDMI output for external monitor)

5. Auswahlhilfe
6. Require MPI + DÜRFEN (J1939 construction machinery, CANopen hydraulic) → 3xxx Advanced such as cMT3102X
7. Connect regular PLCs only, no CAN/MPI → 2xxx Standard for lower cost
8. Suffix: R=RFID; H=High resolution; P=Capacitive; HT=Wide temperature
9. 10.1″ Advanced Peer Alternatives

Basismodell: cMT3102X

High-res resistive: cMT3108XH

High-res capacitive multi-touch: cMT3108XP