UniOP ePALM10 Handheld HMI

UniOP EXOR ePALM10 Mobile Human Computer Interface Technology Analysis: A Complete Practical Guide from Hardware Specifications, Wiring Specifications to Battery Maintenance and Fieldbus Expansion

Product positioning and design philosophy

UniOP ePALM10 is a handheld human-machine interface (HMI) device launched by EXOR (formerly UniOP brand), equipped with a graphical display screen and a 27 key keyboard with tactile feedback. Its shell is made of sturdy polyamide material, which has high impact resistance and environmental resistance, combined with IP65 protection level, making it an ideal choice for mobile operation scenarios in workshops. This product belongs to the handheld product line of the UniOP family, inheriting the complete set of universal functions of the UniOP control panel, while adding unique hardware level security design for mobile applications.

It should be noted that since October 2001, the wiring method of the Dead man button (self-protection button) has been changed. Engineers involved in second-hand equipment procurement or old machine renovation must verify the equipment version to avoid safety hazards caused by construction according to the old wiring diagram.

Core hardware specifications

The main technical parameters of ePALM10 are as follows:

Display and Memory

Graphics resolution: 120 × 64 pixels, effective display area of 66 × 33mm, capable of displaying 8 lines x 20 characters

Translucent LCD: maintains good readability in both strong light and dim environments, which is a key advantage in mobile work scenarios

Supports scaling fonts, 256 user-defined characters, and contrast can be adjusted through software

User memory 512KB Flash, recipe memory 16KB, maximum alarm capacity 1024, event list 256

front panel

9 function keys (F1~F9), 18 system keys, 20 user LEDs, 5 system LEDs, without touch screen

Built in hardware real-time clock (RTC)

Interface and power supply

PC/printer port, PLC port (RS-232/RS-485/RS-422), Aux port (connected to fieldbus through optional modules)

Programming speed 9600~38400bps

Power supply of 18-30VDC, maximum power consumption of about 300mA at 24VDC, automatic fuse

The total weight of the machine is about 0.5kg (excluding cables), the working temperature is 0-50 ℃, the storage temperature is -20~+70 ℃, the humidity is 5-95% RH, and there is no condensation

Software features

Programming with UniOP Designer 5.08 and above

Supports over 130 communication drivers for industrial equipment

Multiple data display formats including numerical values, text, and bar charts; Dynamic graphic objects; Formula data storage; Keyboard macro editor; Alarm and historical alarm list; Level 8 password protection; Serial port printer report output

Safety circuit design: emergency stop and Dead man buttons

The core value that distinguishes ePALM10 from ordinary panel HMI lies in two hard wired safety functions:

1. Emergency Stop button

The emergency stop button provides two NC (normally closed) contacts and is directly hard wired to the communication cable - this signal does not pass through the internal terminal block. According to the original specifications, the wiring of the emergency stop circuit must be processed according to the SELV (Safety Extra Low Voltage) circuit, and only low-voltage circuits below 48VDC are allowed to be connected. When used, it must comply with the EN 60950 standard. The color codes for emergency stop cables are: E-Stop 1 (NC) green/yellow, E-Stop 2 (NC) brown/orange, both with a cross-sectional area of 1mm ².

2. Dead man self-protection button

A set of independent NO (normally open) contacts are set on each side, with a total of four wires (CN5 terminals 1-4). The operator must continuously press and hold the Dead man button to allow the device to operate - releasing it triggers a protective action. Typical applications include manual remote control of mobile machinery/cranes/AGVs. The wiring color codes are: DM Right (NO) blue black/blue, DM Left (NO) blue black/blue, with a cross-sectional area of 0.35mm ² (approximately 22AWG).

Compliance reminder: All circuits inside the handheld device, including emergency stop and Dead man button wiring, should be considered as SELV circuits, and the overall installation must comply with EN 61000-6-4 (emission interference) and EN 61000-6-2 (immunity) industrial electromagnetic compatibility standards.

CA01 interface board and terminal definition

The internal terminal block of ePALM10 is a detachable module (CA01 interface board), which includes five wiring terminals:

Terminal function

CN1 Aux Port (pin mapping to standard panel version Aux Port pin1-9)

CN2 PC/printer port (pin7 RXD, pin9 TXD, pin6 GND, pin5+5V output max 100mA, etc.)

CN3 PLC ports (CHA+/CHA -/CHB+/CHB -, RXD, TXD, CTS, RTS)

CN4 power supply (+24VDC, Common, PE)

CN5 additional signal (Dead man button L/R four-way NO contact)

The terminal allocation of CN1 corresponds one-to-one with the Aux ports of the standard panel installation version, which greatly facilitates the adaptation of conventional panel wiring diagrams to handheld devices. Terminals marked as "Reserved" are strictly prohibited from use.