Description
Key Technical Parameters
Display: 5.5‑inch monochrome blue‑mode LCD, resolution 256 × 128 pixels, LED backlight Operation input: Membrane keypad, numeric keys plus 10 programmable function keys F1‑F10 Memory: 170KB runtime memory; 240KB non‑volatile flash memory Communication interface: DH+ data highway plus; RS‑232 port for printer output Power supply: 85‑264VAC, 47‑63Hz Installation: Cabinet panel mounting; front‑face NEMA 12/13 / IP54 protection Real‑time clock: Battery‑backed RTC for alarm time stamp; replaceable backup battery Programming software: PanelBuilder32 Operating environment: 0‑55℃ working temperature; UL, CE certification Note: No Ethernet port; only communicates via DH+ bus with SLC‑500 / PLC‑5 controllers
Practical Application Features
Mechanical keypad design, stable operation for workshop environments with dust and vibration. DH+ bus directly connects SLC500 and PLC‑5 series PLC, no extra gateway required. RS‑232 interface supports alarm list hardcopy output via serial printer. Supports alarm logging, real‑time data display, parameter modification, multi‑screen page switching. Battery‑powered real‑time clock provides time stamp for fault alarms. Widely deployed on packaging machines, conveying lines and water‑treatment old‑style control cabinets.
Field Installation & Commissioning Guidance
Cut off AC power before installation; perform panel cut‑out according to official dimension drawing. Fasten HMI onto cabinet panel, ensure front‑panel sealing gasket installed properly to maintain protection rating. Complete DH+ bus wiring, set correct node address for HMI terminal. Download HMI project by PanelBuilder32 software. Match PLC communication driver and node address. Replace backup battery within specified cycle to avoid RTC time loss after power‑off. Keep HMI away from inverter and high‑power equipment to reduce DH+ bus electromagnetic interference. Test alarm display, keypad input and printer output function after commissioning.
In‑Site Troubleshooting Reference
- No screen display: Check AC power input and terminal fastening; inspect backlight damage.
- Cannot communicate with PLC: Wrong DH+ node address, bus terminal resistor missing, DH+ cable damage.
- Keypad no response: Membrane keypad aging damage; check whether key‑lock function is activated.
- Time lost after power cycle: Internal backup battery exhausted, replace new battery.
- Printer no output: RS‑232 cable fault, mismatched serial‑port baud‑rate parameter.
- Intermittent communication dropout: DH+ bus wiring unreasonable, lack of terminal resistance, poor cabinet grounding.
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