Sigmatek ETV-0851 Intelligent Operation Panel

Sigmatek ETV-0851 Intelligent Operation Panel

Core hardware performance

Project parameters

CPU EDGE Technology X86 compatible processor, L1-32KB, L2-256KB cache, AMI BIOS

Memory DDR2-RAM: 64MB; SRAM power down to maintain memory: 512KB

Storage 512MB microSD card (order number 12-630-051)

Display screen 8.4 "SVGA TFT-LCD, 800 × 600, 18 bit (262K color), LED backlight; Typical brightness of 250cd/m ², contrast ratio of 600

Touch screen 4-wire analog resistive touch screen, 12 bit resolution 4096 × 4096

Passive heat dissipation without fan, maximum power consumption 10W

Weight/Size 240 (W) × 200 (H) × 40.5 (D)   mm; Approximately 1.5   kg; Front Panel 3.5mm anodized aluminum

Electrical power supply

Power supply: DC24V, allowable range 18-30VDC; Typical current without peripherals 400mA, maximum 450mA; maximum impulse current 27A@9 µ s.

Power supply requirements: Isolation transformers and secondary fuses must be used.

Real time clock RTC: CR2032 lithium buffer battery (order number 01-690-055 Renata); Save clock for up to 7 years after power outage; The installation direction of battery polarity varies among different hardware versions; Charging, dismantling, and putting into fire are strictly prohibited as there is a risk of explosion.

Built in digital I/O

8-channel digital output DO: maximum 2A per channel, total current of all channels up to 6A; equipped with short-circuit protection; The maximum braking energy of a single channel for inductive load is 0.12J.

8-channel digital input DI: 24VDC input; High level>14V, low level<4.5V, typical threshold 11V; input current 5mA@24V The input delay is about 5ms.

All interfaces (backplane+front)

X1 power supply: 4-core Phoenix terminal, 24VDC power supply.

X2 CAN bus: 6-core Weidm ü ller terminal; CAN‑A / CAN‑B / GND； Both ends of the bus must have terminal resistors.

X3 and X8 digital IO terminals: two 8-core spring phoenix terminals; X3=DO1‑4 + DI1‑4； X8=DO5‑8 + DI5‑8。

X4 Ethernet RJ45; 

Attention: Mixing non Sigmatek devices in a network can trigger real-time running errors due to broadcast packet overload, requiring routers/firewalls to filter packets; Limited to local area network use only.

X5 VARAN bus (RJ45): Sigmatek dedicated real-time industrial bus, with a maximum cable length of 100m.

X6 USB1.1 Mini‑B； X7 USB2.0 Type-A (backplane); The front also comes with one USB 2.0-A port; Some USB peripherals on the market are not compatible and must be tested before use.

MicroSD card slot: stores OS, engineering, persistent data, recommended original SD card; Frequent reading and writing can shorten the lifespan of SD.

LED status indicator light

ERROR red light: constantly on=BIOS startup; Flashing=Operating system startup or malfunction.

DC green light is always on: 24V power supply is normal.

Environment, Protection, and Machinery

Protection level: Front panel IP54; The back of the device is IP20.

Temperature: Storage -10~+85 ℃; Reference EMC standard for working temperature; Humidity of 10-90% without condensation.

Vibration impact: Complies with EN60068-2-6 and EN60068-2-27.

EMC: EN 61000-6-2 anti-interference, EN 61000-6-4 radiated emission; UL508 certification.

Installation requirements (mandatory requirement for passive heat dissipation)

The gap between the left and right sides of the back is ≥ 5cm; the gap between the upper and lower sides is ≥ 10cm.

The installation tilt angle range is 60 °~120 °.

Front decorative foil chemical corrosion resistance table: can withstand alcohol, acetone, dilute acid and alkali, and engine oil; Dichloromethane and benzyl alcohol can cause damage.

Key points of bus configuration

1) CAN bus

Up to 31 nodes; Each station number is unique and cannot be duplicated.

The relationship between baud rate and cable length: 1 Mbit/s（30m）、500k (80m)、250k (160m)、125k (320m)、50k (800m)、20k (1200m)。

The two physical endpoints of the bus must be connected to terminal resistors of 120-150 Ω to prevent signal reflection errors.

2) VARAN real-time bus

Recommend CAT5e S-FTP industrial shielded Ethernet cable; Try to separate the wiring from the power cable as much as possible. The document provides 5 shielding grounding specifications for different scenarios:

Control cabinet → VARAN equipment outside the cabinet: Shielded at a single point grounding at the entrance of the control cabinet.

All cables are outside the cabinet: all use IP67 connectors, and the connectors are grounded internally.

Internal wiring of control cabinet: RJ45 connector housing grounded.

Close to strong interfering power components: Shielded and connected in front of power devices.

Cross cabinet connection between two control cabinets: the two ends of the cable are shielded and grounded at their respective cabinet entrances.

Fix the cable 20cm away from the joint to prevent vibration.

Wiring, grounding, ESD precautions

Grounding: The equipment must be reliably grounded with low impedance protection through cabinet installation or dedicated grounding terminals.

Ethernet uses shielded CAT-5 Ethernet cables, and RJ45 shielded enclosures are grounded.

Before USB plugging and unplugging, the human body contacts the cabinet to release static electricity, preventing ESD damage to the port.

The treatment of cable shielding layer shall be strictly carried out in accordance with the VARAN chapter.

Important instructions for SRAM to maintain memory during power failure

SRAM persistent data is actually simulated on microSD cards, not hardware SRAM, and there are usage limitations:

Two saving modes: ① Data change loop writing (default); ② Only write at the moment of power failure (supported after firmware 01.02.195).

Frequent modification of SRAM variables can significantly reduce the lifespan of SD cards; LASAL software comes with a Flash Media Lifetime Calculation tool to estimate the lifespan of flash memory.

Prohibiting writing SRAM in interrupt service programs can cause system crashes.

Short term extensive modifications (>32 sectors) before power outage pose a risk of data loss.

The user program operates SD files, and the file size cannot be dynamically changed. Power failure will damage the file system.

Hardware data breakpoint function is not supported.

Initiate Process Diagram

After powering on the main power supply:

Determine whether it is connected to LASAL software online; Reset peripherals and clear specified memory areas online.

Verify the integrity of user programs in memory; Verification failed and reported CHKSUM/POINT ER fault.

If the program is intact, copy the application program to the running memory, enter the RUN-RAM state, and execute the user application program.

Status and Fault Codes

The manual defines the complete set of status/fault codes 0-255, which can be viewed during LASAL Class status testing. Some key points include:

Code name brief reason and handling

02 RUNTIME cycle task total time exceeded limit; Optimize programs, upgrade CPU, modify task time slices

03 POINT ER program pointer error; SD card damage, battery failure, program bug; Restart the project, replace the battery/SD card

04 CHKSUM checksum error; Same as Pointer

05 WATCHDOG watchdog triggered; Programming errors, hardware malfunctions; Revise the program and replace hardware if necessary

45 VARAN ERROR VARAN bus client disconnection, communication failure; View logs and fault trees

75 SRAM - ERROR SRAM simulation storage SD card abnormality; Check SD card, format SD card, verify configuration

67 REALTIME RUNTIME Real time task timeout, CPU overload; Optimize real-time tasks

Maintenance operation

Steps for battery replacement: Power off the entire machine; Open the screws on the back cover; Remove the old battery; HW1. x battery with positive pole facing back cover; HW2. x positive pole facing the front of the panel; Reinstall the back cover.

Touch screen cleaning: power must be turned off first; Dip a soft cloth in cleaning agent; Do not directly spray the cleaning agent onto the panel; Prohibit grinding and corrosive solvents; Recommend finger operated touch screen.

Developing software related

PC screen editing: LSE mask editor, create HMI screens and download them to the panel.

PLC programming software: LASAL CLASS; Can debug online, download projects, read fault logs, and evaluate SD card lifespan.

BIOS default configuration: Load LASAL operating system from microSD card.

Supporting accessories

Complete connector kit CKL213, order number 12-600-213.

512MB original microSD card 12-630-051; RTC battery 01-690-055.