F6220 (Material Number 984622002) is a German HIMA 8-channel SIL3-level thermocouple input module (AI/TC), with TMR triple redundancy, used in H41q/H51q/HIQuad safety systems (ESD/BMS/F&G). 

I. Core Parameters (984622002)

Model / Material Number: F6220 / 984622002

Channels: 8 independent thermocouple inputs

Thermocouple types: J, K, T, E, N, S, R, B (software selectable)

Measurement range: -200°C ~ +1800°C (depending on type)

Resolution: 16 bits (0–65535)

Safety level: SIL3 (IEC 61508), AK6, Cat.4/PL e (TÜV certification)

Architecture: TMR triple redundancy, hardware voting

Isolation: Channel - Backplane 200V AC isolation; Channel-to-channel isolation

Accuracy: ±0.1% FS at 25°C; ±0.3% FS at 0~+60°C

Cold junction compensation: Built-in precision temperature sensor, automatic compensation

Filtering: Hardware low-pass, time constant ≈ 10ms

Update cycle: 50ms; Safety response < 450ms

Power consumption: 5V DC ≈ 100mA; 24V DC≈60mA

Operating temperature: -20℃ ~ +60℃

Dimensions/Weight: 4TE (25×203×127mm) / Approximately 0.5kg

Installation: DIN rail, supports hot swapping

Diagnosis: Open circuit / Short circuit / Overrange / Cold junction fault real-time detection

II. Terminal Pins (28 Pins)

CH1+/– ~ CH8+/–: 8 channels of thermocouple input (+ positive / – negative)

24V DC/GND: Module power supply

SG (Shield Ground), PG (Protection Ground), NC (Open Pin)

Connection: 2-wire thermocouple; Shielded wire single-ended grounding (module side)

III. Functions and Features

TMR High Reliability: Three-channel independent sampling, single-channel failure does not affect the safe operation of the system.

Full Channel Diagnosis: Real-time detection of open circuit, short circuit, over-range, and cold junction faults, software fault channel location.

Multiple Types of Adaptation: Supports 8 common thermocouples, software configuration, suitable for temperature monitoring of high-temperature furnaces, boilers, reactors, etc.

Cold Junction Automatic Compensation: Built-in high-precision sensor, automatic compensation of cold junction temperature, ensuring measurement accuracy.

Seamless Integration: Compatible with F3311/F3313/F4316 and other CPUs, backplane automatically identifies and allocates addresses.

Hot Swap: Online replacement of modules without shutdown, convenient maintenance.

IV. Differences from F6217

F6217: 8-channel analog input (4–20mA/0–10V), used for pressure / level / flow sensors.

F6220: 8-channel thermocouple input, specifically for temperature measurement, built-in cold junction compensation