I. Basic Information

Model: Z7116 (Internal Number: 3221)

Brand: HIMA (Black Horse)

Series: HIQuad X / H41q (Old system, not X-series HIMax)

Type: 16-channel Digital Input Module (DI)

Safety Level: SIL3 (IEC 61508)

Adapter Backplane: H41q Rack Backplane (Not X-BASE-PLATE)

Adapter Power Supply: 24 VDC (System Power Supply)

Status: Older model, in use, replaceable with spare parts

Installation: H41q Standard Slot (DIN Rail Rack)

II. Technical Specifications (Official)

Channels: 16 digital inputs (DI)

Input Voltage: 24 VDC (‑15% ~ +20%)

Input Type: Dry contacts / Wet contacts (NPN/PNP compatible)

Isolation: Channel-to-channel isolation, group isolation (2 groups × 8 channels)

Power Consumption: ≈ 4 W

Diagnosis: Open circuit / Short circuit / Power failure detection, SIL3 safety diagnosis

Operating Temperature: –20 ℃ ~ +60 ℃

Protection: IP20

Dimensions (Width × Height × Depth): Approximately 25 mm × 125 mm × 100 mm (H41q compact module)

Weight: ≈ 0.35 kg

III. Core Functions

16-channel safety-level digital input acquisition

Receive on-site ESD buttons, safety doors, pressure / level switches, F&G detectors, etc. dry / wet contact signals

Hardware isolation + safety verification, meeting SIL3 fault safety requirements

Fault safety diagnosis

Real-time detection and reporting of open circuit / short circuit / power abnormality for each channel to the CPU

Single-channel failure does not affect other channels; failure of one channel → system safety action

Redundancy and Compatibility

Support for H41q system redundancy configuration (1oo2)

Not applicable to X-series (HIMax), completely incompatible with X-CPU01 / X-SB01 / X-BASE-PLATE

IV. Differences from X-series (Key)

Z7116: H41q/HIQuad X legacy system, 16DI, small size, DIN rack, not X-series

X-DI-01: HIMax (X-series), 16DI, large size (29.2mm), 19-inch backplane, paired with X-CPU01

V. Typical Applications

ESD emergency stop system

F&G fire alarm system

BMS combustion management system Petroleum, chemical, power, etc. SIL3 safety instrumented systems (SIS)