Product Short Description
Product Name: SafetyNet Controller (MOST SafetyNet System)
Product Overview:
A SIL 2‑rated programmable safety controller that executes the SafetyNet application downloaded from Workbench, manages communication with local I/O modules via internal Railbus, and interfaces with other controllers, HMI, and asset‑management tools over dual redundant Ethernet and serial links.
Description
Technical Specifications:
|
Parameter
|
Specification
|
|---|---|
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Power Voltage
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12 V DC (supplied from 8913‑PS‑AC)
|
|
Power Consumption
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0.4 A typical, 0.5 A max
|
|
LAN Interface
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2 × RJ45, 10/100 Mbps, 1500 V isolation
|
|
Serial Interfaces
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COM1 (9‑pin D‑sub female) & COM2 (9‑pin D‑sub male), RS‑485 half‑duplex, 1.2 – 115.2 kbps
|
|
Safety Certification
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IEC 61508 SIL 2
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|
Protection Technique
|
EEx nL IIC T4
|
|
Location Rating
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Class 1, Div 2, Groups A‑D T4 (FM/CSA)
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|
Event Log
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Up to 8000 events
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Internal Diagnostics
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1oo1D safe architecture with optional redundancy
|
|
Hot‑Swappable
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Yes, even in hazardous areas
|
|
Dimensions
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7 × 14 × 13 cm
|
|
Weight
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1.24 kg
|
|
Operating Temp.
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‑20 °C to +70 °C
|
|
Storage Temp.
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‑40 °C to +85 °C
|
|
Humidity
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5 – 95 % RH, non‑condensing
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|
HART Support
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Process & status variable transmission
|
Functional Features:
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Dual Redundant High‑Speed Ethernet – Two independent LAN connections for fault‑tolerant communication.
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Online Configurability – Re‑configure without stopping the process.
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Redundancy Strategy Management – Operates as master or standby in a redundant pair.
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Comprehensive Diagnostics – LED status indicators, internal self‑test, event logging.
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IEC 61131‑3 Programming – Via Workbench (Ladder, FBD, Structured Text).
-
Live Maintenance – Hot‑swap capability in Class 1 Div 2 / Zone 2.
Application Scenarios: Oil & gas signal conditioning in explosive atmospheres, chemical/petrochemical safe signal transmission, power‑plant critical‑process isolation, emergency shutdown systems.
Working Principle: Stores and executes the SafetyNet application; polls I/O modules on the Railbus, exchanges data over Ethernet LAN with peer controllers/HMI, and handles serial field devices; implements voted output based on 1oo1D or redundant architecture.
Installation Requirements: Mount on PAC8000 carrier; supply 12 V DC from 8913‑PS‑AC; connect dual Ethernet cables to separate network switches for redundancy; ground properly to plant earth.
Usage Notes: Only authorized personnel may modify the application; perform regular proof‑testing per SIL 2 requirements; verify firmware compatibility before hot‑swap.
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