Safety concept of the controller, Additional resource – Rockwell Automation 1752-L24BBBE SmartGuard 600 Controllers User Manual User Manual
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Rockwell Automation Publication 1752-UM001E-EN-P - June 2014
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Overview
Chapter 1
When the IP Address display switch is pressed for 1 second or longer, the display
shows the EtherNet/IP address that is set.
Errors detected by the controller are recorded in an error history log and an
EtherNet/IP history log, along with the time the error occurred. (The time is
shown as total operating time since the controller was powered up.)
Safety Concept of the
Controller
The SmartGuard 600 controller is certified for use in safety applications up to
and including Safety Integrity Level (SIL) 3, according to IEC 61508,
Performance Level PL(e) according to ISO 13849-1, and Category (CAT) 4,
according to EN 954-1, in which the de-energized state is the safety state. Safety
application requirements include evaluating the probability of failure rates (PFD
and PFH), system reaction-time calculations, and functional verification tests
that fulfill SIL 3 criteria. You must read, understand, and fulfill these
requirements prior to operating a SmartGuard 600 controller-based SIL 3 or
CAT 4 safety system.
The controller uses the following mechanisms to support the integrity of safety
data.
•
Safety network number (SNN) — A unique number that identifies the
safety network. CIP safety nodes must have a unique SNN and DeviceNet
network address.
•
Configuration signature — The combination of an ID number, date, and
time that uniquely identifies a specific configuration for a safety device.
•
Configuration lock (or safety-lock) — After the configuration data has
been downloaded and verified, you can lock the controller’s configuration
to prevent it from being modified.
•
Password protection — The controller’s configuration can be protected by
the use of an optional password. If you set a password, download, locking,
unlocking, resetting, and changing the status of the controller requires a
password to perform.
You must create and document a clear, logical, and visible distinction between the
safety and any standard portions of the application.
Additional Resource
Refer to the SmartGuard Controllers Safety Reference Manual, publicatio, for information on SIL 3 and CAT 4 safety system requirements,
including functional verification test intervals, system reaction time, and PFD/
PFH values.