GE Industrial Solutions Entellisys 4.0 System User Manual - Manual (Page 24)

System architecture 24
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1.3.13 Touchscreen HMI
The system interface for the Entellisys switchgear will be through one or more touchscreen
computer displays. The display is driven by a separate computer and communicates to the
CPUs through an Ethernet connection. The System Interface Ethernet Switch provides the
physical interface.
The HMI communicates primarily with one of the CPUs but can switch to the other in event of a
failure. Functionality provided by the HMI includes:
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Programmable user login to grant/deny access to specific features
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Animated one-line that shows the current status of the entire system
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Circuit breaker status, circuit breaker control
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Metering, demand logging, harmonics
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User settings for overcurrent protection, relay protection, advanced multi-source protection.
This may be writable or read-only depending on permissions granted.
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Customer-specific discrete I/O programming and status
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Customer-specific control scheme programming and status
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Sequence of events
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System health – showing the health of the Entellisys equipment
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Alarm panel – setup, panel status, e-mail configuration for alarms
NOTE: The HMI is not critical to the protection functionality of the system. The HMI can be
brought down for service with no loss of protection in the system.
1.3.13.1 In-gear HMI
Typically a touchscreen HMI is installed in the switchgear. This is deemed an “in-gear” HMI.
A redundant in-gear HMI is available as an option. The redundant HMI is also a touchscreen HMI
located in the gear.
1.3.13.2 Near-gear HMI
Optionally, a touchscreen HMI may be installed near the switchgear equipment, but away from
the hazardous arc flash zone. This can be in a separate stack or in a wall-mount box up to
250 feet from the switchgear. This is deemed a “near-gear” HMI.