Sentry 5000-32-IT Controller
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2.6
Software
In addition to embedded operating system software the user should be aware of the following software
modules.
2.6.1 Graphical User Interface (GUI)
All normal operator functions are enabled through the GUI software that runs on the TPC display. All on-
screen functions are driven by software in the TPC and all required data is automatically retrieved, as
required, from the data base residing in the SBC. This separation of code allows the controller to continue
safe operation in the event of a TPC display failure.
2.6.2 Single Board Computer (SBC)
The critical operating software that manages all stack, sensor module communication, and TPC data
interface runs on the SBC. Functions such as auto discovery of modules, continuous polling of sensors
and alarm initiation are automatically executed by the SBC code. TPC requests for data are processed for
response at the time of the request. The SBC provides a Modbus slave interface useful for connection to
Sierra Monitor FieldServer products or directly to third party communication devices.
2.6.3 Commander Logic
A very powerful software component of the controller is the Commander Logic. Simple process blocks, as
listed in
, can be established to process multi-point data resulting in logical relay states and
analog output values.
Variable
Description
Block Function
Process Block function such as a Flag, Relay or Lamp
Tag Name
Name of the Function Block
Function
Logic function OR, NOR, AND
On Setpoint
Value at which the block should change logical state
Change
Amount of change required to log an input’s value
Off Setpoint
Value at which the block should return to normal logical state
Invert Output
Instruction to invert the state of the logic block
On Delay
Delay time between the logical and physical change of state
Off Delay
Delay time between the logical and physical return to normal state
Min Runtime
Minimum time that the block must remain in the “out of normal” state
Latch Hi
Requires manual reset input to clear the logical state
Rising
Determines if the value normally rises or falls into the “out of normal” state
Display Mode
A process block result can be displayed on the controller TPC
Source
Up to 48 source values can be identified as variables for the process block
Figure 12: Commander Logic Variables
Содержание Sentry 5000-32-IT
Страница 28: ...Sentry 5000 32 IT Controller Page 28 of 82 Figure 15 Analog Input Wiring ...
Страница 29: ...Sentry 5000 32 IT Controller Page 29 of 82 Figure 16 PSG Sentry Classic Wiring ...
Страница 30: ...Sentry 5000 32 IT Controller Page 30 of 82 Figure 17 Modbus Wiring ...
Страница 31: ...Sentry 5000 32 IT Controller Page 31 of 82 Figure 18 Top Board Relay Digital Output Wiring ...
Страница 32: ...Sentry 5000 32 IT Controller Page 32 of 82 Figure 19 Analog Output Wiring ...
Страница 33: ...Sentry 5000 32 IT Controller Page 33 of 82 Figure 20 Digital Input Wiring ...
Страница 34: ...Sentry 5000 32 IT Controller Page 34 of 82 Figure 21 Bottom Board Relay Wiring ...
