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RC SYSTEMS
PRODUCTS |
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ST-72 - 16, 32, 48, 64 Channel Controller
- 16, 32, 48 and 64 channel display modes accepts inputs from many sensor types and signal ranges. I/O possibilities include analog, modbus RS-485, ethernet and wireless modem
- Four RS-485 serial ports allow simultaneous modbus master / slave operation and multiple masters
- 3 independent alarm levels per channel. Relay Acknowledge feature allows silencing of external audible devices during alarm conditions
- Color LCD displays monitored data as trends, bar graphs and engineering units. Graphic readouts change colors to indicate alarm status
- 5 standard SPDT 5-amp common alarm relays including dedicated HORN / FAULT relays, plus 3 programmable alarm relays
- Options such as direct sensor inputs, 4-20mA outputs, discrete alarm relays and others are supported via an I2C expansion bus
- Cal Mode offers pushbutton zero / span calibration for direct sensor interface applications
- Authorization Mode allows locking of system configuration
- Data Logger allows recording of minimum, maximum and average values over a programmable interval
- Ethernet web server allows backup and restore of system configuration. Web interface allows remote configuration
- SD card for data logging and configuration of system parameters
- Magnetic keypad allows nonintrusive operation in potentially hazardous locations without opening enclosure
- NEMA 4X, Explosion-Proof, panel and rack mount packaging options available
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The ST-72 Graphic Display / Alarm Controller is designed to provide simultaneous display and alarm functions for up to 64 input variables. Operation may be set for 16, 32, 48, or 64 maximum channels and I/O modules are arranged in groups of 16 channels. A QVGA color LCD graphically displays monitored data as trends, bar graphs and engineering units. Three adjustable alarm levels per channel and programmable relays allow control of beacons, horns and other alarm events.
Analog inputs may be 4-20mA, voltage and/or direct connect sensors via sensor specific AI cards. Modbus RS-485 and ethernet ports also allow inputs from serial devices including our ST-48 Modbus compatible sensor transmitters.
The ST-72 is easy to configure and user friendly. Standard features such as measurement ranges in engineering units, configurable alarms, serial / ethernet ports, embedded web pages, SD card and many others combine to allow the ST-72 satisfy the needs of many demanding applications. It is widely used for centralizing thedisplay and alarm processing functions in critical multipoint monitoring applications. These include monitoring of ambient gas detection, rotating machinery, tank levels, flow, temperature and others.
RS-485 Modbus slave ports allow multiple ST-72's to be multidropped onto a single data highway for interrogation by another Modbus master. ST-72’s may also be cascaded by connecting one unit’s master port to another’s slave port.
ST-72 options such as discrete alarm relays per channel, 4-20mA I/O, direct sensor input conditioning and others are added by connecting appropriate 16 channel I/O options to the economical I2C expansion bus. Familiar “telephone style” cables and connectors interface to this bus. This method allows versatile system configuration of options satisfying the most unusual user applications.
Nonvolatile memory retains all configuration data indefinitely.
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