MGP1684L General Purpose Controller
The MGP1684L controllers are rugged, network centric, high-performance Input/Output controllers to accommodate general and specific applications, featuring LONWorks Networks® ISO/IEC 14908-1 (ANSI/CEA 709.1-B and EN14908.1) Control Network Protocol and Modbus (RS-485) Protocol.
• Controlling of Air Handling Unit, Cooling Tower, Chiller, Pump, Fan Coil Units, Fans, Fume Hoods and Venturi valves controls.
• Jumper-less software configurable analogue inputs for 10KΩ thermistor, 0-10volt, 0 to 20mA or 4 to 20mA types.
• Host processor: ARM® CORTEXTM M3 32bits RISC core.
• Communication processor: FT5000 Neuron chip.
• Additional RS485 communication port for interface with non-LON devices, e.g., UPM330M Mode Bus digital power meters.
• Battery backup high accuracy real-time clock.
• Software & hardware watchdog timer provided for high reliability operation.
• High speed 12 bits A/D converter with programmable gain amplifier yields high speed and accuracy reading.
• 12-bits D/A converter to provide high precision controls.
• Non-volatile memory for retention of configuration properties in event of power loss.
• Detachable terminal blocks and Din rail mounting to allow fast installation and easy maintenance.
Inputs & Outputs
Analogue Inputs
• 8 Channels (12-bits Resolution)
• Voltage: 0 – 10V (± 1% V)
• Current: 0 – 20mA (± 1% mA), 4 – 20mA (± 1% mA)
• Resistance: 0 – 30K (± 1% Ω)
• Thermistor: 10KΩ, PT1000 (Both ± 1% °C)
Digital Inputs
• 8 Channels
• Type: Voltage Free
• Limit: +5V at 500 Ohm Resistance maximum
Digital Outputs
• 8 Channels
• Type: Relay Contacts, SPST NO, 48VA at 24VAC, Pilot Duty
Analogue Outputs
• 4 Channels (12-bits Resolution)
• Voltage: 0 – 10V
• Current: 0 – 20mA, 4 – 20mA
(up to 800Ω load if input power is 24VDC or 1000Ω if input power is 24VAC)
Communication
LON
• FT-X3 Communication Transformer (Free Topology) 78Kbps
• Communication Processor FT5000 (Support up to 254 Network Variable)
• ISO/IEC 14908 (ANSI/CEA 709.1-B and EN14908.1)
• LonMark® Version 3.2
RS-485
• EIA-485 (Two-Wire)
• Half Duplex
• Baud Rate Speed: 9.6k, 19.2k, 38.4k, 76.8kbps
• Data Bit: 8-bits
Status Indicators
• Operation Status LED
• Communication Status LED
• Commission Status LED
• Digital Output LEDs
Supply Connection
• Power Supply: 24VAC +/- 5%, or (24~34) +/- 5%VDC
• Consumption: 3.6VA Max, or 300mA Max @ 24VDC
Environmental Limits
• Operating Temperature: 32° to 150° F (0° to 65° C)
• Storage Temperature: 4° to 150° F (-20° to 65° C)
• Operating Humidity: 10% to 95% HR (non-condensed)
Mechanical
• Dimension: 170mm (L) x 122mm (W) x 45mm (H)
• Weight: 370g
• Material: ABS
Wiring Options
• Power Supply: 1.2mm2 – 1.5mm2 PVC Cable
• LON Comm.: 16-22AWG Unshielded; or Belden 8471 Unshielded Twisted Pair (Recommended)
• I/O Comm.: 20AWG shielded
Electromagnetic Compatibility (EMC)
• CE Standards EN50081-1, EN50082-1
Interoperability
• Compliant with LonMark® Interoperability Requirement
Variables & Constant
• 45 pseudo variables and 60 constant values.
Mathematic Functions
• MAX, MIN, SUM, AVG, LINEAR, BTU, PID, ADD, SUB, MUL, DIV,
SQUARE ROOT, HALF.
Logical Functions
• AND, OR, XOR, NOR, NAND, NXOR, NOT, LT, LE, GT, GE, NE, EQ, IF, ELSEIF, ELSE.
Controls Functions
• PID control loop, Thermostatic control loop.
• Set point reset of different modes:
• Occupied, standby, by pass and unoccupied modes. Timer/Counter
• 4 number configurable count up or down
Timer/Counter.
• 1 number configurable bypass timer.
• 8 number run hour timers.
Schedule Management
• Occupied, Unoccupied, Standby and Bypass modes.
• 16 numbers of 7 days schedule and 10 numbers of Holiday schedule.
• AND & OR functions for schedule management.
• Linearization Table for 10KΩ thermistor PT1000 temperature sensors.
• Steinhart-hart interpolation for calibrated 10KΩ thermistor to yield ± 0.1°C accuracy.
Output Supervision
• On-Failure, Off-Failure, Trip and Maintenance Handling.
Analogue Input Alarm
• High-Level and Low-Level alarm.
Digital Input Alarm
• High State, Low State, Change of State, High to Low and Low to High.
Pulse Pair On/Off Control
• Digital outputs can be paired to control a motor.