Modbus

Remotely monitor oilfield applications

Modbus

Remotely monitor oilfield applications

  • Monitors BMS status registers including inputs, outputs, and internal state information
  • Remote starting and stopping of the BMS
  • Allows remote set point adjustments


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Power Supply RequirementsVALUE
VoltagePF2100 System Voltage
Max CurrentThe lower of :
(1) the current limit of the PF2100 power supply or
(2) 250 mA thermally fused on the input card
Temperature RatingsMinMax
Operating Range-40°C (-40°F)+60°C (+140°F)
Terminal BlocksVALUE
Maximum Wire Gauge16 AWG
CommunicationsVALUE
ProtocolModbus RTU
Baud Rate9600 or 19200 bps (user selectable)
ParityNone
TX to RX Delay2 or 25 ms (user selectable)
RS-485 SignalingVALUE
Min Differential Receiver Voltage400 mV (A to B)
Absolute Max Receiver Voltage15 V (A to GND, B to GND)
Typical Differential Driver Voltage5 V (Y to Z)
Maximum Driver Short Circuit Current+/- 250 mA
TerminationNone or 120? (user selectable)
Receiver Input Impedance96 k?

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