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Isolated Quad Modbus RTU Interface Card

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Pneumercator 900931 Series Isolated Quad Modbus RTU Interface Card

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Model # Description Price Qty
900931-1-4 For TMS3000 $4,377.75
900931-3-4 For TMS4000, TMS4000W (Second Generation with 900907-1 Processor Card) $4,377.75
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Pneumercator - 900931 Series - Isolated Quad Modbus RTU Interface Card
The ModBus RTU Interface Cards are plug-in connectivity products that offer an easy, cost-effective solution providing access to all TMS real-time tank management data from practically any building management system or programmable logic controller supporting the industrystandard ModBus RTU serial communications protocol. Available TMS/LC2000 data includes continuous tank data, statuses and alarms, leak/point level sensor statuses and contact closure input statuses. Communications is over a half duplex, single twisted-pair RS-485 cable up to 4000 feet in length, with a switch-selectable line termination resistor for multi-drop configurations. Installation and setup is quick and easy, requiring no programming on the TMS/LC2000 console. Available in single, dual and quad-channel configurations, isolated or nonisolated.

Features

  • Industry-standard interface to most building management systems and programmable logic controllers
  • Add ModBus RTU support to any TMS/LC2000 System, either as a factory-shipped option or as a field upgrade*
  • Installs within the locked TMS/LC2000 enclosure for secure, tamperproof connectivity
  • No TMS/LC2000 programming required. Simply set slave address and baud rate on ModBus RTU card dip switches.
  • ModBus status register allows host processor to confirm continuous updating of ModBus registers by TMS/LC2000
  • Single, dual and quad-channel(TMS3000/4000 only) configurations available, with isolated or non-isolated options.

Specifications

  • Communications Protocol: Modbus RTU
  • Communications Format: RS-485, Half-Duplex
  • Connection Type: Plug-In Terminal Block with Wire
  • Input: Ch. A (+), Ch. B (-), Shield, Output: Ch. A (+), Ch. B (-), Shield
  • Recommended RS-485 Cable: Belden 9841 (PVC Jacket), 89841 (FEP Teflon Jacket) or similar
  • Maximum Cable Length: 4000 Feet (1200 Meters) total to end of run
  • LED Indicators: TX (Slave Transmit), RX (Global Receive)
  • Serial Data Format: Fixed, 1 Start Bit, N-8-1
  • Baud Rate: 9600 or 38400, Dip Switch Selectable
  • Slave Address Select: 1 thru 64, Dip Switch Selectable
  • Maximum Slave Response Time: 400 ms
  • Maximum Number of 16-Bit Registers per READ Command: 64
  • Maximum Register Update Rate from TMS: 1.2 seconds (0.8 seconds typ.)

Requires TMS firmware Vxx.99.94 or later, available at no charge with purchase of ModBus card.