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.