Description
The DigiRail line of smart transmitters with Modbus RTU communication interface provide a simple way for integrating analogue or digital signals to supervisory systems.They can be used on a variety of different equipment to provide a simple and easy way to expand or augment an existing system with additional channels. The most commonly connected equipment is the GRD GPRS/GSM loggers, CMC-99 display/loggers or to an HMI or DABIN control units
DigiRail transmitters are available in 3 different models, detailed below:-
DigiRail-2A – A dual channel analogue input module designed for Thermocouples, PT100, millivolt, Voltage and mA signals. Sample rates from 5Hz to 10Hz. Features: internal CJC for thermocouples; compensation for PT100 3-wire cables; both channels and RS485 port are fully isolated to 1000V. Range of inputs are below.
- Thermocouples – Type J, K, T, E, N, R, S, B
- PT100 – -200°C to 650°C (-328°F to 1202°F)
- millivolt – 0 to 20mV, -10 to 20mV, 0 to 50mV
- Voltage – 0 to 5vDC, 0 to 10vDC
- Current – 0 to 20mA, 4 to 20mA
DigiRail-4C – Four channel pulse counter input module. Features: Max frequency: 1000 Hz for signals with square wave and working cycle of 50%; Input 1 can be configured for counting signals of up to 100 kHz; Counting Capacity: 32 bits (0 to 4,294,967,295; four channels and RS485 port are fully isolated to 1000V. Options: Pulse Rate (total pulse in a given time period) or Peak Rate (retaining peak countings in a given time interval) with independant time intervals on both functions.
DigiRail-2R – Dual channel relay output module. Accurate 32 bit timing circuit allows relays to be triggered at hundredths of a second intervals. Fast 6ms response times to commands. Two SPDT Relays rated at 8A / 250Vac. Both channels and RS485 port are fully isolated to 1000V.
