NOVUS DigiRail-4C - Manual

NOVUS AUTOMATION 1/3
DigiRail-4C
Digital Counter Input Module
INSTRUCTION MANUAL
INTRODUCTION
The Modbus Module for Digital Inputs - DigiRail-4C is an electronic unit with four digital counter inputs An RS485 serial
interface allows reading and configuration of these inputs, through communication network. It's appropriate for mounting
on DIN 35 mm rails.
The inputs are electrically insulated from the serial interface and the module supply. There is no electrical insulation
between serial interface and supply. There is no electrical insulation between the inputs 1 and 2 (common negative
terminal), as well as between the inputs 3 and 4.
Configuration of the DigiRail-4C is performed through the RS485 interface by using Modbus RTU commands. The
DigiConfig software allows the configuration of all features of the DigiRail as well as its diagnostics. The DigiConfig
offers features for detecting the devices present in the Modbus network and for configuring the communication
parameters of the DigiRail-4C.
This manual provides the instructions for installation and connection of the module. The installer for DigiConfig and the
documentation regarding Modbus communication for the DigiRail-4C (Communication Manual of the DigiRail-4C) are
included in the CD-ROM which accompanies the product. They are also available for download at
www.novusautomation.com .
SPECIFICATIONS
Inputs: 4 Digital Inputs: Logical level 0 = 0 to 1 Vdc; Logical level 1 = 4 to 35 Vdc
Internal current limitation at the inputs: approximately 5 mA
Maximum count 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 (per input): 32 bits (0 to 4.294.967.295)
Special countings: Capable of counting pulses in given time intervals (pulse rate) and retaining peak countings in given
time intervals (peak rate). Independent time intervals for both functions.
Power: 10 to 35 Vdc / 50 mA maximum. Internal protection against polarity inversion.
Electrical insulation between inputs and supply/serial port: 1000 Vdc for 1 minute
Serial communication: RS485 at two wires, Modbus RTU protocol. Configurable parameters: Communication speed: from
1200 to 115200 bps; Parity: even, odd or none
Key for restoring communication parameters: The RCom key, at the front panel, will set the device in diagnostics mode
(address 246, baud rate 1200, parity even, 1 stop bit), able to be detected and configured by the DigiConfig software.
Frontal light indicators for communication and status:
TX: Signalizes that the device is sending data on the RS485 line;
RX: Signalizes that the device is receiving data on the RS485 line;
Status: When the light is permanently on, this means that the device is in normal operation; when the light is
flashing in a second interval (approximately), this means that the device is in diagnostics mode.
Software configurator in Windows environment: DigiConfig
Electromagnetic compatibility: EN 61326:2000
Operating temperature: 0 to 70 °C
Operational relative humidity: 0 to 90% RH
Assembly: DIN 35 mm rail
Dimensions: Figure 1 shows the dimensions of the module.