Serial Data Acquisition
The serial interface remains one of the most popular communications interface in industrial electronics.
The Serial uDAQ range includes Analog I/O, Digital I/O, Counter/Timer and Temperature units. Units are supplied with a serial cable, power supply, API software and our ready to use acquisition package, Waveview For Windows. Optional accessories are available including power supplies, various screw terminal adaptors & interface modules.
The Serial μDAQ Digital I/O and Counter/Timer series has support for 24 to 120 digital input/output lines and 6 counters. They are available in 5 basic models, SRL-24, SRL-48, SRL-72, SRL-96 and SRL-120.
SERIAL MICRODAQ MODBUS FEATURES
- Open source Protocol - Easy to implement - Communicate to our Daq Devices from any Mosbus Compliant Device
Modbus is communication standard developed in the late 1970's by Modicon. It has become the de-facto standard for the industrial instrumentation and control market. Utilising a master/slave format, the protocol involves sending serial packets from a master device to a slave device. This action is performed using one of 2 variants of the protocol, Modbus-RTU or Modbus-ASCII.
All serial MicroDAQ products can now be ordered with integrated modbus firmware. This allows the unit to act as a slave device and communicate using the Modbus protocol. One is able to a communicate from the slave device to a PC acting as a master device or to any other Modbus-compliant device such as a PLC. The slave data acquisition device can either be polled for a status or sent a command to carry out.
MicroDAQ devices are fitted with either RS232 or RS485 serial interfaces and are available with different analog or digital i/o options. These include 16 or 32 analog inputs, 4 or 8 analog outpus, 24~120 DIO lines as well as upto 6 counter/timers. Analog is resolution is either 14-bit or 16-bit (model dependent).
We plan to implement Modbus TCP/IP for all our ethernet network devices in the near future.