Introduction
RTUs – being a Remote Terminal Unit – is an essential part of distributed PLC and IO systems.
This is a concise discussion on the ME-RTU module, its application options, including specifications, features and functionalities.
The following unit is applicable:
Standard and popular specifications and requirements:
- Protocol: DNP3, Ethernet, Modbus RTU, Modbus TCP
- Integrated GPRS modem, real-time clock and I/O Optical Isolation
- Standard I/O – 16 DIN, 8 DO, 8 AIN
- Ports: Ethernet,
As for the PLC side: The FX5 PLC complies with the following:
- PLC functionality – IEC61131-3 including data logger
- Din Rail Mount with I/O expansion
- Diagnostics and programming remotely
- Ports: Ethernet, RS485 (Standard), RS232 (Standard)
FX5 PLC – standard compliance in conjunction with GX Works3
Data-logging function is also included…
FX5 CPU and ME-RTU are DIN rail mountable
IOs can be extended…
Diagnostics, Debugging, Simulation and Monitoring functionalities are included….
Standard Ethernet communication connections are possible…
Communication specifications – compliance adherence…
RS-485. RS-422 Serial communication standards, port included
Ethernet communication standard, port included
A typical IO, intelligent function and communication module, adaptor and baord expansion of the PLC CPU that can be used in conjunction wiith the RTU unit, might contain requirements such as:
- FX5u-32MT/DS (PLC CPU) +
- FX5-8AD (analog input module) +
- FX5-232-BD (Serial communication board)
The Configuration Chart would look something like this:
The Purchase List would look something like this:
