Modular range of PLCs has many useful features

December 2001 PLCs, DCSs & Controllers

CHI Control was recently appointed as a value added reseller (VAR) for the DirectLOGIC range of PLCs to industry throughout sub-Saharan Africa.

The DirectLOGIC range of PLCs has proven to be a dependable, cost-effective, micromodular PLC in today's industry. The DL-05, DL-205 as well as the DL-405 series of PLCs is now available in three frame sizes ranging from 14 I/O up to as many as 3584 I/O, as standard.

The powerful Windows-based programming package facilitates programming and monitoring of an entire PLC system. There are several package options to choose from the full support PC-PGMSW, which in turn programs all of the products to a single-family support package. All the PLCs are available in either 110/220 V a.c. power supply. A 24 V d.c. power version is optional for flexibility in applications on vehicles or in remote locations where only solar power is accessible.

The DL05 PLC is offered with features not found on many brick PLCs:

* Six I/O combinations of AC, DC and relay I/O.

* Eight inputs and six outputs.

* 2K Programming memory (ladder logic).

* 4K V-memory (data registers).

* Two built-in communication ports supporting both DirectNet and MODBUS RTU.

* 4-channel, 12-bit analog input modules.

* A memory module with a built-in realtime clock and calendar.

* User-friendly Windows-based programming software.

There is a choice of two modular PLC options, the DL205 and DL405 series. If the application requires the flexibility of a modular control system the DirectLOGIC series offers one of the widest variety of I/O modules and configurations when it comes to putting a system together. The DL205 features up to 2048 I/O while the DL405 has up to 3584 I/O. Both offer a powerful set of programming instructions and large memories for ladder logic and data register. The realtime clock and calendar is built into the CPUs available for these PLCs.

Creating a system can be done quickly by selecting a base from one of the base sizes, plugging in the CPU best suited for the application and then filling the rest of the slots with I/O modules. Typical I/O modules available are, AC and DC inputs and outputs up to 32 points on the DL205 and up to 64 points on the DL405. High current (10 A) relay outputs, 12-bit and 16-bit analog input and output modules, temperature input modules like RTD and thermocouples, data communications including serial and Ethernet, twisted pair or fibre optics and many more. The remote base can be stationed up to 1200 m from the local base containing the CPU.

With both these modular PLC series a PLC system can be built for process, motion and sequence control with local and remote I/O from the large variations of discrete, analog, and speciality module types. The different systems can be linked to networks using DirectNet, MODBUS or Ethernet.

Should I/O be required for existing fieldbus-base systems like Ethernet, Profibus, DeviceNet or remote I/O, CHI Control offers a solution.

CHI Control

(011) 827 9124

[email protected]

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