Due to the need to reduce costs, space and time in the construction of electrical cabinets, the universal wiring system for the PLC provides an efficient alternative to point-to-point wiring.
Weidmüller offers a wide range of pre-made cables and interfaces for the main PLC manufacturers:
Siemens
Schneider
Rockwell
Omron
GE-FANUC
ABB
Mitsubishi
Honeywell
The interfaces are used as transition components between the control side and the field side and are available in the screw or direct connection versions. These interfaces have a compact design and provide different functions, ie. as LEDs, fuses, isolators or relays.
The pre-made cables are supplied with the manufacturer’s connector on one end and are available in different lengths.
The advantages of this system when using standard point-to-point wiring are as follows:
minimum wiring costs.
reduced installation time.
no wiring errors.
reduced space.
clear wiring in the cabinet (cable system instead of individual wires).
the commissioning and production of wiring drawings is simplified.
Weidmüller also provides a guide for selecting the cable assembly + interface depending on the PLC card. This software can be seen on Weidmuller’s Website: http://galaxy.weidmueller.com
The analogue interfaces are equipped with SubD connectors. Thus they offer sufficient shielding for analogue signal transmission. They are also equipped with very useful isolators and test sockets for measuring voltage or current.
The digital direct input/output interfaces are supplied with flat cable connectors to facilitate connection. They are available in tension clamp or clamping yoke connection, with elements such as fuses, disconnectors or LEDs.
The pre-assembled PAC cables establish an electrical and logical connection between the PLC and the PLC interfaces. These cables consist of the following components:
Manufacturer’s PLC connector.
Multi-pole LIYY or LY YCY cable (shielded) with a cross-section of 0.14 mm² or 0.25 mm².
Flat cable connector, SUB-D or RSV, for connection to the interface.
The cables are tested automatically for their continuity and insulation to guarantee the functionality for which they have been designed.
Connectivity
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