FOXBORO P0916JT controller communication module


Loop power is provided to the field devices by a customersupplied external dc power supply.

Category: SKU: P0916JT Tag:
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TAs are UL/UL-C listed as associated apparatus for supplying non-incendive field circuits Class I; Groups A-D; Division 2 hazardous locations when connected to specified DIN rail mounted FBMs and field circuits meeting entity parameter constraints specified in DIN Rail Mounted Subsystem User’s Guide (B0400FA). They are also CENELEC (DEMKO) certified as associated apparatus for supplying field circuits for Group IIC, Zone 2 potentially explosive atmospheres. Field circuits are also Class 2 limited energy (60 V dc, 30 V ac, 100 VA or less) if customer-supplied equipment meets Class 2 limits.

The basic principle of model selection is to ensure the reliability of system operation, convenient maintenance and use, and the best performance price ratio while meeting the control function requirements. The specific factors to consider are as follows.

1. Reasonable structure
For situations where the process is relatively fixed and the environmental conditions are good (with a small amount of maintenance), an integral structure PLC is chosen, while for other situations, a modular structure PLC is chosen.

2. Equivalent in function and scale
For engineering projects with on-off control, the control speed does not need to be considered, and generally low-end machines can meet the requirements. For engineering projects that mainly rely on on-off control with a small amount of analog control, low-end machines can be selected. For engineering projects with complex control and higher requirements for control functions, such as PID calculation, closed-loop control, communication networking, etc., medium or high-end machines can be selected based on the control scale and complexity. Among them, high-end machines are mainly used for large-scale process control, distributed control systems with full PLC, and automation of the entire factory.

3. Unified model
A large enterprise should strive to achieve a unified model. Because PLCs of the same model have interchangeable modules, it is easy to purchase and manage spare parts; Its unified functions and programming methods are conducive to the training of technical personnel, the improvement of technical level, and the development of functions; Its external devices are universal and resources can be shared. With the help of an upper computer, multiple PLCs that control independent systems can be connected into a multi-level distributed control system for communication and centralized management.