Instruments: [Question of the Week] Week 22, 2011: How to design an I/ASeries system?

The last edit to this post was made by denghl on 2012-12-21 at 21:05. To complete the design of an I/ASeries system, it is necessary to carry out the following tasks: ① Determine how many input and output points the control system has, as well as the type of signals at these points, in order to decide which models of FBM and in what quantities are needed； ②To determine the functional blocks required by the system to carry out control tasks and their processing cycles, as well as the number of control processors needed: ③ Determine the number of WP based on the operator’s management capabilities, the difficulty level of control and operation, and the staffing level in the factory ； ④Determine whether to use a communication processor ； ⑤Check if there are any other devices to connect to the I/O NodeBus in order to determine the length of the node bus ； ⑥Determine whether to use a small-system or large-system configuration based on the number of input and output points ； ⑦When defining the hardware, the necessary software must also be defined ； ⑧Perform various software configurations.

The FBM model and quantity are determined based on the number of system control points and signal types; thereafter, the number of CPs and the field bus (local or remote bus) are selected. After the hardware connections are made, the final step is configuration. How to hide replies? /hide

This post was last edited by denghl on 2012-12-21 at 21:06. First, understand the requirements from an application perspective, and then determine the components to be used and their quantities based on the capabilities of the hardware. 1. The number of input and output points and the signal types at these points determine which models of FBM will be used and in what quantities. 2. To carry out the control tasks required by the system, it is necessary to identify the functional blocks and processing cycles needed, in order to determine how many control processors (CP) are required. 3. The number of workstation processors (WP) for the human-machine interface depends on the operator’s competence, the simplicity of control and operation, as well as the staffing level in the factory. 4. The communication processor (COMMP) is mainly used to connect printers and VT100 terminals. 5. Are there any other devices that need to be connected to the I/A NodeBus? 6. If the number of input and output points is less than 300, a small-system configuration can be used; as the scale expands in the future, it can be upgraded to a large system. 7. Software: When defining hardware, the necessary software is defined simultaneously, except for digital FBM, for which separate software needs to be selected. 8. Configuration: I/A’s offers a wide range of configuration software, including the CIO Configurator, detailed display screens, display configurators, historical configurators, and more.

The last edit to this post was made by denghl on 2012-12-21 at 21:08. To complete the design of an I/ASeries system, it is necessary to carry out the following tasks: ① Determine how many input and output points the control system has, as well as the type of signals at these points, in order to decide which models of FBM and in what quantities are needed； ②To determine the functional blocks required by the system to carry out control tasks and their processing cycles, as well as the number of control processors needed: ③ Determine the number of WP based on the operator’s management capabilities, the difficulty level of control and operation, and the staffing level in the factory ； ④Determine whether to use a communication processor ； ⑤Check if there are any other devices to connect to the I/O NodeBus in order to determine the length of the node bus ； ⑥Determine whether to use a small-system or large-system configuration based on the number of input and output points ； ⑦When defining the hardware, the necessary software must also be defined ； ⑧Perform various software configurations.

In one sentence: Meet standards and customer requirements while keeping costs under control

I think it’s more of a cost issue

The I/A system hardware remains reliable

Select the best solution based on the user’s requirements

1. First, it is necessary to know the scale of production; based on the required pipelines, containers, and actual needs, a preliminary design for various instruments and equipment is carried out. 2. To ensure normal and stable operation, a preliminary control design is developed for the necessary equipment, instrument signals, control valves, and shut-off valves. Additionally, for safety reasons, appropriate safety control systems as well as designs for fire suppression or other safety measures are essential. 3. Use simulated statistical data to determine the appropriate size of the system, and ensure that other auxiliary facilities are also properly equipped. 4. Begin configuring the system according to the design requirements. There’s no need to explain the steps for configuration!