Compact Instrumentation System PD-N01
Hitachi compact instrumentation system, “PD-N01” is a newly conceived instrumentation system that enables advanced and complex analog control of temperature, flow rate and pressure by implementing an operation module of the distributed control system (DCS) for the programmable controller (PLC).
New concept instrumentation that utilizes the inheritance of the advantage of DCS such as powerful analog control function, rich monitoring and control software group and software assets and is compactified for the easy availability of hardware.
Feature
1．Full-scale Instrumentation System Composed of a General-purpose Computer and a PLC
The system adopts a general-purpose PC and a PLC, so it can be introduced at a lower initial cost. Further, maintenance costs can be reduced since the customer handles the maintenance and replacement of spare parts.
2．Supports Complicated Analog Control with a DCS Operating Module
Complicated loop control and sequence control is made possible with a PLC equipped with a DCS operating module. The system can achieve a high-level of continuous control and batch control, which conventional PLC instrumentation was said to be poor at.
3．Full Monitoring Operation Software and Engineering Tools are Available
A complete set of monitoring operation software necessary for handling graphics, trend and logs is available as standard. The engineering tools come equipped with the instrumentation oriented language SLC, which has a good track record in the Hitachi EX series, allowing the customer to construct a system easily.
Controller appearance
Specification
| Items | Specification | ||
|---|---|---|---|
| Number of stations | Operator's Console | 4 unit *1 | |
| Controller | 16 units | ||
| Operator's Console | Client operation control | 4 units/terminal server | |
| Printer | 4unit *2 | ||
| Monitoring/operations scale | Number of instrument display tags | Loop | 2,048 |
| Sequence | 512 | ||
| Valve/motor | 4,096 | ||
| Number of trend displays | Real time | 6,144 | |
| Batch | 2,048 | ||
| Number of graphic screens | 512 | ||
| Recipe management | Number of recipes | 200 | |
| Number of data elements/recipes | 500 | ||
| Number of categories | 4 | ||
| Logs | Number of processes (Regular report/batch report) |
4/4 | |
| Number of reports | 128 | ||
| Number of data collected | 256/process | ||
| Number of operation guides | 8,192 | ||
| Number of user alarms | 8,192 | ||
*1 Total number of POC and terminal servers
*2 Number of units per POC.
| Items | Specification | |
|---|---|---|
| Make | ESLB | |
| Control scale of controller *3 (Per unit) |
Analog input | 128 |
| Analog output | 128 | |
| Digital input | 1,000 | |
| Digital output | 1,000 | |
| Monitoring/control loop | 128 | |
| Sequence map | 80 | |
| Timer counter | 512 | |
| Valve motor | 256 | |
*3 Depending on the hardware configuration, the number of signals that can actually be used may be restricted.
