Depending on the importance of the process control system, individual isolation, duplexing, or other measures may be needed to increase its reliability. The D series signal conditioners offers DCS supporting input/output nests for connecting to upstream DCS input/output modules. Here we show examples of connecting a D series signal conditioner with a DCS (Yokogawa CENTUM) FIO (field network I/O) module for configurations that either have individually isolated channels, or are duplex systems.
The figure below shows an example of connecting the upstream DCS, a 16-ch FIO module (Ai 16, Ao 16, Ai 8/Ao 8) with a D series duplexing nest. By using the D series duplexing nest, it is possible to connect to the upstream DCS in the same way as connecting to the terminal board to create a duplex system. And with the signal conditioner, we increase isolation between channels and ease of maintenance.
Connection to a process control duplex DCS using a signal conditioner
JUXTA D Series Duplexing Nest
Please specify DCE-3☐*A/Z or DCP-3☐*A/Z for model of the JUXTA D series duplexing nest that supports each of the Yokogawa CENTUM's FIO modules.
| Models and names of duplexing nests | Input/outputs | Yokogawa CENTUM FIO module to be connected |
|---|---|---|
| DCE-3☐*A/Z Nest for I/O cards DCP-3☐*A/Z Nest for I/O cards (E/P mixed mounting type) |
Ai 16 | Analog input module AAV141/K4A00 (ATK4A Adapter) x 2 |
| Ao 16 | Analog output module AAV542/K4A00 (ATK4A Adapter) x 2 |
|
| Ai 8/Ao 8 | Analog input/output module AAB841/K4A00 (ATK4A Adapter) x 2 |
Aside from the above, we also have a duplexing nest that combines the voltage input module SAV144 (Ai 16) for the safety measuring system ProSafe-RS and the D series.
Products
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| Nest Type for DCS JUXTA D Series |
For the D series signal conditioners that can be installed in the above duplexing nest, see the characteristics below.
Nest Type for DCS JUXTA D Series
- High affinity with DCS systems
- Easily maintainable card format
- Mixed mounting of Electronic and Pneumatic signal conditioners
- Designed to minimize usage of aluminum electrolyte capacitors
- Standard second output
- Relaying HART communication signals (DA7, DC7)