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| ชื่อแบรนด์: | Westinghouse |
| เลขรุ่น: | 1C31122G01 |
| ขั้นต่ำ: | 1 |
| ราคา: | Negotiations |
The Ovation controller can directly support up to 16 independently driven branches of Ovation I/O. For local I/O, all modules reside in up to four standard cabinets, which are placed side by side. All field wiring leads to these cabinets.
| Ovation Local I/O Specifications | |
|---|---|
| Max branches per controller | 16 branches |
| Max I/O modules per branch | 8 modules |
| Max I/O modules per controller | 128 modules |
| Max local I/O bus length | 20m (60ft) |
Redundant Ovation I/O modules are installed in the same fashion as standard Ovation I/O modules, but are associated in pairs located in adjacent branches.
The module pairs exchange health, status and I/O information via their personality module interconnections. This approach allows the user to take advantage of I/O redundancy by wiring the field terminations into a single terminal block on the primary I/O base, with no special control strategy configuration required.
Redundancy is applied at I/O configuration time, and during normal operation, the Ovation system automatically reads and compares the I/O channels of both modules and determines which value to use. When a fault is detected the system automatically switches to the backup module thus increasing reliability and availability of the process inputs or outputs.
Refer to the Ovation Redundant I/O Overview data sheet for complete details.
| Specification | Value |
|---|---|
| Max. remote nodes | 8 nodes |
| Max. I/O modules per node | 64 (8 branches with 8 modules for each branch) |
| Max. I/O modules per controller | 512 modules |
| Remote I/O bus configuration | 10 BASE-FL Ethernet physical layer with a proprietary protocol |
| Remote I/O cycle time | <100 microseconds (no repeaters) |
| Standard remote communications media | Fiber optic |
| Maximum cable length for 850 nm fiber-optic media | 4 km. Distances of 6 km can be achieved with repeaters (up to two repeaters) |
