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| Part Number: | 07DC91C | Family/Series: | AC800M |
| Product Type: | PLC Communication Module | Category: | Home/DCS/DCS Systems/Profibus Module |
| Plance of Origin: | Made in USA | Product Status: | Popular Product |
07DC91C CPU spare parts ▏ABB module ▏Robot system
1. Input Channels and Transducer Supply:
- Thirty-two scanned inputs designed for 24 V.
- All channels share a common signal return.
- Transducer supply is derived from a fused common source.
- External voltage supply and fusing for groups less than 32 channels are possible, but return sides must be connectable.
- Galvanic isolation exists between the 32 channels and internal electronics.
2. Communication in Distributed Control Systems:
- Communication between different computers results in a load shared between the communication link and main CPUs.
- Consideration is crucial in designing a distributed control system.
- A key rule is to limit the frequency of information transfer to what the application truly needs.
- Event-controlled transfer, if secure, is preferred over cyclic transfer.
- Main CPU load due to communication varies with design.
- In MasterBus 300, two implementations exist in Advant Controller 450: one uses the main CPU, the other employs a dedicated slave processor on the submodule carrier (lower CPU load but higher cost).
- Similar information applies to MasterBus 300E.
3. Communication Implementations for MasterBus 300:
- Implementation 1:
- Designation: MasterBus 300 (executed in main CPU).
- Submodule carrier: SC510 (no slave processor support).
- Implementation 2:
- Designation: MasterBus 300 (executed in slave CPU).
- Submodule carrier: SC520 (with slave processor support).
- Note:
- Application is unaffected by the selection.
- Mixing MasterBus 300 (main CPU) and MasterBus 300 (slave CPU) in the same controller is not allowed.
4. Submodule and Submodule Carrier Placement:
- No restrictions on submodule and submodule carrier location in the controller subrack.
- Use a leftover slot on a submodule carrier if the carrier is suitable for the actual submodule (refer to Table 3-7 and guidelines).
- Cost-wise, submodule carrier SC510 is preferable.
- Cannot mix MasterBus 300 (main CPU) and MasterBus 300 (slave CPU) within the same controller.
5. Submodule Carrier Types and Mixing:
- Submodule Carrier SC510:
- Preferable from a cost viewpoint.
- Submodule Carrier SC520:
- Can be used but cannot mix two MasterBus 300 (main CPU) on the same SC520 carrier.
- Mixing MasterBus 300 (main CPU) and MasterBus 300 (slave CPU) within the same controller is not allowed.
6. Submodule Carrier Types for MasterBus 300E:
- Submodule Carrier SC510:
- Preferable from a cost viewpoint.
- Submodule Carrier SC520:
- Can be used but cannot mix two MasterBus 300E (main CPU) on the same SC520 carrier.
- Mixing MasterBus 300E (main CPU) and MasterBus 300E (slave CPU) within the same controller is not allowed.
By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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