Overview
Configured for fieldbus communication in the ABB AC 800M system, the ABB CI840A-EA (CI840A Communication Interface Module) provides the physical communication interface required for controller-to-I/O data exchange. The module uses the AC 800M platform architecture and supports industrial network integration through its designated communication interface.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | ABB CI840A-EA |
| Base Model | CI840A |
| Brand | ABB |
| Product Type | Communication Interface Module |
| System | AC 800M / System 800xA |
| Product Function | Fieldbus communication interface |
| Width | 54 mm |
| Height | 119 mm |
| Depth | 96 mm |
| Weight | 0.2 kg |
| Origin | Sweden |
| Mounting | DIN rail / compatible AC 800M mounting arrangement |
Industrial Control and Network Interface
The CI840A-EA operates as a communication interface within the ABB AC 800M architecture. Therefore, it handles data exchange between the controller-side communication structure and connected I/O devices.
In addition, the module follows the ABB system backplane and communication architecture rather than functioning as a standalone Ethernet switch or general-purpose serial interface. The supplied information does not specify a communication speed, protocol profile, backplane current, or firmware version.
The 54 mm width, 119 mm height, and 96 mm depth define the supplied mechanical envelope. Consequently, installers should verify enclosure clearance and mounting compatibility before installation.
Frequently Asked Questions (FAQ)
Q: What is the primary function of the ABB CI840A-EA?
A: The CI840A-EA provides a communication interface for data exchange between the ABB AC 800M control system and connected I/O devices.
Q: What are the physical dimensions of the CI840A-EA?
A: The supplied specifications list 54 mm width, 119 mm height, and 96 mm depth, with a weight of 0.2 kg.
Q: Does the supplied data specify power consumption or operating temperature?
A: No. The provided technical information does not state specific power consumption or operating temperature limits. These values should therefore be verified against the applicable ABB hardware manual.
Field Installation Guidelines
- Install the CI840A-EA in the specified AC 800M mounting arrangement and maintain adequate enclosure clearance.
- Verify the mechanical mounting surface before applying power or connecting field wiring.
- Route communication cables separately from high-voltage and high-current conductors where practical.
- Maintain appropriate cable shielding and grounding practices according to the ABB installation documentation and the selected fieldbus network.
- Inspect connectors and cable terminations for correct seating before system startup.
- Confirm the controller configuration, communication settings, and installed firmware compatibility before commissioning.
- Do not apply unverified supply voltages or wiring configurations to the module.
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