Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
3. Key Technical Specifications
Confirm each line against the OEM datasheet and the label on your existing module before ordering. The AC 800M controller firmware revision governs compatibility.
| Parameter | Value |
|---|---|
| Model | CI871 |
| Order Code | Verify on the module label — the order code suffix governs the build |
| Brand | ABB |
| Product Family | AC 800M / System 800xA |
| Module Type | Profinet IO communication module |
| Protocol | Profinet IO (controller role) — verify firmware for device role |
| Ethernet Ports | 2 x RJ45 (integrated switch) |
| Ethernet Speed | 10/100 Mbit/s, full duplex — verify on the port label |
| Max IO Devices | Verify with OEM datasheet — confirm the supported device count for your firmware |
| Max IO Data | Verify with OEM datasheet |
| Update Rate | Verify — typically 1 ms to 512 ms depending on configuration |
| Isolation | Ethernet to logic side — verify isolation voltage |
| Backplane Interface | AC 800M backplane — verify slot assignment and rack compatibility |
| Compatible Controllers | AC 800M PM8xx series — verify controller model and firmware revision |
| Configuration Software | Control Builder M — verify supported version |
| Status Indicators | Module status, link/activity, fault — verify LED arrangement |
| Power Supply | From AC 800M backplane — verify voltage rail and current draw |
| Power Consumption | Verify with OEM datasheet |
| Operating Temperature | 0 °C to +60 °C (typical — verify for your cabinet) |
| Storage Temperature | –40 °C to +85 °C (typical — verify) |
| Humidity | 5% – 95% RH, non-condensing |
| Mounting | AC 800M rack slot, plug-in module |
| Weight | Verify with OEM datasheet |
| Certifications | CE, UL, cUL — verify on the specific unit’s label |
4. Product Introduction
The ABB CI871 is a Profinet IO communication module for the AC 800M controller and the System 800xA platform. It plugs into the AC 800M rack and provides a Profinet IO controller interface, letting the AC 800M CPU exchange cyclic and acyclic data with Profinet IO devices — remote I/O racks, drives, valve islands, and intelligent field devices. The module handles the protocol stack internally, so the controller’s application program sees the remote data as ordinary I/O.
The engineering value is the integration path. Profinet is the dominant Ethernet-based fieldbus in the European process and discrete manufacturing market, and the CI871 lets a plant with an installed AC 800M base connect to that device ecosystem without a gateway or a protocol converter. The two RJ45 ports form an integrated switch, so the module can sit in a line topology without an external switch. In my experience, that reduces panel space and the number of failure points in a Profinet segment.
Two things decide whether a swap works. First, the controller firmware revision. The CI871 requires a minimum firmware level on the AC 800M CPU, and an older CPU may not recognize the module. Second, the Control Builder M project version. The module’s hardware definition must exist in the project’s device library, or you cannot add it to the I/O configuration.
CI871
5. Application Scenarios & Field Experience
Part 1 – Narrative Paragraph
The problem this module solves is the gap between an installed AC 800M base and a field device that speaks Profinet. A plant runs an 800xA system on an AC 800M controller, and a new skid arrives with Profinet IO devices — a remote I/O island, a drive with a Profinet card, or a valve manifold. Without a native Profinet interface, the options are a gateway, a hardwired signal exchange, or a controller replacement. The CI871 puts a Profinet IO controller directly on the AC 800M backplane. I have used this module to bring new skids into an 800xA system with no change to the existing control program beyond adding the device definitions and mapping the I/O. The module handles the Profinet stack, the device diagnostics, and the cyclic data exchange.
Part 2 – Numbered List (Application Scenarios)
- Oil & Gas – Skid Integration on an 800xA System – A plant with an AC 800M controller needed to integrate a new compressor skid with Profinet IO remote I/O. The CI871 provided the controller interface, and the skid data appeared in the 800xA operator station as standard I/O points.
- Power Generation – Balance of Plant Devices – Used to connect Profinet IO valve islands, motor starters, and intelligent field devices to the AC 800M controller. The integrated two-port switch allows a line topology that reduces cabling in a crowded electrical room.
- Chemical – Batch Plant Device Network – The connects the AC 800M controller to a Profinet IO network of drives and remote I/O. The cyclic data exchange carries the setpoints and the feedback, and the device diagnostics report a failed device to the operator station.
- Water Treatment – Remote I/O Island Integration – Used where the plant’s AC 800M system needs to reach a remote I/O island over an Ethernet-based fieldbus. The module’s diagnostics help isolate a failed device or a cable fault to a specific segment.
Part 3 – Short Field Story
A refinery in the Midwest had an AC 800M controller running a unit on the 800xA platform. The plant wanted to add a new analyzer skid with a Profinet IO interface, but the existing system had no Profinet module. The integrator quoted a gateway and a new network segment. We supplied a module and confirmed the AC 800M firmware revision supported it. The plant’s technician installed the module, added the device definition in Control Builder M, and mapped the I/O. The skid was online the next shift, and the gateway was avoided entirely.
6. Standard Operating Procedure (SOP) for Quality Control
- Visual & Origin Inspection – We verify the ABB marking, the model string, and the date code. We inspect the backplane connector and the RJ45 ports for bent pins or corrosion. A module with a cracked connector shroud or evidence of rework is rejected.
- Revision and Firmware Documentation – We read and photograph the full model string, the firmware revision, and the order code on the module label. That record ships with the module so you can compare it against the unit you are replacing.
- Power-Up Self-Test – The module is inserted into a known-good AC 800M test rack. We verify it initializes without a backplane fault and that the controller recognizes the module type.
- Ethernet Port and Switch Test – We connect two test partners to the RJ45 ports and run a throughput test to verify the integrated switch passes 100 Mbit/s full-duplex traffic without packet loss.
- Profinet Communication Test – The module is connected to a Profinet IO test network with a known device. We verify cyclic data exchange at the configured update rate and confirm the module reports device diagnostics correctly.
- Diagnostics Buffer Test – We simulate a device dropout and verify the module logs the fault and the controller receives the diagnostic message.
- Connector Integrity Test – We mate and unmate the backplane connector and the RJ45 connectors ten times to confirm the contacts do not deform and the retention mechanism holds.
- ESD-Safe Packaging – The module is wrapped in anti-static film, seated in a conductive foam insert with the connectors protected, and packed in a double-wall carton with static warning labels.
7. Frequently Asked Questions (FAQ)
Q1: Will the work with my AC 800M controller?
A: Only if the controller firmware revision supports the module. The requires a minimum firmware level on the AC 800M CPU, and an older CPU may not recognize the module at all. Check your controller’s firmware revision against the OEM compatibility list before you order. If you send us the CPU model and firmware revision, we can confirm the match.
Q2: How many Profinet IO devices can the support?
A: That depends on the firmware revision and the update rate you configure. I cannot confirm the exact device count from the model number alone. Verify the supported device count against the OEM datasheet for your firmware version. The practical limit is usually determined by the cyclic data load on the controller, not just the module’s device table.
Q3: What is the warranty on this module?
A: We offer a 12-month warranty from the ship date. It covers communication processor failure, backplane connector failure, and Ethernet port failure under normal operating conditions. It does not cover damage from hot-swapping the module with the rack energized, bent pins from forced insertion, or ESD damage from handling without a wrist strap. We test every module in a live AC 800M rack and on a Profinet network before it ships.
Q4: Do you have this in stock?
A: AC 800M inventory moves and varies by revision. Confirm availability before you plan an outage. If we are out of the revision you need, we will tell you what we actually have rather than quote a date we cannot hold.
Q5: Any installation pitfalls I should watch for?
A: Four. First, power down the rack before inserting or removing the module — AC 800M modules are not hot-swap capable in most configurations. Second, verify the controller firmware supports the module before you install it. Third, confirm the Control Builder M project version includes the hardware definition — without it, you cannot add the module to the I/O configuration. Fourth, after the swap, verify the Profinet devices are online and the cyclic data is correct before you return the process to service. A module that powers up is not necessarily exchanging data with the field.
