ABB 3BSE018144R1 CI857 INSUM Module 10Mbit/s

ABB CI857 INSUM Gateway 3BSE018144R1 for AC 800M

Product Introduction

The 3BSE018144R1 is a dedicated INSUM communication interface for the ABB AC 800M controller. This module enables higher functionality integration between the controller and intelligent switchgear. It supports multidrop configurations, accurate time distribution, and event time stamping directly in the switchgear. Moreover, it utilizes standard Ethernet cables to achieve much longer communication distances than traditional fieldbuses. A typical closed-loop cycle takes about 500 ms, which includes one motor indication until another motor operates.

Key Technical Specifications

The ABB CI857 communicates at a fixed speed of 10 Mbit/s (highlighted in red) using the ABB INSUM protocol. It acts exclusively as a master device on the CEX-Bus. You can install up to six CI857 modules (highlighted in red) per single AC 800M controller. Each CI857 supports a maximum of 128 MCUs or other INSUM devices directly attached. Furthermore, each module handles up to two INSUM TCP/IP gateways. Every gateway then manages up to 128 INSUM devices across four LonWorks subnets. Each LonWorks subnet finally supports up to 32 devices.

Controller Compatibility and Capacity

The total device count depends on your specific AC 800M processor. For a PM864 or PM866 controller, one CPU supports up to 256 MCUs (highlighted in red) across all connected CI857 modules. For a PM861 controller, the maximum is 128 MCUs. Therefore, you should plan your device distribution carefully. This modular design gives you excellent scalability for large switchgear installations.

Environment and Certifications

This ABB 3BSE018144R1 meets demanding industrial standards. Its operating temperature ranges from 0 to +55 °C (+32 to +131 °F). Storage temperature goes from -40 to +70 °C (-40 to +158 °F). The module is G3 compliant (highlighted in red) to ISA 71.04, ensuring reliable corrosion protection. It also carries a CE mark and follows RoHS directives for EU, UAE, and CN. The protection class is IP20 according to EN60529 and IEC 529.

Mechanical Dimensions and Mounting

Installing the CI857 follows the same simple procedure as other CEX-Bus modules. You first attach the standard TP857 baseplate onto a DIN rail. Then, you click the ABB CI857 onto the baseplate. Finally, you connect an Ethernet cable to the front RJ-45 female port.

Here are the precise dimensions:

• Width: 59 mm (2.3 inches)

• Height: 185 mm (7.3 inches)

• Depth: 127.5 mm (5.0 inches)

• Weight: 700 grams (1.5 lbs) including the base

For shipping purposes, the gross weight is about 0.9 kg with proper packaging.

How the CI857 Enhances Your Switchgear Integration

Traditional I/O solutions often require large cable bundles and complex terminations. However, the CI857 changes this approach completely. It brings INSUM functionality directly into the AC 800M control environment through dedicated function blocks. You simply call these blocks from the INSUM Communication Library. Consequently, your logic program gains direct access to motor data, time stamps, and device status. This integration reduces field wiring costs significantly. Additionally, the faster 500 ms closed-loop response improves overall process control.

Frequently Asked Questions (FAQ)

1. How many CI857 modules can I install in one AC 800M chassis?
The CEX-Bus supports a maximum of six CI857 modules per controller. However, your total device count also depends on the processor type, such as PM861, PM864, or PM866.

2. What is the typical closed-loop response time with this module?
The typical response time is about 500 ms for one closed loop. This calculation assumes a 250 ms cycle time in control execution, from one motor indication until another motor operates.

3. Does the CI857 require an external power supply?
No, you do not need any external power source. The processor unit powers the ABB 3BSE018144R1 directly via the CEX-Bus. Its typical consumption is only 150 mA at 24V.

4. Can I replace a faulty CI857 without stopping the controller?
Yes, the module supports hot swap functionality. Therefore, you can remove the old CI857 and insert a new one while the AC 800M controller remains powered and running.

5. What is the maximum cable length for the Ethernet connection?
Because the ABB CI857 uses standard Ethernet technology, you can achieve much longer communication distances compared to traditional fieldbuses. For specific cable lengths, please refer to standard Ethernet specifications for 10 Mbit/s operation.