CI857K01
INSUM Ethernet Interface · 3BSE018144R1
Lifecycle note: Retain the INSUM application and gateway configuration. Hot-swap support does not provide line or module redundancy; plan the replacement accordingly.
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+86 153 5940 8275INSUM Ethernet Interface · AC 800M
ABB CI857K01, article number 3BSE018144R1, provides the CI857 INSUM Ethernet interface for AC 800M integration. The interface acts as an INSUM master and links the controller to motor-control and switchgear devices through INSUM TCP/IP gateways. Control applications access these functions through the INSUM Communication Library. The published Ethernet speed is 10 Mbit/s, with an eight-pin female RJ-45 connector; the interface is not a general-purpose substitute for a different AC 800M communication protocol.
The capacity limits apply at several levels: up to 128 INSUM devices per CI857, up to two gateways per CI857, four LonWorks subnets per gateway and up to 32 devices per subnet. Controller-level limits remain separate, with ABB listing 256 devices for PM864 or PM866 and 128 for PM861. The module draws power through the processor CEX bus, typically 150 mA at 24 V, without an additional external module supply. ABB specifies no line or module redundancy, even though hot swap is supported.
For an installed-system replacement, preserve the INSUM gateway topology, device mapping and control-library configuration before changing hardware. Check the processor family, CEX-bus resource allocation and switchgear communication path as one integration package. MRO acceptance should reconcile the CI857K01 sales identity and 3BSE018144R1 article number with the supplied interface and base, while recording the offered unit’s revision and connector condition. Use the site-approved maintenance procedure to manage temporary loss of communication, and confirm operating conditions within 0 to +55 °C and IP20 cabinet protection.
| Manufacturer / model | ABB / CI857K01; CI857 communication interface |
|---|---|
| Article number | 3BSE018144R1 |
| Protocol / role | ABB INSUM / Master |
| Ethernet speed / connector | 10 Mbit/s; RJ-45 female, 8-pin |
| CEX bus capacity | Maximum 6 CI857 interfaces per AC 800M |
| Devices per interface | Maximum 128 MCUs or other INSUM devices per CI857 |
| Gateways per interface | Maximum 2 INSUM TCP/IP gateways per CI857 |
| Gateway / subnet limits | 128 devices per gateway; 4 LonWorks subnets per gateway; 32 devices per subnet |
| Controller-level device limits | PM864 or PM866: 256 devices maximum; PM861: 128 devices maximum |
| Power source / consumption | Processor CEX bus supply; typical 150 mA at 24 V; no additional external module supply |
| Redundancy / replacement | Line redundancy: No; module redundancy: No; hot swap: Yes |
| Operating / storage temperature | Operation 0 to +55 °C; storage −40 to +70 °C |
| Protection / corrosion class | IP20 to EN60529 / IEC529; G3 to ISA71.04 |
| Dimensions / mass including base | 59 × 185 × 127.5 mm (W × H × D); 700 g |
Preserve INSUM gateway assignments, subnet device maps and the AC 800M communication-library configuration before replacement.
No. ABB permits up to two gateways per CI857, but the interface limit remains 128 MCUs or other INSUM devices. The 128-device figure per gateway must not be added twice to override the CI857 ceiling. Allocate devices across gateways while respecting both limits.
No. Six is the maximum interface count on the CEX bus, not a multiplier for the controller-level INSUM capacity. ABB lists a PM861 limit of 128 devices and PM864/PM866 limits of 256. Size the project against the relevant processor ceiling as well as each interface limit.
The example covers an indication from one motor through control execution to operation of another, assuming a 250 ms control cycle. It is not a guaranteed Ethernet latency or a universal response time. Validate the actual gateway, network and application cycle when defining the plant’s response requirement.
ABB separately marks hot swap as supported and both line redundancy and module redundancy as unsupported. Treat replacement as a planned communication interruption unless the overall system design provides an independently verified alternative path; do not describe the interface itself as redundant.
No. CI857 implements ABB INSUM integration and is used with the INSUM Communication Library and compatible gateways. Connector shape and Ethernet cabling do not establish protocol, function-block or device-model equivalence. The replacement requirement must retain the INSUM interface identity.
The published structure permits four LonWorks subnets per INSUM TCP/IP gateway and up to 32 devices on each subnet. Document device assignments at subnet, gateway and CI857 levels so that a valid subnet count does not conceal an exceeded upstream device limit.
Reconcile the full 3BSE018144R1 article number and the included base/interface scope with the purchase requirement. ABB’s hardware selector identifies CI857 under this article and quotes a mass including the base. Ask for unit and package evidence rather than inferring the delivered scope from an abbreviated model name.
The ABB selector allows use with an HI controller, but that entry alone does not establish a safety integrity level for the INSUM communication path or an application safety function. Retain the approved safety architecture and its required certification evidence; do not derive a safety rating from controller compatibility.
Send the model, complete part number, quantity, destination and nameplate photo. We will verify identification details before confirming availability and lead time.
Official PDF: ABB AC 800M Communication Interfaces. File size is below 1 MB; verify the exact installed hardware and configuration before use.
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