Description
ABB ICMK14F1-L12.0 1SBP260050R1001 Remote I/O Unit
SEO Titles
- ABB ICMK14F1-L12.0 | 8DI 6 Relay Output CS31 Unit
- ABB ICMK14F1-L12.0 | 24 VDC AC31 Remote I/O
- ABB ICMK14F1-L12.0 | 8 Isolated DI and 6 Relay DO
- ABB ICMK14F1-L12.0 | Legacy AC31 Remote Unit
- ABB 1SBP260050R1001 | ICMK14F1 CS31 Remote I/O
Product Core Brief
- Model: -L12.0
- Order Number: 1SBP260050R1001
- Brand: ABB
- Family: Advant Controller 31 / AC31
- Core Function: CS31-bus extensible remote I/O
- Product Type: Remote I/O Unit
- Digital Inputs: 8 isolated inputs, 24 VDC
- Digital Outputs: 6 relay outputs, 250 VAC / 2 A
- Power Supply: 24 VDC
- Bus: CS31 system bus
- Status: Legacy / phase-out product
Product Overview
The ABB .0 1SBP260050R1001 is an extensible remote I/O unit from the ABB Advant Controller 31 family. It is designed to operate as a distributed I/O station on the CS31 system bus, allowing field-level binary signals to be connected to an AC31 control system without bringing every field wire back to the central controller. ABB documentation identifies the 24 VDC version under order number 1SBP260050R1001, with eight isolated 24 VDC inputs and six relay outputs rated at 250 VAC / 2 A.
The input side provides eight electrically isolated digital channels for 24 VDC field signals. On the output side, six relay contacts provide switching capability for discrete loads, with the documented contact rating of 250 VAC / 2 A. The unit itself uses a 24 VDC supply. This combination makes the useful in older AC31 distributed-control installations where both field-status acquisition and relay-based command outputs are required at the remote station.
From an integration standpoint, the is more than a basic digital I/O block. It is an extensible CS31 remote unit and can accept additional AC31 extension modules. ABB documentation describes the ability to expand an /I CMK14N1 remote unit with binary and analog extensions within the system’s address and data-exchange limits. This allows the original installation to combine the base unit’s eight inputs and six relay outputs with additional distributed I/O.
The part is now legacy hardware, so replacement work should focus on exact order-number matching, compatibility, installed extensions, power supply, and relay-load requirements rather than assuming that a newer ABB PLC I/O module is a direct substitute.
Product Introduction
Eight isolated 24 VDC inputs and six relay outputs give the a compact mixed-I/O footprint for legacy installations. Its interface places the unit directly in the distributed I/O layer rather than making it a standalone modern PLC controller.
For a legacy replacement, the exact order number matters. ABB lists 1SBP260050R1001 for the 24 VDC version; the related 1SBP260051R1001 unit has a 120/230 VAC power supply and should not be confused with the 24 VDC version.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | .0 |
| ABB Order Number | 1SBP260050R1001 |
| Manufacturer | ABB |
| Product Family | Advant Controller 31 / |
| Product Type | Extensible Remote I/O Unit |
| Remote Bus | system bus |
| Digital Inputs | 8 |
| Input Type | Isolated binary inputs |
| Input Voltage | 24 VDC |
| Digital Outputs | 6 |
| Output Type | Relay outputs |
| Relay Rating | 250 VAC / 2 A |
| Power Supply | 24 VDC |
| Dimensions | Approximately 120 × 93 × 84 mm |
| Weight | Approximately 400 g |
| Expansion | Supports binary/analog extension modules within system limits |
| Product Status | Legacy / phase-out |
ABB’s technical documentation gives the core I/O configuration and 24 VDC supply specification. A legacy product listing associates the exact L12.0 suffix with 1SBP260050R1001; the L12.0/L13.0 suffix convention should still be checked against the physical nameplate when ordering a replacement.
Major Features / Practical Advantages
distributed I/O
The defining interface is the system bus. The is intended to sit remotely from an central unit while exchanging I/O data over the distributed bus. This architecture reduces the need for long point-to-point field wiring back to the central controller.
For an existing plant, that matters because replacing the unit with a generic digital I/O block would not preserve the communication architecture. The replacement has to understand the system’s remote-I/O addressing and data exchange.
ICMK14F1-L12.0 1SBP260050R1001
Eight isolated 24 VDC inputs
The eight binary inputs are specified as isolated 24 VDC inputs. This is useful for remote monitoring of switches, auxiliary contacts, limit switches, status relays, and similar discrete field signals.
Isolation should not be confused with eight completely independent power supplies. The engineering question is whether the installed field wiring and commoning arrangement matches the ‘s input architecture.
Six relay outputs
The six output channels use relay contacts rather than transistor outputs. ABB documentation specifies 250 VAC / 2 A for these outputs. This allows the unit to switch a wider range of discrete loads than a small transistor output, subject to the actual load type, inrush, switching frequency, and applicable derating.
For inductive loads, the nominal 2 A contact rating should not be interpreted as a universal 2 A motor/solenoid rating. Contact protection and the actual AC/DC load characteristics still need to be reviewed.
24 VDC supply
The exact order number 1SBP260050R1001 identifies the 24 VDC-powered . ABB separately documents a 120/230 VAC-powered under 1SBP260051R1001, so power-supply configuration is an important procurement distinction.
Do not substitute the two variants simply because their I/O configuration is similar.
Expansion capability
The is an extensible remote unit. ABB’s documentation identifies binary and analog expansion modules that can be connected to or ICMK14N1 units. The exact number of extensions depends on the type of extension and the data/address limits of the system.
For example, ABB documents XC32L1 and XC32L2 extensions as compatible with extensible remote units, with different address consumption and limits for binary and analog expansion.
Mixed relay and input configuration
The combination of isolated digital inputs and relay outputs makes the useful for small remote control stations where status monitoring and discrete command outputs are needed together.
That is one reason the module appears frequently in legacy replacement inventories: removing it may affect both the address map and several different field circuits simultaneously.
Compact remote installation
The documented dimensions are approximately 120 × 93 × 84 mm, with a mass around 400 g for the 24 VDC version.
The relatively compact form factor is practical for distributed cabinets where several remote stations are installed near the equipment they control.
Related Products
- ICMK14N1 24VDC / 1SBP260052R1001 — Similar extensible remote unit, but uses six 24 VDC transistor outputs rather than the six relay outputs of the .
- 120/230VAC / 1SBP260051R1001 — Same general remote-unit family with 120/230 VAC power input and 24 VDC output power arrangement. It is not the same power-supply variant as 1SBP260050R1001.
- -M 24VDC / 1SBP260053R1001 — MODBUS-oriented version of the family rather than the standard remote unit.
- XI16E1 / 1SBP260100R1001 — Binary extension with 16 isolated 24 VDC inputs for expanding the I/O architecture.
- XO08R1 / 1SBP260101R1001 — Eight-relay binary extension with 250 VAC / 2 A outputs.
- XC08L1 / 1SBP260102R1001 — Eight-channel configurable binary extension supporting inputs or 24 VDC transistor outputs.
- XM06B5 / 1SBP260103R1001 — Analog extension providing configurable current/voltage/Pt100/Pt1000 inputs and current/voltage outputs with 12-bit resolution.
- XE08B5 / 1SBP260106R1001 — Eight-channel analog extension supporting current, voltage, Pt100, and Pt1000 inputs.
- XC32L1 — Larger configurable binary I/O extension documented for use with /I CMK14N1 remote units.
- XC32L2 — Configurable binary/analog extension for systems; its data-exchange limits differ from XC32L1.
FAQ
Can I an .0 with an ICMK14N1?
Not as a direct functional replacement. The two units have similar basic remote-I/O roles, but the uses six relay outputs, whereas the ICMK14N1 uses six 24 VDC transistor outputs. The field load and output behavior are therefore different.
What is the difference between 1SBP260050R1001 and 1SBP260051R1001?
The 1SBP260050R1001 is the 24 VDC-powered . The 1SBP260051R1001 is the related 120/230 VAC-powered version. The I/O function is similar, but the power architecture is different.
Can I hot-swap this module?
Do not assume unrestricted hot replacement. The documentation does not justify treating the as a generic hot-swappable PLC I/O card. Follow the installed system’s maintenance procedure, isolate power where required, and account for the station and connected field circuits before removal.
Does the support firmware v3.1?
The model/order number does not establish a firmware version. It is an older remote I/O unit, and firmware/software compatibility should be checked against the actual central-unit generation and programming environment rather than inferred from the L12.0 suffix.
How many expansion modules can be connected?
The answer depends on the extension type. ABB documents that extensible remote units such as the have limited address capacity for extensions. For example, ABB specifies up to three XC32L1 binary extensions or one XC32L2 extension under the documented constraints.
Are the six outputs transistor outputs?
No. The version uses six relay outputs rated at 250 VAC / 2 A. The ICMK14N1 is the related version that uses six 24 VDC transistor outputs.
Is the a standalone PLC CPU?
No. It is an extensible remote unit for the ABB Advant Controller 31 architecture. The bus connects it to the appropriate central/controller architecture. It should not be specified as a replacement for an central processing unit.
Can the relay outputs switch 250 VAC at 2 A?
The published rating is 250 VAC / 2 A. Actual application suitability still depends on the load type. Motors, solenoids, contactors, and other inductive loads can impose substantially different contact stresses than a resistive load, so the load’s inrush and switching characteristics should be checked before using the full nominal contact rating.
Does 1SBP260050R1001 include analog I/O?
No. The base configuration provides eight isolated 24 VDC binary inputs and six relay outputs. Analog capability can be added through appropriate extension modules, subject to the system’s expansion limits.
Procurement Note
For ABB .0 1SBP260050R1001 replacement, match the complete order number and not just “.” The critical checks are 24 VDC power, bus compatibility, eight isolated 24 VDC inputs, six 250 VAC / 2 A relay outputs, installed extension modules, and the existing configuration.
Pay particular attention to the related 1SBP260051R1001 and 1SBP260052R1001 variants. They look similar at the family level but have different power or output architectures. ABB’s own documentation clearly separates these versions by order number.
The L12.0 suffix also deserves a nameplate check. Legacy inventories sometimes describe the same ABB order number using L12.0 or L13.0 notation. The order number 1SBP260050R1001 is the stronger procurement identifier and is explicitly associated with the 24 VDC version in ABB documentation.
For surplus or refurbished stock, request a photograph of the actual identification label, terminal condition, and any attached expansion hardware. Verify that the offered unit is genuinely the 24 VDC relay-output configuration before approving it as a replacement.
