Input acquisition
Accepts four analog inputs and three digital inputs through the selected termination assembly.
Bailey INFI 90 · Enhanced Controller
ABB Bailey IMCOM03 Mixed I/O Controller Module
A controller module that combines process-control execution with four analog inputs, three digital inputs, two analog outputs and four digital outputs. IMCOM03 is the documented direct replacement for the Network 90 NCOM03 and uses NICS01 or NTCS02 for field termination.
TypeMixed I/O controller
SystemINFI 90 / Network 90
TerminationNICS01 or NTCS02
BrandElsag Bailey / ABB
Talk to a spare-parts specialistMiya Zheng
Email for
quotationsales@amikon.cnWhatsApp+86 180 2077 6792
05 / Product Introduction
Control execution and mixed field I/O on one module
IMCOM03 reads process signals, executes the configured control strategy and drives analog and digital outputs. It is especially relevant where a single legacy controller card carries both logic and direct field connections.
Control strategy
Executes configured function blocks to monitor and control the process.
Output actuation
Provides two analog outputs and four isolated open-collector digital outputs.
Field inputs4 AI + 3 DI
→
ControllerIMCOM03 function blocks
→
Field outputs2 AO + 4 DO
06 / Technical Specifications
Power requirements and confirmed mixed-I/O capability
| Model | IMCOM03 |
|---|---|
| Product type | Enhanced mixed-I/O controller module |
| System family | Bailey INFI 90; direct replacement for Network 90 NCOM03 |
| Analog inputs | 4 channels; 1 to 5 VDC or 4 to 20 mA |
| Digital inputs | 3 channels; termination drawings cover 24 VDC and 125 VDC arrangements |
| Analog outputs | 2 channels; 1 to 5 VDC or 4 to 20 mA |
| Digital outputs | 4 isolated open-collector channels, 24 VDC |
| Digital-output maximum on current | 150 mA |
| Digital-output off current | 10 µA |
| Digital-output maximum on voltage | 1.5 V at 150 mA |
| +5 VDC load | 0.75 A / 3.75 W maximum |
| +15 VDC load | 89 mA / 1.335 W maximum |
| −15 VDC load | 74 mA / 1.11 W maximum |
| +24 VDC load | 50 mA / 1.2 W maximum |
| Termination-module option | NICS01 |
| Termination-unit option | NTCS02 |
| NICS01 cable options | NKTM01 or NKTU02 |
| NTCS02 cable | NKTU01 |
| Front status indication | Green: enabled and communicating; red: bus error; off: no power or not enabled |
02 / Termination & Wiring
Select the field interface already used by the installation
The controller supports two documented termination paths. Match the installed termination product and cable rather than selecting the controller card in isolation.
NICS01 termination module
Handles the four analog inputs, two analog outputs, three digital inputs and four digital outputs; connects with NKTM01 or NKTU02.
NTCS02 termination unit
Provides the alternative field termination arrangement and connects through NKTU01.
Signal-range match
Analog points must agree with the configured 1–5 VDC or 4–20 mA range, and digital wiring must match the installed termination design.
03 / Configuration & Commissioning
Function blocks define how the controller uses each signal
The hardware does not determine the control strategy by itself. The saved module configuration is required to restore the same input processing, logic and output behavior after replacement.
1Back up the configurationSave the complete function-block strategy and tuning values before
removing the module.
2Label every field channelKeep AI, DI, AO and DO wiring identities aligned with the
termination points.
3Verify signal typesConfirm voltage/current ranges and the digital input supply used by
the installed design.
4Commission outputs safelyProve analog and digital outputs under controlled process
conditions before returning automatic control.
04 / Diagnostics & Maintenance
The front LED gives the first controller-health clue
Use the LED together with module status and termination checks to distinguish a bus problem, disabled module, power loss or field-side fault.
Fault isolation sequence
- Green indicates the controller is enabled and communicating.
- Red identifies a bus error that should be investigated before field wiring.
- An unlit LED points to loss of power or a module that is not enabled.
- For a single bad point, check the matching termination channel and field circuit.
05 / Compatibility & Replacement
A direct replacement for Network 90 NCOM03
The original manufacturer instruction identifies IMCOM03 as the direct replacement for NCOM03. The installed termination, cable, signal ranges and saved control configuration must still be carried across correctly.
Legacy controller
NCOM03 in a Network 90 installation
Documented replacement
IMCOM03 enhanced controller module
Installation checks
Termination type, cable, field voltage, configuration and output commissioning
07 / Applications & Fault Scenarios
Operational problems that point toward IMCOM03
Several mixed I/O points fail together
Loss of multiple inputs and outputs can indicate controller, bus, power or termination-cable trouble.
Controller shows a red status LED
The module reports a bus error and the rack communication path needs investigation.
NCOM03 lifecycle replacement
A site is preparing the documented direct replacement while retaining its existing control strategy and field wiring.
08 / Official Documentation
IMCOM03 manufacturer documents
| Manufacturer | Document | Number / Version | Official link |
|---|---|---|---|
| Elsag Bailey / ABB | Controller Modules IMCOM03 and IMCOM04 — Product Instruction | I-E96-207A | View document |
| ABB | Symphony Plus Lifecycle Updates | ABB User Group presentation | View document |
09 / Supply & RFQ
Inspection, packing and quotation support
Amikon Service
InspectionPart identity and agreed test scope
Export packingAnti-static and impact-protective
DOA supportPrompt review with photos and evidence
Warranty & returnsTerms confirmed on the quotation
10 / FAQ
IMCOM03 questions from buyers and maintenance teams
What is ABB Bailey IMCOM03 used for?
It executes a configured control strategy while directly handling four analog inputs, three digital inputs, two analog outputs and four digital outputs.
Which termination hardware works with ABB Bailey IMCOM03?
The original instruction documents NICS01 with NKTM01 or NKTU02 cables, or NTCS02 with an NKTU01 cable.
What analog signal ranges does ABB Bailey IMCOM03 support?
The four inputs and two outputs support 1–5 VDC or 4–20 mA signal ranges.
What does a red LED mean on ABB Bailey IMCOM03?
A solid red front status LED indicates a bus error. A solid green LED indicates enabled communication.
Does ABB Bailey IMCOM03 replace NCOM03?
Yes. The manufacturer instruction identifies IMCOM03 as the direct replacement for the Network 90 NCOM03 controller.
What must be preserved before replacing ABB Bailey IMCOM03?
Save the function-block configuration and tuning values, identify the termination and cable, label all field channels and document each signal range.
11 / Multi-brand Spare Parts Also Requested
Independent procurement references
These models are separate sourcing references, not substitutes for IMCOM03. Compatibility and stock must be confirmed independently.
210N2272972-01268-6A-IP20311637312863-A01319828-A01332985-C013G3MX2-A4007-ZV13IF722.93IF761.93IF766.93IF771.93IF772.93IF779.9
No interchangeability, migration or replacement relationship is implied by this list.
