What Is a Programmable Logic Controller and How Does It Work
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The Schneider Electric HMISBC is the rear controller module of the Harmony SCU range, providing 8 digital inputs, 8 digital outputs, 4 analogue inputs, and 2 analogue outputs without its own display; it pairs with a separate Harmony SCU front display module. It runs on 24 V DC with a RISC processor and connects via RS232/RS485, Ethernet TCP/IP, CANopen, and USB.
The HMISBC is a bare rear controller, it has no display of its own and is designed to pair with a separate Harmony SCU front display module to form a complete HMI-plus-controller pair. It carries the same 8 DI / 8 DO / 4 AI / 2 AO I/O set and CANopen/Modbus TCP/IP connectivity as the all-in-one HMISCU6B5, so specify it when the front module needs to be sourced or replaced independently of the controller electronics. At 0.398 kg it is also the lightest unit in this SCU family comparison.
| Range of product | Harmony SCU |
|---|---|
| Product or component type | Controller |
| Device presentation | Basic element |
| Supply | External source |
|---|---|
| [Us] rated supply voltage | 24 V (20.4…28.8 V)DC |
| Immunity to microbreaks | 10 ms |
| Inrush current | 30 A |
| Power consumption in W | 15 W |
| Local signalling | No indicator |
| Number of pages | Limited by internal memory capacity |
| Operating system | Harmony |
| Processor name | CPU RISC |
| Memory description | Flash NAND, 128 MB, Internal data storage FRAM, 128 kB, Application run DRAM, 128 MB |
| Integrated connection type | 1 serial link - RJ45 - RS232/RS485 (rate: <= 115.2 kbits/s), 1 Ethernet TCP/IP - RJ45, 1 USB 2.0 type mini B, 1 USB 2.0 type A, CANopen master bus - SUB-D 9 |
| Realtime clock | Built-in |
| Downloadable protocols | Modbus, CANopen, Modbus TCP/IP |
| Fixing mode | By 1 nut - diameter: Ø 22 mm, mounting on: 1...6 mm thick panel |
| Enclosure material | PC/PBT |
| Shock resistance | 147 m/s² for 11 ms (on DIN rail) conforming to IEC 60068-2-27, 294 m/s² for 6 ms (on panel mounting) conforming to IEC 60068-2-27 |
| Vibration resistance | +/- 3.5 mm (f = 5…9 Hz) conforming to IEC 60068-2-6, 1 gn (f = 9…150 Hz) conforming to IEC 60068-2-6 |
| Electromagnetic compatibility | Electrostatic discharge immunity test - test level: 8 kV (air discharge) conforming to IEC 61000-4-2, Electrostatic discharge immunity test - test level: 6 kV (contact discharge) conforming to IEC 61000-4-2, Susceptibility to electromagnetic fields - test level: 10 V/m (80 MHz...3 GHz) conforming to IEC 61000-4-3, Electrical fast transient/burst immunity test - test level: 2 kV (power lines) conforming to IEC 61000-4-4, Electrical fast transient/burst immunity test - test level: 1 kV (between analogue I/O and operating voltage) conforming to IEC 61000-4-4, Electrical fast transient/burst immunity test - test level: 2 kV (relay wires) conforming to IEC 61000-4-4, Electrical fast transient/burst immunity test - test level: 1 kV (Ethernet line) conforming to IEC 61000-4-4, Electrical fast transient/burst immunity test - test level: 1 kV (COM line) conforming to IEC 61000-4-4, Electrical fast transient/burst immunity test - test level: 1 kV (CAN line) conforming to IEC 61000-4-4, Surge immunity test - test level: 2 kV (power supply (common mode)) conforming to IEC 61000-4-5, Surge immunity test - test level: 1 kV (power supply (differential mode)) conforming to IEC 61000-4-5, Surge immunity test - test level: 1 kV common mode (digital I/O) conforming to IEC 61000-4-5, Surge immunity test - test level: 0.5 kV differential mode (digital I/O) conforming to IEC 61000-4-5, Conducted RF disturbances - test level: 10 V (0.15...80 MHz) conforming to IEC 61000-4-6, Conducted emission - test level: 150 kHz...30 MHz conforming to EN 55011, Radiated emission - test level: 30 MHz...1 GHz conforming to EN 55011 |
| Discrete input number | 2 for fast input (normal mode) conforming to IEC 61131-2 Type 1, 6 for digital input conforming to IEC 61131-2 Type 1 |
| Discrete input voltage | 24 V DC, discrete input logic: sink or source (positive/negative) |
| Number of common point | 1 for fast input (HSC mode), 1 for digital input |
| Discrete input current | 7.83 mA for fast input, 5 mA for digital |
| Input impedance | 2.81 kOhm, 4.7 kOhm |
| Sensor power supply | 15…28.8 V DC >= 15 V, current (state 1): >= 5 mA <= 5 V, current (state 0): <= 1.5 mA, 15…28.8 V DC >= 15 V, current (state 1): >= 2.5 mA <= 5 V, current (state 0): <= 1 mA |
| Configurable filtering time | 0 ms no filter (none), 0.004...0.04 ms bounce filter (latch/event and cumulative filter by step Nx0.5ms (64>=N>=2)), 3...12 ms integrator (none/run/stop) |
| Maximum input frequency | 100 kHz for fast input (encoder mode) - control type A/B, 100 kHz for fast input - control type single phase, 100 kHz for fast input - control type pulse/direction |
| Maximum cable distance between devices | Shielded cable: <10 m for fast input, Shielded cable: <100 m for digital input, Unshielded cable: <50 m for digital input |
| Connection pitch | 3.5 mm |
| Overvoltage protection | With overvoltage protection |
| Isolation between channels and internal logic | 500 V DC |
| Isolation between channels | None |
| Discrete output number | 2 fast output (normal mode), output logic: source, 6 digital output, output logic: source |
| Discrete output voltage | 24 V DC (voltage limit: 19.2...28.8 V) with transistor discrete output(s), 24 V DC (voltage limit: 5...30 V) with relay discrete output(s), 220 V AC (voltage limit: 100...250 V) with relay discrete output(s) |
| Input/output number | 2 for fast input, terminal(s): FI0...FI1, 2 for fast output, terminal(s): FQ0...FQ1, 6 for digital input, terminal(s): DI0...DI5, 6 for digital output, terminal(s): DQ0...DQ5 |
| Discrete output current | 2 A 4 A), response time 5 ms with opening contact for digital output, 2 A 4 A), response time 2 ms with closing contact for digital output, 300 mA, response time 2 ms for fast output (normal mode), 50 mA, response time 2 ms for fast output (PWM or PTO mode) |
| Insulation resistance | > 10 MOhm between the I/O and internal logic, > 10 MOhm between power supply and earth |
| Maximum output frequency | 100 kHz for fast output (PTO mode), 1 kHz for fast output (PWM mode) |
| Absolute accuracy error | +/- 0.1 % of full scale cyclic ratio 1...99% for fast output (PWM or PTO mode), 1 % of full scale cyclic ratio 1...99% for fast output (PWM or PTO mode), +/- 5 % of full scale cyclic ratio 10...90% for fast output (PWM or PTO mode), +/- 10 % of full scale cyclic ratio 20...80% for fast output (PWM or PTO mode), +/- 15 % of full scale cyclic ratio 30...70% for fast output (PWM or PTO mode) |
| Analogue input number | 2 for analog input, 2 for RTDs |
| Analogue input range | 0...20 mA/4...20 mA - resolution: 12 bits, input impedance: 250 Ohm (tolerance: +/- 1 %), -10...+10 V or 0...10 V - resolution: 12 bits + sign, input impedance: >= 1 MOhm |
| Analogue input type | RTD at - 200...600 °C - resolution: 16 bits temperature probe: Pt 100/Pt 1000, RTD at - 50...200 °C - resolution: 16 bits temperature probe: Ni 100/Ni 1000, RTD at - 200...760 °C - resolution: 16 bits (thermocouple J), RTD at - 240...1370 °C - resolution: 16 bits (thermocouple K), RTD at 0...1600 °C - resolution: 16 bits (thermocouple R), RTD at 200...1800 °C - resolution: 16 bits (thermocouple B), RTD at 0...1600 °C - resolution: 16 bits (thermocouple S), RTD at - 200...400 °C - resolution: 16 bits (thermocouple T), RTD at - 200...900 °C - resolution: 16 bits (thermocouple E), RTD at - 200...1300 °C - resolution: 16 bits (thermocouple N) |
| Analogue output number | 2 resistive load for 12 bits + sign |
| Analogue output range | 0...20 mA/4...20 mA (> 300 Ohm) for open-circuit, -10...10 V/0...10 V (> 2 kOhm) for short-circuit |
| Height | 50.65 mm |
| Width | 128 mm |
| Depth | 102 mm |
| Net weight | 0.398 kg |
| Standards | UL 508, FCC Class A, EN 61131-2, CSA C22.2 No 213 Class I Division 2, ANSI/ISA 12-12-01, IEC 61000-6-2 |
|---|---|
| Product certifications | cULus 508, cUL 1604 Class 1 Division 2, C-Tick, cULus CSA 22-2 No 142, GOST, KCC, UKCA, UKEX |
| Marking | CE |
| Ambient air temperature for operation | 0…50 °C |
| Ambient air temperature for storage | -20…60 °C |
| Relative humidity | 5…85 % without condensation |
| Operating altitude | <= 2000 m |
| Storage altitude | 0…10000 m |
| Maximum pressure | 800...1114 hPa |
| IP degree of protection | IP20 (rear panel) conforming to IEC 60529, IP65 (front panel) conforming to IEC 60529 |
| NEMA degree of protection | NEMA 4X front panel |
| Pollution degree | 2 conforming to IEC 60664 |
| Environmental characteristic | Corrosive gas free |
| Part number | HMISBC |
|---|---|
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| Warranty (in months) | 18 |
|---|
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 9.000 cm |
| Package 1 Width | 19.000 cm |
| Package 1 Length | 26.600 cm |
| Package 1 Weight | 870.000 g |
| Unit Type of Package 2 | S03 |
| Number of Units in Package 2 | 6 |
| Package 2 Height | 30.000 cm |
| Package 2 Width | 30.000 cm |
| Package 2 Length | 40.000 cm |
| Package 2 Weight | 5.660 kg |
| Shipping weight | 0.398 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe tariff (HS) code on file for HMISBC is 852859.
HMISBC ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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