Phoenix Contact 2814113 Programmable Temperature Transmitter

Full Model Name: MCR-T-UI, programmable temperature transmitter (custom ordered version: Pt100, 3-wire, -200~+850℃, 4-20mA output)

Status: Discontinued by manufacturer

Basic Specifications

Series: MCR-T isolated temperature transmitter, DIN rail mount

Input: Pt100 RTD, 3-wire type, measuring range -200℃ ~ +850℃

Output: 4…20 mA analog output

Power supply: 24V DC

Mounting: NS35 rail, screw connection

Functions: signal isolation, temperature transmission, linear conversion, software configurable (this variant is factory preset with fixed range)

Protection class: IP20, for cabinet installation

Cross-reference of models in the same series

2814090: MCR-T-UI (standard programmable version)

2814100: MCR-T-UI-NC

2814113: MCR-T-UI custom fixed-parameter version (Pt100 / 3-wire / -200~850℃ / 4-20mA)

Recommended replacement model (new generation Phoenix)

MACX MCR-T-UI-UP, Order No.: 2811394

Supports RTD / thermocouple / voltage / current multi-input, enhanced isolation, fully configurable; mechanically compatible for rail installation, the mainstream replacement for this series.

Important Notes

1. 2814113 is a factory pre-configured fixed-range version, not a blank programmable base module. Do not directly replace it with 2814090 because the range settings differ.
2. When purchasing second-hand spare parts, verify the input type, wiring method and output signal upon receipt.
3. Software: MCR configuration software can read and verify internal parameters (legacy MCR configuration tool).

Comparison Table: 2814113 (MCR-T-UI-E) VS 2811394 (MACX MCR-T-UI-UP)

✅ Critical Risk Reminder: It fits on the DIN rail mechanically, but terminal pinout is NOT compatible. Do not connect wiring directly without modification!

2. Standard Wiring for 2814113 (MCR-T-UI-E), Pt100 3-wire

Terminal definition per original drawing

1, 2, 3: RTD input (3-wire Pt100)

1: One end of RTD

2: Compensation wire (for 3-wire measurement)

3: The other end of RTD

5, 6: Analog 4-20mA output (5+, 6-, current loop to PLC AI)

11, 12: DC24V power supply (11=24V+, 12=0V/GND)

Remark: 2814113 is pre-configured, no DIP switch setting required. Power on and ready: -200℃ = 4mA, 850℃ = 20mA

3. Wiring of Replacement 2811394 MACX MCR-T-UI-UP (Target setting: Pt100 3-wire, -200~850℃, 4-20mA)

RTD 3-wire sensor: 4.1 /4.2 /4.3 (RTD input)

Analog current output: 2.1(OUT+), 2.2(OUT-) → PLC 4-20mA AI channel

Power supply: 1.1=24V+, 1.2=GND

2.3/2.4: Threshold relay contacts (leave unused if not required)

Strip length 7mm, tightening torque 0.5~0.6Nm, conductor 0.2~2.5mm²

4. Commissioning Procedure for On-site Replacement
5. Power off: Cut power to the module, sensor and PLC; mark and label all wire numbers
6. Remove old module from rail and clip 2811394 to the same rail position
7. Rewire according to new terminal definition; confirm the 3-wire Pt100 compensation core is not swapped
8. Prepare PACTware + MACX DTM, Phoenix USB configuration cable (2902829)
9. Power on, connect software to module and download parameters:

Sensor: Pt100, IEC60751, 3-wire

Range: Lower limit -200℃, upper limit +850℃

Output mode: 4…20mA, forward (low temperature = 4mA, high temperature = 20mA)

Filter: default 0.5s (increase value for heavy interference)

Relay: disable threshold function if not needed

6. Calibration & verification (mandatory)

Cold junction check: Compare Pt100 resistance and PLC current reading at ambient temperature

Simulation test: Use resistance box to simulate Pt100 resistance values, verify 4mA /20mA endpoints

7. Save parameters into module, power cycle and re-test to confirm parameters are retained after power loss
8. Archive parameter record, replacement complete
9. Troubleshooting Checklist (applies to both old and new modules)

Fixed 4mA output: Sensor open circuit, broken 3-wire compensation line, loose sensor terminals

Fixed 20mA output: Input short circuit, Pt100 resistance out of upper limit

Unstable / fluctuating reading: Sensor cable routed together with power cables, ground interference; check isolation and single-end shield grounding

New module cannot be detected by software: USB driver, DTM version, insufficient supply voltage, loose terminals

Phoenix Contact Temperature Transmitter Model & Order Number List

Groups: Legacy MCR-T (discontinued, including 2814113)｜MACX MCR-T (current mainstream, SIL2)｜MINI MCR‑2 compact type｜Loop-powered TS series (passive OLP)｜Explosion-proof EX version

Abbreviation guide:

RTD: Resistance temperature detector Pt100/Pt1000; TC: Thermocouple; UI: Universal input; REL: With relay alarm; UP: Universal power; PT: Push-in connection; C: Customer pre-configured

1. Legacy MCR-T Series (Discontinued, DIN screw terminal, 3-way isolation)

2. MACX MCR‑T Series (Primary replacement, active, 4-way isolation, SIL2/PL d, screw terminal)

3. MINI MCR‑2 Compact Temperature Transmitter (6.2mm slim, screw / Push-in PT)

4. MACX MCR‑TS Loop-powered Type (OLP, 2-wire loop supply, no separate 24V, HART optional)

5.Explosion-proof EX Intrinsically Safe Version (Zone 0/1/2, chemical hazardous area)

6. Matching Configuration Accessories

Preferred replacement: 2811394 MACX MCR-T-UI-UP (full function coverage, SIL2, configurable for Pt100 3-wire -200~850℃ 4-20mA)

With alarm relay requirement: 2811378

Cabinet space limited, slim type: MINI MCR‑2‑RTD‑UI (2902055)

Passive 2-wire loop power supply: TS-I-OLP (2908662)