ICS Triplex T3480 Regent Guarded Analog Output Module 6-Channel 4-20mA
The T3480 is a six-channel 4–20 mA guarded analog output module for the ICS Regent system. Dual conversion paths, triplicated I/O Safetybus communication and continuous circuit comparison help prevent a single internal or system fault from changing an output unintentionally.
- Six 4–20 mA output channels
- Dual 12-bit D/A converters per channel
- 0–4095 application data range
- Single-module fail-safe operation
- Two-module fault-tolerant operation with hot replacement
- 2500 V minimum field-to-logic isolation
| Parameter | Value |
|---|---|
| Manufacturer / System | ICS Triplex / ICS Regent |
| Model / Type | T3480 guarded analog output module |
| Outputs | 6 × 4–20 mA |
| Resolution / Data Range | 12 bit / 0–4095 |
| Accuracy / Drift | 0.05% FS at 25 °C / ±50 ppm/°C |
| Load / Settling Time | 0–400 Ω / 0.1 ms to 0.1% FS |
| External Field Power | 24 VDC ±10%, 0.5 A |
| Safetybus Power | 0.8 load units |
| Operating / Storage Temperature | 0 to 60 °C / −40 to 85 °C |
| Dimensions / Weight | 320 × 32 × 257 mm / 1.6 kg |
Regent processors send triplicated commands over the I/O Safetybus. Two independent logic sections vote the data and drive separate D/A paths for every channel. One path drives the field output and the other provides a reference; both signals must agree before the output is enabled.
For fault-tolerant service, two T3480 modules are wired in parallel with STATUS IN and STATUS OUT cross-strapped. One controls the loads while the standby module tests its drive circuits. Transfer to the standby module occurs in less than 5 ms after a controlling-module failure.
- System: ICS Regent I/O chassis with triplicated I/O Safetybus.
- Software: WINTERPRET I/O Configuration Editor.
- Programming: 0–4095 corresponds to 4–20 mA. Engineering units can be converted with the analog scaling function block.
- Slot keying: upper connector position 9 and lower connector position 10.
- Fault response: the chassis fault-mode jumper selects shutdown-to-zero or hold-last-state behavior.
- Confirm the catalog number, hardware revision and Regent compatibility.
- Verify the external 24 VDC supply and available current.
- Connect every output to a load. Short the two terminals of each unused channel at the I/O chassis as specified in the manual.
- For a redundant pair, verify parallel output wiring and A/B status cross-strapping.
- Confirm slot keying, fault-mode jumper position and WINTERPRET point definitions.
The T3480 is TÜV certified as non-interfering and is intended for non-safety-critical outputs within a safety system. Process safety must not depend on this module. Annual recalibration is recommended. Calibration and latent-fault testing require an operational Regent system, WINTERPRET, precision loads and the T3322 I/O module extender.
- Second T3480: required for the documented fault-tolerant configuration.
- T3322 I/O module extender: used for calibration and latent-fault testing.
- Regent I/O chassis and WINTERPRET: required system and engineering environment.
Why can an unused channel cause a module fault?
What happens if field wiring opens during redundant operation?
How should application logic handle a redundant pair?
Can T3480 be calibrated without a Regent chassis?
The following part numbers are available for separate quotation. They are not identified as T3480 replacements, and no compatibility with the ICS Regent system is implied.
- 751659
- 05022639001
- E0X95AA
- NG4250R KCU10
- 2000-5420/1399-987
- TPU321 IC9054
- 7080-25
- ATMR5
- CTS100422 UTS-110361
- PX410-025GI
- WMZT2C25
- WMZT1DX0T
- KA34U
- FAZ-C6/1-NA-L
- BES516327A0Y
- ET20-318 ER20
- LRB526032
- AADE0375J3CRB
- SPGX0703-C1 T3000D
- 32.5-1A VC29
- WMZT1D01
- 5531088 SCD 023-009-030
- KL3045
- ZL-CBL40-S
- 7000-17121-2940500
Send the T3480 module label, required quantity, chassis information and clear photos of the installed slot. We will review the details before quotation.
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