Honeywell manufactures a very extensive package of process controllers. The single and dual-loop controllers are microprocessor-based and modular built. They are standard equipped with different control algorithms, including on-off, PID-A, PID-B and TPSC. Thermocouple health alarms, Accutune III automatic PID-tuning and Fuzzy Logic overshoot suppression are among the possibilities. Remote setpoints, digital inputs, alarm relays and transmitter power are a few of the numerous other options.
A series setpoint programs, for example for annealing furnaces that have to run a temperature program, completes the portfolio.
UDC3500 Digital controller
- 1/4 DIN regulator (96 x 96 mm)
- 3 universal analog inputs + high level inputs
- 4 digital inputs
- Remote setpoint
- Optional setpoint programming
- Mathematical functions
- Optional transmitter power
- Dual-loop or cascade control
- Up to 5 analog and digital outputs
- Ethernet and Modbus communication
- Configuration optional via infra-red port
New Power and Flexibility The UDC3500 Universal Digital Controller packs new powerful features in the popular 1/4 DIN size. Unmatched application power includes: Infrared (IR) Configuration interface, three universal analog inputs, two loops of control and two Math Algorithms. When these are combined with the Accutune III tuning with fuzzy logic overshoot suppression, the result is price/performance leadership. Application flexibility is assured by the universal analog inputs, universal AC power supply, four digital inputs, a maximum of seven analog and digital outputs, Infrared, RS422/485 Modbus RTU or Ethernet 10Base-T TCP/IP Modbus communication protocols, simple configuration plus total field upgrade capability for any optional feature.
- 3 Universal Analog Inputs (can be configured to operate as 1 Universal and 4 High Level Inputs)
- 0.10% Accuracy
- Fast scanning rate (166ms)
- Up to 3 Analog Outputs
- Up to 5 Digital Outputs
- 4 Digital Inputs
- Math Functions
- Ethernet or RS-485 communication
- Cascade or 2 Loops of control
- Infrared PC & Pocket PC configuration
- Healthwatch Maintenance Tool
- NEMA4X and IP66 front face protection
- Multilanguage prompts
- 1/4 DIN Size
- Easily Field Upgradeable
Bright, dual displays with multilanguage prompts (in English, French, German, Spanish, or Italian) make the operator interface easy to read, understand, and operate. Simple keystrokes let you set operating parameters that meet your process control needs
The UDC3500 has up to three Universal analog inputs with a typical accuracy of +/-0.10% of full-scale input and a typical resolution of 16 bits. These can easily be configured to operate as 2 Universal and 2 High Level or as 1 Universal and 4 High Level inputs. All analog inputs are sampled six times per second (every 166 milliseconds). The first, or Process Variable input, can be one of various thermocouple, RTD, Radiamatic or linear actuations as shown in Table 1. Linear actuations have thermocouple, RTD and Radiamatic transmitter characterization capability as a standard feature. Linear actuations also have square root capability. The optional second and third inputs are isolated from each other and all other circuits and accept the same actuations as input one. These optional inputs can each be split into two high level inputs. The fourth input is enabled by first configuring Input 2 as a 20 mA or 5 Vdc input type (High Level Analog Input - HLAI). Input 4 is then available as a high level input.