Honeywell UDC 3300 manual Dmcs, RS422/485 Ascii RS422/485 Modbus, Rtu

Models: UDC 3300

1 294
Download 294 pages 16.21 Kb
Page 22
Image 22

Design (continued)

Digital Inputs (Optional) (Isolated)

Auxiliary Linear Output (Optional) (Isolated)

Communications Interface (Optional)

DMCS

RS422/485 ASCII

RS422/485 Modbus

RTU

Power Consumption

Power Inrush Current

Weight

+15 Vdc source for external dry contacts or isolated solid state contacts. The Digital Input option detects the state of external contacts for either of the two inputs. On contact closure the controller will respond according to how each digital input is configured. Opening contact causes return to previous state.

21 mA dc maximum into a negative or positive grounded load or non-grounded load of 0 to 1000 ohms.

Output range can be set anywhere between 0 mA to 21 mA, and as direct or reverse action. It can be configured to represent either Input, PV, Setpoint, Deviation, or Control output. The range of the auxiliary output, as a function of the selected variable, can be scaled. This output can be used as a second current output for current duplex outputs.

Resolution: 12 bits over 0 mA to 21 mA

Accuracy: 0.05 % of full scale

Temperature Stability: 0.0075 % F.S./°C

Load Resistance: 0 to 1000

Baud Rate: 19200 baud

Length of Link: 4000 ft. maximum

Link Characteristics: Two-wire, multi-drop proprietary protocol, 31 drops maximum

Baud Rate: 2400, 4800, 9600, or 19200 baud selectable

Parity: Odd or Even

Length of Link: 4000 ft. maximum

Link Characteristics: Two-wire or four-wire, multi-drop RS422 ASCII, 15 drops maximum or up to 31 drops for shorter link length.

Baud Rate: 2400, 4800, 9600, 19200 baud selectable

Data Format: Floating point or integer

Length of Link: 4000 ft. maximum

Link Characteristics: Two-wire, multi-drop Modbus RTU protocol, 15 drops maximum or up to 31 drops for shorter link length.

18 VA maximum (90 Vac to 264 Vac); 12 VA maximum (24 Vac/dc)

10A maximum for 4 ms (under operating conditions)

CAUTION When applying power to more than one UDC 3300, make sure that sufficient power is supplied. Otherwise, the controllers may not start up normally due to voltage drop from the inrush current.

1.3 kg (3 lb.)

10

UDC 3300 Controller Product Manual

4/00

Page 22
Image 22
Honeywell UDC 3300 manual Dmcs, RS422/485 Ascii RS422/485 Modbus, Rtu, Power Consumption Power Inrush Current Weight