Emerson Process Management ExpressPAC Digital Outputs, RTD Input, Digital Inputs, Analog Inputs

Product Data Document

420DS-7d / D301312X012

January 29, 2009	- Page 6	Bristol® ControlWave ExpressPAC
• Debounce: None		Digital Outputs
Accumulator:	16 bit	• Number of points: 2 dedicated,
		2 selectable DO (2 DI/DO)

RTD Input

•Input available on 14 MHz Ultra Low Power CPU only

Specifications are for the interface, only, not including the RTD probe or wiring

•RTD Conversion Accuracy: ± 0.1°C, or ± 0.1% of reading, whichever is greater

•Ambient temperature effect on RTD measurement: ±0.01°C / °C max

•Output type: solid state open drain MOSFET

•Operating voltage range: 10 - 31Vdc

•Maximum operating frequency: 20 Hz

•Current sink capability: 400 mA at 16 V (6 V system), 400 mA at 30 V (12/24 V system)

•Power consumption: Not applicable to DOs

•Long Term Stability at Constant Conditions: ±0.25ºC / month max

Digital Inputs

•Number of points: up to 4 dedicated DI and 4 selectable DI (2 DI/DO, 2 DI/HSC)

•Non-interrupting inputs

•Internally sourced, dry contact single ended inputs

•Input Voltage Range: Internally sourced dry contact input - 3.3 Vdc

•On state: >1.6 V, Off state <1.3V

•Input current :

4 DI selectable 60 µA for low power applications or 2 mA for in-plant noise immunity

2 DI/DO selectable 200 µA or 2.2 mA

2 DI/HSC selectable 200 µA or 2.2 mA

•Input filtering: 15 ms time constant (contact bounce)

•Power consumption:

All 8 inputs ON: 0.005 watt

(4 inputs @ 66 µA and 4 @ 200 µA) All 8 inputs ON: 0.075 watt

(4 inputs @ 2 mA and 4 @ 2.2 mA)

Analog Inputs

•Number points: 3 AI optional

•AI Resolution: 14 bit

•Input Configuration: Externally sourced. Single– ended inputs - jumper selectable 4–20 mA or 1–5 Vdc

•Input Impedance: 1 megΩ - 1 5 Vdc;

•250 Ω - 4-20 mA

•Input Filtering: 12 Hz

•Channel Settling Time: 600 ms to be within 0.01% of input signal

•Input accuracy:

•0.1% of span at 25ºC

•0.2% of span -40 ºC to 70 ºC

•Power consumption: Not applicable

Analog Output

•Number of Channels: 1 AO optional

•Output configurations: Selectable externally sourced 4-20 mA or 1-5 Vdc:

250 ohm with 12 V external source

650 ohm with 24 V external source

Remote Automation Solutions

Website: www.EmersonProcess.com/Remote