Technical specifications for 900B01-0301

Description

Honeywell Analog Output, 0 to 20mA, 4 Channel (900B01-0301)
The Analog Output module provides 4 isolated 0 to 21.8 mA outputs that may be scaled by the user to any span within this
range on a per output basis.
A green blinking status LED on the module indicates when the module is being scanned. A red status LED when module or
channel diagnostics exist. A user specified failsafe value is supported to allow predictable operation in the event
communication between the module and the controller is interrupted.
Outputs are updated synchronous with IOM scan time which has minimum value is 500ms.
Item Specification
Outputs per module 4 (isolated)
Current 0 to 21.8 mA range selectable
Load resistance 750 ohms max
Galvanic Isolation 500VDC Channel to Channel.
Galvanic Isolation from logic 600 VDC
Accuracy 0.1% full scale at reference conditions
Modules per rack 10 max, up to 12 with product ambient temperature de-rating (see figure below)
Minimum current sensing > 3.5 mA per output
Calibration Data Data is stored in non-volatile memory. Redundant Factory Calibration, with
automatic rejection of Bad version.
Diagnostics Monitoring of Factory Calibration, Configuration, and +24 VDC power supply.
Output Verification Feedback to controller that indicates output current flowing.
D/A Resolution 12 bits
Fail Safe State configuration Yes
Hold Last Value
Failsafe Value
User specified scan rate It is supported by the slew rate function block.
Slew Rate is the maximum rate of change required to drive the output from full
OFF (0%-typically 0 mA or 4 mA) to full ON (100%-typically 20mA). The block will
convert this to a maximum change of the milliamp output per execution cycle of
this block.