metso automation PDP 400 maxDPU4F Series, Руководство по оборудованию

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Introduction
Metso Automation
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278705
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1-3
Objects are stored in a fully hierarchical database, allowing for easy cut and
paste changes and protection of control strategies.
Fully Software Backplane Compliant
With the software backplane installed, the DPU can access any exposed data
stored anywhere in a connected system as long as the connected system also
uses the SPB Protocol. Peer-to-peer transfers are rapid and transparent. No
independent transfer agent is required.
The Software Backplane uses subscription services where data is only
transmitted when changes are detected.
Sequence of Events
Each DPU includes a built-in Sequence-of-Events (SOE) recorder that can
monitor up to 512 discrete inputs. These inputs are scanned 1,000 times a
second and state changes are time stamped with 1 ms resolution and stored in
the DPU's 10,000-event buffer. Each input has a separately configurable
digital filter for contact debounce.
Distributed Processing Unit Specifications
Operating temperature range 0 to 60 degrees C
Storage temperature range
(-)25 to 70 degrees C
Relative humidity range 5 to 90% noncondensing
Power requirements
24 Vdc ±4 Vdc
Current: 0.9 A @ 24 Vdc
Powering the DPU
The DPU operates from the main redundant 24 Vdc power supply system in
the maxDNA system cabinets.
Mounting the DPU
The DPU is mounted on the Input/Output (I/O) backplane with maxPAC and
earlier Model 564 Input/Output modules.
Positioning the DPU in a Standard maxPAC Chassis
The DPU must be mounted in the left most position of the Model IOP rack to
allow for the best airflow. The Backup cable and Ethernet communications