Introduction
Metso Automation
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278705
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1-5
Mode Switch
The Mode Switch is a 16 position rotary switch. It is read after a reset or
power up cycle of the DPU to determine its operational mode. The switch is
also read during online operation to allow setting of the mode to “Running”,
“Locked”, or “Offline”. See Chapter 3 for details.
maxNET Interface Ports
Dual Ethernet 10/100Base-T ports are provided to interface with the
maxNET communication network. The DPU communications is configured
to be 10Mbit Full Duplex, 100Mbit Full Duplex, or Auto-Negotiate. This
configuration setting is accomplished by inserting the DPU’s CompactFlash
into a reader/writer connected to the workstation and running the
DPU4FSetup utility. See Chapter 5 for details.
Network Status LEDs
These LEDs report the status of maxNET Network A and B links.
Backup Port
A 100 MB Ethernet interface is provided to pass database information to a
hot standby DPU. A custom Category 5 Ethernet cable (Part #050292) is
used to connect both DPUs via this port. A status signals are also passed
between DPUs through this port to indicate which DPU is in control.
Backup LED
This LED shows the status of redundancy for DPUs configured as a backup
pair.
Serial Port (Optional)
The optional Serial port is an eight pin RJ45 connector which supports
RS232 signal levels. This port will be used by the DPU to interface with
external PLC type equipment.
Reset Button
Pressing this button will cause the DPU to stop controlling and go through a
reset cycle. This should not be done casually as it can cause a severe
disruption to your process.
Refer to Chapter 3 for more detailed information on the use of this button.
IOM Status LED
The IOM LED shows the operational state of the IOM Processor.
Summary of Contents for PDP 400 maxDPU4F Series
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