Appendix2. The diffrence between DPCS and DPCS Emulator
49
Item DPCS DPCE Emulator Notes
Redundant
power supply
unit
SVP supervises the
redundant state of a
power supply.
No status checking of
power supply.
DPCS emulator do not check the status
of power supply.
Table A2.8 List of the difference (8)
Other
Item DPCS DPCE Emulator Notes
Operating
switches
Power switch
Stop mode (VPCPX2)
INZ (CPU stop)
RUN/HALT key switch HALT mode is same as DPCS power of
status. In VPCPX2, HALT mode is same
as STOP state.
When HALT mode shifts RUN mode, it
is equivalent to power on from a
long-term power failure.
Card
configuration
VPWSXn is ignored The following registration
is ignored.
VETHX1
Slave control card.
VBMPX1
VSVPX1
VPWSXn
The slot which the disregarded card was
using is same as empty slot. You can
register the control card instead of the
disregarded card.
CNU Consists of VLCU and
CNU.
CNU can be used with
current output and
pulse output.
Consists of ULCU and
marshalling unit (UMAS).
Two types of UMAS.
VLCPX1/2:UMAS1C
VLCPX1P/2P:UMAS1P
VLCPX4:UMAS2C
VLCPX4P:UMAS2P
MV power supply CNU and MVU can
have independent
power supply.
ULCU can have
independent two power
supplies.
System power is for serial bus and I/O
bus.
MV power is for SLP05 modules.
Power down
timer setting
VSVPX1 card has
rotary setting switch.
Engineering tool has time
setting menu.
DPCS emulator can have
some error in time.
DPCS emulator needs longer time to
restart controlling.
Cables Each I/O card needs
its own cable
connecting with
terminal units.
The same cable of DPCS
can be reused.
Pulse input and Analog
output need new ones.
I/O-less testing
tool
Needs extra
simulation system to
test input and/or
output.
I/O-less testing tool can
produce test input data
counts from PC.
I/O-less testing tool can update data
every 1 second at fastest. Tasks running
faster than 1 second may have
unexpected results.
WDT of VLCPXn VLCPX1-5 have WDT
output.
SLP05/06 doe not have
WDT output.
ILPU3 RUN state signal is
available.
VLCPX1-4 have independent external
WDT output.
VLCPX5 can have WDT or DO4
exclusively.
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