Appendix2. The diffrence between DPCS and DPCS Emulator
47
Table A2.6 List of the difference (6)
Maintenance
Item DPCS DPCE Emulator Notes
Online hard ware
maintenance
Power off and
exchange per control
card.
Redundant configuration
module is needed.
In redundant configuration
of main unit, it is possible
to exchange the standby
side. In single
configuration of main unit,
all control stops. If power
supply for I/O is another
power suppy, last output
value is held.
In redundant configuration of I/O
modules, it is possible to exchange the
standby side. In single configuration of
I/O modules, an applicable point is
unusual and stops.
Although two SPI01 modules are used
for VPINX1, even if either breaks down,
it is regarded as the state where two
sets broke down simultaneously.
Although SDI01 and SDO01 modules
are used for VDIOX1, if SDO01 module
breaks down, data input process is
continued. But if SDI01 module breaks
down, data output process is stopped
simultaneously.
exchanging RTD Exchange
VPCPX2/VRTDX1
card.
All I/O cards halt.
Exchange SRT01
module. Corresponding
channels will halt.
Needs several minutes
until RTD count comes
stable.
SRT01 module needs relatively long
time to be stabilized when turning on.
Maintenance of
MV
Bypass unit maintain
output value when
VMVUXn is
exchanged.
Redundant configuration
of SLP05/06 module is
needed.
Bypass unit is not supported in DPCS
emulator.
I/O exchange After VLCPXn card
stop, exchange I/O.
In stop mode of
VPCPX2, exchange
I/O.
Exchange I/O module.
Version up of
firm ware
Exchange the ROM
per control card.
Download firm ware
program.
At version up, all control card stop. I/O
output values are held.
Online
maintenance of
software.
Download per control
card.
Same as left side.
SCP part
downloading
Decision Tables can
be partly updated.
Decision Tables can be
partly updated.
PCS-DS engineering tool has
downloading menu.
PCP I/O hold
downloading
I/O can be held or
initialized when
downloading.
I/O can be held or
initialized when
downloading.
Stop program Power off per control
card.
Stop the control card.
(Register no scan to
control card)
HALT mode stops all
control card.
Key switch on the panel operates
RUN/HALT.
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