|
 With
having entered the new millenium, the range of Hitachi inverter &
industrial Products had a fault free transition from the year 1999 to
2000 due to its complete range being Year 2000 compliant.
Due to some
of the PLC's having real time clock's, which can be set to any date, below
is relevant archive information on our products and their year 2000 Compliance.
The
definition of Year 2000 conformity requirements
Year 2000 conformity shall mean that neither performance nor functionality
is affected by dates prior to, during and after the Year 2000.
In Particular:
- No
value for current date will cause any interruption in operation.
- Date-based
functionality must behave consistently for dates prior to, during
and after Year 2000.
- In
all interfaces and data storage, the century in any date must be specified
either explicitly or by unambiguos algorithms or inferencing rules.
- Year
2000 must be recognised as a leap year.
HITACHI Inverters
The following range of Hitachi inverters are classed as non-IT items and
do utilise micro-processor chips, however they are not dependant on a
date for correct performance and therefore did comply with the
Year 2000 conformity;
|
'VWM'
Series
|
'VWS'
Series
|
'J'
Series
|
'SJ'
Series
|
|
'VWE'
Series
|
'VWA'
Series
|
'L'
Series
|
|
HITACHI
PLC's
The following range of Hitachi PLC CPU’s do incorporate real time clocks.
These real time clocks are not used in internal operations of the PLC
and no re-programming will be required, therefore compliant with
the Year 2000 conformity;
|
Series
|
Name
|
Part
Number
|
|
Large
H Series
|
Real
time Clock Module
|
CLOCK-H
|
|
H-302
CPU
|
CPU2-03H
|
|
H-702
CPU
|
CPU2-07H
|
|
H-1002
CPU
|
CPU2-10H
|
|
H-2002
CPU
|
CPU2-20H
|
|
H200
to H252 Series
|
H-200
CPU (*)
|
CPU-02H
|
|
H-250
CPU
|
CPU21-02H
|
|
H-252
CPU
|
CPU22-02H
|
|
H-252B
CPU
|
CPU22-02HB
|
|
H-252C
CPU
|
CPU22-02HC
|
|
H
Board Series
|
Relay
Output Type (*)
|
H-20DRP
to H-64DRP
|
|
Transistor
Output Type (*)
|
H-20DTP
to H-64DTP
|
|
with
comms function (*)
|
HL-40DRP
& HL-64DRP
|
|
EM-II
Series
|
EM-II
CPU
|
CPM-E3
|
(*) Note:
From the list above the H-200 and all H Board PLC's did require the unit
to be powered up during the Millennium changeover. If this is was not
done the year became 1900 after supplying the power to the unit.
If the power could not be applied to the unit during the Millennium changeover,
the cure was to reset the clock after the changeover has occured.
The following range of Hitachi PLC's do not incorporate real time
clocks. therefore compliant with the Year 2000 conformity;
| 'P'
Series |
'D'
Series |
'E'
Series |
'EM'
Series |
| 'C'
Series |
'J'
Series |
'EB'
Series |
'EC'
Series |
HID
Ltd - Business Systems
HID completed a full internal systems review, which included a new internal
computer network system. All HID systems and products fully met the year
2000 compliance.
|
