REG 316*4 1MRB520049-Uen / Rev. G ABB Switzerland Ltd
10-3
10. SUPPLEMENTARY INFORMATION
10.1. Changes in Version 5.0 in relation to Version 4.5
10.1.1. Local display unit (LDU)
From Version V5.0, the software supports the local display unit
(see Section 5.13.).
10.1.2. New ‘LDU events’ function
The LDU events list only includes tripping levels. The new
function ‘LDU events’ enables additional events to be selected
for listing (see Section 3.6.5.).
10.1.3. New processor unit 316VC61a
All devices equipped with the local display unit (LDU) also have
the new processor unit 316VC61a; devices not equipped with
the LDU can have either the 316VC61 or 316VC61a.
Whether there is a 316VC61a in a device not equipped with a
local control and display unit can be determined using the HMI
diagnostic function. Upon selecting ‘Show diagnostic data’, one
of the lines displayed is ‘HW No.’, which in the case of
316VC61a includes the code ‘0434’:
HW-Nr.: xxxx/0434/xx
The computing capacity of the 316VC61a is 250% (compared
with 200% in the case of 316VC61).
10.2. Known software weaknesses in V5.0
10.2.1. Year 2000 conformity
Version V5.0 is influenced to a minor extent by the year 2000
problem, but the correct operation of the devices during and after
the change of the century is assured. The only shortcoming
concerns the time stamp, which retains ‘19’ in the year instead of
changing to ‘20’. All other data is correct and the events are
listed in the correct chronological order.
10.2.2. ‘LDU events’ function
The ‘LDU events’ function is not available when the HMI is
operating off-line.
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