Rice Lake 920i Installation Manual V3.12 - Manual (Page 11)

Introduction 5
Option Cards
Table 1-4 lists the available
920i
option cards. Any of
the listed option cards can be installed in Slot 2 of the
CPU board or in any available slot of an attached
expansion board.
Expansion Boards
Table 1-5 lists the expansion boards available for the
panel mount and wall mount enclosures. The panel
mount enclosure can accommodate a single 2-card
expansion board; the wall mount enclosure supports
either a 2-card or a 6-card expansion board. Any of
the available option cards can be installed in any
available expansion board slot.
A second two- or six-card expansion board can also be
connected to the 920i , providing up to 14 option card
slots. Consult factory for details. See Section 2.5 on
page 13 for detailed information about slot and serial
port assignments for expanded system configurations.
Relay Options
8-, 16-, and 24-channel relay racks are available for all
920i
systems. Relays can be installed internally in the
wall mount enclosure; all other models require an
external enclosure for the relays. Consult factory for
details.
DC Power Supplies
Two DC power supplies are available for mobile
920i
applications:
PN 97474, 9–36 VDC supply
PN 99480, 10–60 VDC supply
Consult factory for more information.
Outdoor Display
An optional display, PN 100759, is available for
applications requiring use of the 920i in bright, sunlit
environments. Consult factory for details.
1.5 Summary of Changes
Changes to recent editions of this manual are listed
below:
Version 3.10
• Error Recovery - version 3.10.00 of the 920i
now has a very sophisticated error recovery
for the battery backed NVRAM. when a Save
and Exit is performed after a Configuration
and Calibration is performed, there is a copy
of the NVRAM that is stored in Flash for
future recovery. If the 920i is powered off at
any time and the battery is not at peak
performance, the NVRAM could come up
with corrupted data. The next time the 920i is
powered up, the NVRAM is tested for a
correct CRC checksum. If this is bad, there
will be a special screen displayed showing the
corrupt locations with directions to press
ENTER to continue. The core will rewrite to
NVRAM using the last copy of the last Save
and Exit. At this time Date and Time are also
checked. It will then open the Date/Time full
screen edit function so the operator can check
the current Date and Time. If correct, all that
is needed is an ENTER key to continue. If
incorrect, the operator can adjust the Date or
Time and then push ENTER to continue.
To ensure the latest copy of NVRAM is
available for a power up, it is recommended
that before powering down the 920i for either
overnight outage or temporary storage, the
unit should be put into setup mode and a Save
and Exit performed which will save a new
copy of the NVRAM. On Legal-For-Trade
units, if this cannot be performed, then the
system will use the last Save and Exit and all
databases and truck data should be uploaded
to a PC prior to powering the 920i down.
Option Card PN
Single-channel A/D card 68532
Dual-channel A/D card 68533
Single-channel analog output card 67602
Dual-channel analog output card 103138
Dual serial port expansion card 67604
24-channel digital I/O expansion card 67601
1MB NV RAM memory expansion card 67600
Pulse input card 67603
Ethernet communications card 71986
EtherNet/IP interface card 87803
DeviceNet interface card 68541
Allen-Bradley Remote I/O interface card 68539
Profibus DP interface card 68540
ControlNet interface card 103136
Analog input card with thermocouple input 87697
Table 1-4. Part Numbers for 920i Option Cards
Expansion Board PN
Two-card expansion board for panel mount
enclosure, slots 3–4. Includes 2-inch, 34-pin
ribbon cable and power supply cable. 71743
Two-card expansion board for wall mount
enclosure, slots 3–4. Includes 24-inch, 34-pin
ribbon cable and power supply cable. 69782
Six-card expansion board for wall mount
enclosure, slots 3–8. Includes 16-inch, 34-pin
ribbon cable and power supply cable. 69783
Table 1-5. Part Numbers for 920i Expansion Boards