B370-001 BCD Register Output Module
DATA SHEET
The 8370-001 receives binary data from the Micro 84’” controller and converts it to a BCD output.
It applies this output to any TTLICMOS device such as an LED or LCD display.
FEATURES
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Generates two, 3-digit channels
Popular true high BCD format
TTL and CMOS compatible
12-bit BCD resolution
Self-contained power supply
Short-circuit proof
Continuous on-line diagnostics
Removable wiring strip
Designed for harsh industrial
environments
UL listed
GENERAL DESCRIPTION
The B370-001 BCD Register is a dual chan-
nel output module for the Micro 84 Con-
troller. It receives data from two output
registers in the controller at the end of
rJ every scan. It converts the data into a
12.bit binary coded decimal (BCD) signal.
This value ranges from 000 to 999. BCD
outputs are directly proportional to output
register data.
Typically the B370 is used in applications
to interface timer, counter, sequencer, or
other register numerical data with BCD
controlled field devices. It is also used with
displays on operator control panels. Most
TTL or CMOS compatible (latched) BCD
displays will directly interface with the
B370 without the use of additional com-
ponents. Similarly, it can drive BCD field
devices such as valves, positioners, tem-
perature controllers, monitors, or other BCD
transducers.
The B370 receives numerical data from out-
put registers 4010, 4012, 4014, and 4016
from both 1K and 2K Micro 84 controllers,
and output registers 4018, 4020, 4022, and
4024 in the 2K controller. Since there are
two BCD channels per module, the 1K con-
troller supports up to two B370 modules.
The 2K controller supports up to four 8370
modules. Similar to the discrete output
modules, the first register output module
interfaces the first output registers (4010
and 4012), and each successive module in-
terfaces successive output registers.
The B370 is organized in a channel strobe
architecture: There are 12 data lines and
two strobe lines. The data lines are shared
by both receiving devices. The strobe lines
select which device is to receive data. Both
channels are strobed on each scan of the
Micro 84. The format of the output data
(BCD 1 through BCD 800) is true high
(positive). The output data is valid only
when the strobe is true low (negative).
The B370 BCD Register Output Module
easy to install. It is housed in a light-
is
=> GOULD
Electronics
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