6
BCD Converter Input Functions
This chapter covers extra functions seen when the
SEt OPER
function is set to bc 8 or bc24. See
“Explanation of Functions” chapter
for a description of the alternative operation mode and for
functions common to each mode.
When
bc 8
or
bc24
operation mode is selected the PM4-SSI must receive its SSI input from a
model RM-BC or RM4-BC converter. These instruments convert a BCD input signal to SSI. The
input can be selected as either parallel, strobed or addressed BCD. Refer to the instruction manual
supplied with the converter for details of electrical connections and required PM4-SSI function
settings for the electrical input type being used.
The PM4 setup and scaling functions are configured through a push button sequence. Refer to the
diagram on page 10 for details on accessing setup functions.
Explanation of functions
SEt bcd
- (select input mode) This function is used to select the input type to be used. Select
PARL
for a multiparallel input, select
Strb
for a strobed input or select
Addr
for an addressed
input type.
dAtA POL
- (input data polarity) Select
Lo
for active low BCD input signals or
Hi
for active
high BCD input signals.
Strb POL
- (strobe polarity) Select
Lo
for active low strobe input or
Hi
for active high strobe
input.
bcd CodE
- (code for non BCD characters) Select the format for non BCD inputs i.e. A to F or
1010 to 1111.
0 - A to F (1010 to 1111) displays blanks
1 - A to F (1010 to 1111) displays
A
,
b
,
C
,
d
,
E
,
F
2 - A to F (1010 to 1111) displays
-
,
C
,
1
,
"
,
o
, blank
3 - A to F (1010 to 1111) displays
A
,
L
,
H
,
I
,
o
, blank
4 - A to F (1010 to 1111) displays
"
,
C
,
F
,
-
,
-
,
-
5 - A to F (1010 to 1111) displays
-
,
E
,
H
,
L
,
P
, blank
PM4SSIMAN-2.2-0
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