Omron CVM1D, Operation Manual

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234
Signed BCD data
(–1369)
S: D00300
A 3 6 9
Signed binary data
D: D00400
F A A 7
5-17-18 DOUBLE SIGNED BCD-TO-BINARY: BISL(277)
(277)
BISL C S D
Ladder Symbol
Variations
↑
BISL(277)
Operand Data Areas
C: Control word CIO, G, A, T, C, #, DM,
S: 1st source word CIO, G, A, T, C, DM,
D: 1st destination word CIO, G, A, DM,
Description When the execution condition is OFF, BISL(277) is not executed. When the
execution condition is ON, BISL(277) converts the data in specified source
words (S and S+1) from double signed BCD to double signed binary, and out-
puts the result to specified destination words (D and D+1). The format and data
range of the source word is determined by the contents of the control word (C).
Note Special I/O Units sometimes output signed BCD data. Calculations using this
data will normally be easier if it is first converted to signed binary data by means
of BINS(275) or BISL(277).
The input data format and range designations for the various control word con-
tents are as follows:.
When C = 0000 (Input Data Range: –999 9999 to 999 9999 BCD)
7 digits BCD, 28 bits
Sign bit (0: Positive; 1: Negative)
Status of 3 bits: 0
S+1 S
When C = 0001 (Input Data Range: –7999 9999 to 7999 9999 BCD)
7 digits BCD, 28 bits
Sign bit (0: Positive; 1: Negative)
S+1 S
3 bits of digit 8 (0 to 7)
When C = 0002 (Input Data Range: –999 9999 to 9999 9999 BCD)
7 digits BCD, 28 bits
S+1 S
0 to 9: Eighth digit BCD
F: Negative (–)
A to E: Error
Conversion Instructions
Section 5-17