IDEC microsmart pentra, Programming Manual

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FT1A S
MART
A
XIS
U
SER
’
S
M
ANUAL
FT9Y-B1382 8-15
8: B
INARY
A
RITHMETIC
I
NSTRUCTIONS
SUM (Sum)
Applicable CPU Modules
Valid Devices
For the valid device address range, see pages 6-1 and 6-2 (Basic Vol.).
When T (timer) or C (counter) is used as S1, the timer/counter current value (TC or CC) is read out.
When F (float) data type is selected, only data register can be designated as S1.
For source S2, 1 word is always used without regard to the data type.
When F (float) data type is selected and S1 does not comply with the normal floating-point format, a user program execution error will result,
turning on special internal relay M8004 and ERR LED on the CPU module.
When S2 is 0 or out of the correct value range for the selected device, a user program execution error will result, turning on special internal relay
M8004 and ERR LED on the CPU module.
For user program execution errors, see Chapter 4 “User Program Execution Errors” on page 4-21.
Valid Data Types
Quantity of Source and Destination Devices
Depending on the ADD or XOR operation for W (word) and I (integer) data types, the destination uses a different quantity of
devices.
Calculate the total of designated data, depending on the calculation option.
ADD: 
When input is on, N blocks of 16- or 32-bit data starting at device designated by S1 are
added and the result is stored to device designated by D1. S2 specifies the quantity of
data blocks.
XOR: 
When input is on, N blocks of 16-bit data starting at device designated by S1 are XORed
and the result is stored to device designated by D1. S2 specifies the quantity of data
blocks.
D1
*****
S1
*****
S2
*****
SUM(*)
ADD/XOR
FT1A-12 FT1A-24 FT1A-40 FT1A-48 FT1A-Touch
X X X X X
Device Function I Q M R T C D Constant Repeat
S1 (Source 1) First device address to calculate — — — — X X X — —
S2 (Source 2) Quantity of data blocks — — — — — — X X —
D1 (Destination 1) Destination to store results — — — — — — X — —
Calculation ADD XOR When ADD is selected, all data types can be used.
When XOR is selected, only W (word) data type can be used.
When a word device such as T (timer), C (counter), or D (data register) is designated as the source or
destination, 1 point (word or integer data type) or 2 points (double-word, long, or float data type) are
used.
W (word) X X
I (integer) X —
D (double word) X —
L (long) X —
F (float) X —
Operation W (word), I (integer) D (double word), L (long), F (float)
ADD
S1, S2: 1 word device S1, D1: 2 word devices
D1: 2 word devices S2: 1 word device
XOR S1, S2, D1: 1 word device —