Chapter 16 PLC Function ApplicationsMS300
752
Contact form compare AND*
Continuous
execution type
Continuous
execution type
Notes on operand usage: ※,:, =, >, <, <>, ≤, ≥
Refer to the function specifications table for each device in series
for the scope of device usage.
S
1
: data source device 1. S
2
: data source device 2.
This command compares the contents of S
1
and S
2
. Taking API 232 (AND=) as
an example, when the result of comparison is “equal”, this command activates;
when the result of comparison is “unequal”, this command does not activate.
The AND* command is a comparison command in series with a contact.
Conditions for
Activation
Conditions for
Inactivation
When X0 = ON and the current value of C10 is also equal to K200, then Y10 = ON.
When X1 = OFF and the content of register D0 is not equal to K-10, then Y11 =
ON and remains in that state.
When X2 = ON and the content of the 32-bit register D0 (D11) is less than
678,493, or M3 = ON, then M50 = ON.
AND=
K200 C10
DAND>
K678493 D10
M3
Y10
AND<>
K-10 D0 SET Y11
M50
X2
X1
X0