6F3B0253
106 T1-16S User’s Manual
7. Instructions
7.1 List of instructions
The T1-16S has 21 types of basic ladder instructions and 97 types of function
instructions as listed below. The specifications of each instruction will be described in
detail later.
The tables listing these instructions are provided as a quick reference. (Note: In the
following table, italic character means operand, i.e. register, device or constant value.)
Basic ladder instructions
FUN
No. Name Expression Function Steps Speed
(µs) Page
−NO contact ANO (norm ally open) contact of
device A. 1 1. 4 - 3.3 117
−NC contact A
NC (normally closed) contact
of device A. 1 1. 4 - 3.3 118
−Transitional
contact (rising) Turns ON output for 1 scan
when input changes from OFF
to ON. 1 3.0 119
−Transitional
contact (falling) Turns ON output for 1 scan
when input changes from ON
to OFF. 1 3.0 120
−Coil A
Relay coil of device A. 1 2.3 121
−Forced coil A
Forced coil of device A. State
of device A is retained
regardless of the input state. 1 2.3 122
−Inverter I Inverts the input state. 1 1.4 - 3.3 123
−Invert coil A
I St o res the inv er se state of
input into device A. 1 2.3 124
−Positive pulse
contact A
P Turns ON output for 1 scan
when input is ON and device A
changes from OFF to ON. 1 125
−Negative pulse
contact A
N Turns ON output for 1 scan
when input is ON and device A
changes from ON to OFF. 1 126
−Positive pulse coil A
P Turns ON device A for 1 scan
when input changes from OFF
to ON. 1 127
−Negative pulse coil A
N Turns ON device A for 1 scan
when input changes from ON
to OFF. 1 128
−ON delay timer −[ A TON B ]−Turns ON output when the
time specified by A has
elapsed after the input came
ON. B is a timer register.
2 12.6 129
−OFF delay timer −[ A TOF B ]−Tur ns OFF output when the
time specified by A has
elapsed after the input came
OFF. B is a timer register.
2 12.8 130
−Single shot timer −[ A SS B ]−Turns ON output for the time
specified by A when the input
comes ON. B is a timer
register.
2 13.0 131