Toshiba PROSEC T1-16S PLC User's Manual - CTi Automation

7. Instructions
FUN 144 STIZ Step sequence initialize
Expression
Input −[ STIZ (n) A ]− Output
Function
When the input is ON, n devices starting with A are reset to OFF, and A is set to ON.
This instruction is used to initialize a series of step sequence. The step sequence is useful to
describe a sequential operation.
Execution condition
Input Operation Output
OFF No execution OFF
ON Execution at the rising edge of the input ON
212 T1-16S User’s Manual
6F3B0253
Operand
Name Device Register Constant Index
X Y R S T. C. XWYWRWSW T C D I J K
n Size of step
sequence
1 - 64
A Start device √
Example
When R020 is changed from OFF to ON, R400 is set to ON and subsequent 9 devices (R401
to R409) are reset to OFF.
This instruction initializes a series of step sequence, 10 devices starting with R400.
R409 R408 R407 R406 R405 R404 R403 R402 R401 R400
OFF OFF OFF OFF OFF OFF OFF OFF OFF ON
10 devices starting with R400
Note
• The STIZ instruction is used together with STIN (FUN 145) and STOT (FUN 146) instructions to
configure the step sequence.
• The STIZ instruction is executed only when the input is changed from OFF to ON.
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