Siemens SIMATIC ET 200AL - Overview of Instructions; Programming

High-precision input/output with Time-based IO
Function Manual, 08/2014, A5E33454822-AB
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Programming
4
4.1
Overview of instructions
Introduction
Time-based IO is used with special instructions (TIO instructions). The TIO_SYNC TIO
instruction is responsible for synchronizing all involved TIO modules and creates a unique
time basis (TIO_Time) to which all actions are referenced.
Depending on the type of TIO module, additional instructions undertake the reading in of
process input signals with associated time stamps and/or the time-controlled output of
process output signals.
Note
The TIO instructions use the time stamp functions of the TIO modules. For the other
functions of the respective TIO module, no use of instructions is necessary.
TIO instructions
Instruction
Can be used with TIO module
Short description
TIO_SYNC
(Page 34)
• CM 4xIO-Link
• TM Timer DIDQ 16x24V
• TM Timer DIDQ 10x24V
Synchronizes the TIO modules and provides the
time basis for Time-based IO
TIO_IOLink_IN
(Page 38)
• CM 4xIO-Link
Reads the input signals with time stamp from the
IO-Link Device (sensor)
TIO_DI (Page 42)
• TM Timer DIDQ 16x24V
• TM Timer DIDQ 10x24V
Detects the edges at the digital input (Timer DI)
and supplies the associated time stamp
TIO_IOLink_OUT
(Page 47)
• CM 4xIO-Link
Outputs time-controlled output signals at the
IO-Link Device
TIO_DQ (Page 52)
• TM Timer DIDQ 16x24V
• TM Timer DIDQ 10x24V
Outputs time-controlled edges at the digital
output (Timer DQ)