Programming; Programming With Step 7 (Tia Portal); Overview Of Instructions - Siemens SIMATIC S7-1500/ET 200MP Manual

Programming

5.1

Programming with STEP 7 (TIA Portal)

5.1.1

Overview of instructions

Introduction
The TM FAST technology module is used with the instructions of the LTMFAST instruction
library.
Note
Call the LTMFAST_ControlREC instruction cyclically together with the other LTMFAST
instructions you use in the same OB, e.g. in OB1.
LTMFAST_ControlREC connects to the module and displays the status of the module. The
other LTMFAST instructions are called only as needed. The respective TM FAST is identified by
the link to LTMFAST_ControlREC.
Note
Whether you need LTMFAST instructions depends on your use case. You do not need
instructions with the following procedure:
1. Load once the desired TM FAST application into the flash memory of the module with the
commissioning editor in the TIA Portal (Page 26) or with MFCT
(https://support.industry.siemens.com/cs/ww/en/view/109773881).
2. In the hardware configuration of the module, activate the parameters "Load TM FAST
application during startup" and "Always activate TM FAST application".
TM FAST instruction library
Instruction
LTMFAST_ControlREC
(Page 31)
LTMFAST_UserReadREC
(Page 35)
LTMFAST_UserWriteREC
(Page 36)
LTMFAST_AppDownload
(Page 38)
Download
The LTMFAST instruction library is available for download from the Internet
(https://support.industry.siemens.com/cs/ww/en/view/109814902).
30
Short description
Controls the TM FAST application and provides status information.
Reads the user-defined acyclic data of the TM FAST application.
Outputs user-defined acyclic data to the TM FAST application.
Load the TM FAST application from the CPU into the flash memory of
TM FAST.
Technology module TM FAST (6ES7554-1AA00-0AB0)
Equipment Manual, 04/2023, A5E52301130-AA
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