Fast Mode - Siemens SIMATIC ET 200SP Manual

2.2.5

Fast Mode

You can use the technology module in Fast Mode for very fast detection of the numerical or
position value in case of compressed functionality. In Fast Mode, you have access to a
reduced feedback interface but not to a control interface. This means you can use a shorter
send clock for the CPU.
The range of functions of the technology module has the following additional limitations in
Fast Mode:
● Parameter change in RUN only possible with data record 128
● Count/position value range: 25 bits
● No measured value available
● No software gate available
● No complete SSI frame available
● No Capture function available
● No hardware interrupts available
● Combined error message (feedback bit) that is acknowledged automatically
To do this, select "Fast Mode" operating mode in the device configuration of the technology
module in STEP 7 (TIA Portal).
Technology module TM PosInput 1 (6ES7138-6BA00-0BA0)
Manual, 04/2016, A5E33015755-AC
Product overview
2.2 Functions
19