Additional Functions - Siemens SIMATIC ET 200SP Manual

2.2.6

Additional functions

Hardware interrupts
The technology module can trigger a hardware interrupt in the CPU, for example, if a
compare event occurs, in the event of a zero crossing and/or a change of count direction
(direction reversal). You can specify which events (Page 68) are to trigger a hardware
interrupt during operation.
Diagnostic interrupt
The technology module can trigger a diagnostic interrupt in the event of a missing supply
voltage or an error at the digital outputs, for example. Select the diagnostic interrupts
(Page 66) in the device configuration freely.
Monitoring of encoder signals
The technology module monitors signals of an encoder for wire breaks, short-circuits and
offset voltages. In the case of an SSI absolute value encoder, the technology module also
monitors SSI frames for errors.
If you enable the diagnostic interrupts, the technology module triggers a diagnostic interrupt
in the event of a corresponding error.
Input filter
To suppress interference, you can configure an input filter for the RS422/TTL encoder inputs
and for the digital inputs.
Distributed application
You can use the technology module in a distributed configuration by using an interface
module in the ET 200SP distributed I/O system. The following applications are possible:
● Distributed operation in an S7-1500 system
● Distributed operation in an S7-1200 system
● Distributed operation in an S7-300/400 system
● Distributed operation in a third-party system
Technology module TM PosInput 1 (6ES7138-6BA00-0BA0)
Manual, 04/2016, A5E33015755-AC
Product overview
2.2 Functions
23