Io Redundancy; Diagnostics, Short-Circuit To Ground; Diagnostics, Wire Break; Wire-Break Check - Siemens SIMATIC ET 200SP HA Equipment Manual

6.3.2

IO redundancy

Definition
You can configure two identical modules redundantly. To do so, plug both modules into a
redundant terminal block side by side. You can find additional information on mounting
modules in an IO redundancy configuration in the ET 200SP HA System Manual, section
"Installing", "Installing terminal block".
In IO redundancy mode, the left module is the master and the right module is the slave.
Description
Both redundant modules measure simultaneously and independently in the process. Both
redundant modules generate diagnostics, interrupts and process values.
6.3.3

Diagnostics, Short-circuit to ground

Definition
Enabling of the diagnostics if a short-circuit of the actuator supply to ground occurs.
6.3.4

Diagnostics, Wire break

Definition
When wire-break check is activated, you can enable wire-break diagnostics via the Diagnostics,
Wire break parameter for insufficient current flow on the input.
6.3.5

Wire-break check

Definition
Enable for wire break check. The I/O module can only detect a wire break if wire-break is
activated.
DI 16x24VDC HA
Equipment Manual, 10/2020, A5E39265608-AD
6.3 Explanation of the module/channel parameters
Parameters
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