Siemens CPU 410-5H Process Automation User Manual

I/O configuration variants
4.3 Fault-tolerant automation systems (redundancy operation)
CPU 410-5H Process Automation/CPU 410 SMART
52 System Manual, 10/2013, A5E32631667-AA
PROFIsafe takes the following measures to counteract the various possible errors when
transferring messages.
Table 4- 1 Measures in PROFIsafe for error avoidance
Measure/
Error
Consecutive number
Time expectation with
acknowledgment
Identifier for sender
and receiver
Data backup CRC
Repetition
✓
Loss
✓
✓
Insertion
✓
✓
✓
Incorrect sequence
✓
Data falsification
✓
Delay
✓
Coupling of safety-
related messages and
standard messages
(masquerade)
✓ ✓ ✓
FIFO errors (first-in-
first-out data register
for maintaining the
sequence)
✓

Siemens CPU 410-5H Process Automation Specifications

General

Brand	Siemens
Model	CPU 410-5H Process Automation
Category	Controller
Language	English