9
Data exchange with higher-level controller
Introduction
Manual – MOVISAFE
®
CSB51A Safety Option
31
9 Data exchange with higher-level controller
9.1 Introduction
Basic devices with integrated safety option support parallel operation of standard and
safe communication via a bus system or network. The safe PROFIsafe communication
can be carried out via PROFINET. For this, the basic device with integrated safety op-
tion via PROFINET must be connected to a fail-safe controller (F-PLC).
To control drive safety functions and for evaluation of the responses from the safety
option via PROFIsafe, the assignment of the individual bits within the F-process input/
output data must be taken into account.
9.2 F-periphery access of the safety option in the TIA Portal
For safe communication, the CSB51A safety option requires a total of 8bytesfor input
data and 7bytesfor output data for the PROFIsafe telegram part and occupies them
in the process image. The F user data is divided into 4 bytes input data and 3 bytes
output data.
The remaining 4bytes input data and output data are required for the telegram backup
according to the PROFIsafe specification.
9.2.1 F-periphery data component of the safety option
While compiling the configuration tool (HW Config), the system automatically gener-
ates an F-periphery data component (DB) for each safety option. The F-periphery data
block provides an interface through which you can evaluate or control variables in the
safety program.
The symbolic name consists of the invariable prefix "F", the start address of the F-peri-
phery, and the name entered in the object properties during configuration for the F-
periphery (e.g.: F00008_198).
The following table shows the F-periphery data component of the safety option:
Address Symbolic
name
(Variable)
Data
type
Function Preset-
ting
User-control-
lable vari-
ables.
DBX0.0 "F00008_198"
(PASS_ON)
BOOL 1: Activate passivation 0
DBX0.1 "F00008_198"
(ACK_NEC)
BOOL 1: Acknowledgment
required for reintegra-
tion with safety option
1
DBX0.2 "F00008_198"
(ACK_REI)
BOOL 1: Acknowledgment
for reintegration
0
DBX0.3 "F00008_198"
(IPAR_EN)
BOOL Variable for repara-
meterization (not sup-
ported by the safety
option).
0
25931075/EN – 04/2019
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