UG6951 / UG6952 / UG6954/ UG6955 / UG6956 / UG6957
SAFEMASTER PRO fieldbus modules
0265998 09.05.2017 LA 822P
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PROTOCOL DATA PACKAGE COMPOSITION
The fieldbus module exports the system status and the status and diagnostics elements of all I/Os configured on the
SAFEMASTER PRO system. Also import of eight inputs from fieldbus is possible.
The system status is shown as 1 byte:
-
Bit 0 indicates whether the SAFEMASTER PRO is online/offline
-
Bit 1 indicates the presence of diagnostics elements.
This byte is always present
.
Each input and each output (OSSD) configured on the system is associated with two information elements: status
and diagnostics.
-
Status is a binary value, 0 or 1
Each module with inputs has a number of bits corresponding to the number of physical inputs that are
present; thus modules UG6911.10, UG6913.08, UG6916.10
are associated with 1 byte,
modules
UG6913.12,
UG6913.16 with 2 bytes.
The input byte location varies according to the type of modules that are installed, in the following order:
UG6911.10, UG6916.10, UG6913.16, UG6913.08, UG6913.12
.
If several modules of the same type are installed the order follows the node number.
All
safety outputs are summarised in 1 or 2 bytes (depending on system configuration).
-
Diagnostics is a code indicating the condition of the I/O, which can be OK or indicate a problem on the I/O.
Diagnostics elements are in the form of 2 bytes which indicate the index of the I/O with the problem and
the value of the diagnostics element.
If there is more than one diagnostics element, the relative values alternate every 500 ms.
Each set of information:
-
input status,
-
input diagnostics,
-
fieldbus inputs status,
-
fieldbus probes status,
-
safety output status,
-
safety output diagnostics
can be enabled/disabled in order to control the information and thus the number of output bytes exported to the
fieldbus.
One input byte with the whished state of fieldbus inputs must always be present, also if no fieldbus inputs are used in the
electric schema.
For the fieldbuses in which the mapping position is mandatory (i.e. PROFIBUS) the input byte must be mapped before the
output bytes.
For the fieldbuses based on CANOpen the data can be accessed only via PDO. SDO access is not supported.
