Configurable safety system SAFEMASTER PRO - Fieldbus module
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BACKWARD COMPATIBILITY (VERSION FOR UG 6911.10 FW VERSION < 5.0)
The backward compatibility mode allows the Bus module to use the "old" process image mapping, i.e.: it will
adapt to the hardware installed on the system. This allows to replace an existing Bus module without changing
the PLC program.
The backward compatibility mode works only if the Bus module is connected to an UG 6911.10 master
module. If a Bus device is set-up in backward compatibility mode and is connected to an UG 6911.12/080
the Bus module will go in fault.
System status, I/O status and I/O diagnostics are available on the cyclic process image. The process image has
a variable size depending on which modules are installed in the SAFEMASTER PRO-System. In the process
image there are subsections for each information group:
There are sections showing the status of the SAFEMASTER PRO inputs, the status of the safety outputs, the
status of the probes. The Fieldbus inputs allows the PLC to cyclically send up to 8 ON/OFF status and are used
as unsafe inputs in the SAFEMASTER PRO program.
The System status bits are described as follows:
1. Bit 0: present SAFEMASTER PRO presence
2. Bit 1: present diagnostic presence
The section for diagnostics reports significant data if the relative bit is present in the status byte. The section
dedicated to the input status has a size of 16 bytes and allows to know the status of up to 128 inputs. The priority
order of the modules is as follows:
• UG 6911.10, UG 6916.10, UG 6913.16, UG 6913.08, UG 6913.12, UG 6917.
The section dedicated to the safety outputs status has a size of 1 or 2 bytes and allows to know the status of up to
16 outputs. The priority order of the modules is as follows:
• UG 6911.10, UG 6916.10, UG 6912.02, UG 6912.04, UG 6914.04/000, UG 6914.04/008, UG 6912.04/100.
If two or more modules of the same type are installed the one with the lowest node number is shown first.
Each module with inputs has a number of bits corresponding to the number of physical inputs; thus modules
UG 6911.10, UG 6913.08, UG 6916.10 and UG 6916.12/080 will use 1 byte and modules UG 6913.12 and
UG 6913.16 2 Bytes. Modules UG 6917 uses 1 byte each.
The status of the probe is represented with 2 bytes. In fieldbus where the allocation is important (e.g. PROFIBUS,
PROFINET), the Fieldbus input bytes must be mapped before the bytes in output. If there is a fieldbus module
in the SAFEMASTER PRO system, SAFEMASTER PRO Designer will include in the report a table with the I/O
index for all inputs, fieldbus inputs, probes and safety outputs in the circuit diagram. Diagnostic elements will use
2 bytes which indicate the number of the I/O with the problem and the value of the diagnostic element. If there is
more than one diagnostic element, the relative values alternate every 500 ms.
Each set of information:
- input status,
- input diagnostics,
- fieldbus input status,
- probe status,
- safety output status,
- safety output diagnostics
The definition of the process image in the input and output is shown from the point of view of theSAFEMASTER
PRO.
Process Image in backward compatibility (version for UG 6911.10 FW Version < 5.0)
