Burkert Type 8650 - Manual (Page 92)

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2.5.7. Functions of the actuator (connected to the pilot valve of
this channel)
• Enable.switching.cycle.counter.diagnosis.(read./.write) .
Defines whether a diagnosis message is generated when the warning limit for the switching cycle counter is
exceeded.
• Switching.cycle.counter.warning.limit.(read./.write).
Defines the value of the switching cycle counter at which a diagnosis message is generated as a warning.
• Switching.cycle.counter.reset
Triggers a reset of the corresponding switching cycle counter.
• Date.of.the.last.switching.cycle.counter.reset.(read.only)
Indicates when the switching cycle counter of the actuator was reset the last time.
• Current.number.of.switching.cycles.(read.only).
Indicates how many switching cycles the actuator has performed since the last reset of the counter.
2.5.8. Functions of the diagnosis parameter
• Group.diagnosis.(read./.write).
Indicates whether group diagnostic messages should be generated.
• Broken.wire.(read./.write)
Indicates whether a diagnosis message is generated when an output port is open.
• Short.circuit.(read./.write)
Indicates whether a diagnosis message is generated in the event of a short circuit of the output port.
2.5.9. Why separate switching cycle counters for pilot valve and
actuator?
Each electronic module provides two independent switching cycle counters (1x for pilot valve, 1x for actuator) for
each channel, as the two devices (pilot valve on the island, actuator in the field) can also be serviced or replaced
independently of each other.
Example:.
On a process valve in the field the diaphragm and stuffing box packing are replaced in line with preventive
maintenance.
• Actuator switching cycle counter can be reset;
• However, the pilot valve and its current number of switching cycles remain unaffected.
Type 8650
english
Commissioning