Endress+Hauser Ceraphant PTP31B, Руководство по эксплуатации

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Ceraphant PTC31B, PTP31B, PTP33B IO-Link Description of device parameters
Hauser 63
Description The device displays warnings and faults. This is done via IO-Link using the diagnostic
message stored in the device. The purpose of all device diagnostics is solely to provide
information to the user; they do not have a safety function. The errors diagnosed by the
device are displayed via IO-Link in accordance with NE107. In accordance with the
diagnostic message, the device behaves as per a warning or fault condition:
Warning (S971, S140, C485, C431, C432):
With this type of error, the device continues to measure. The output signal does not adopt
its fault state (value in the event of an error). The main measured value and the state in
the form of the letter plus a defined number are displayed alternately (0.5 Hz) via IO-Link.
The switch outputs remain in the state defined by the switch points.
Fault (F437, S803, F270, S510, C469, F804):
With this type of error, the device does not continue to measure. The output signal adopts
its fault state (value in the event of an error). The fault state is displayed via IO-Link in the
form of the letter plus a defined number. The switch output changes to the defined state
(open). For the analog output option, an error is also signaled and transmitted via the 4 to
20mA signal. In NE43, NAMUR defines a current ≤3.6 mA and ≥21 mA as a device failure.
A corresponding diagnostic message is displayed. Current levels available for selection:
The selected alarm current is used for all errors. Diagnostic messages are displayed with
numbers and letter via IO-Link. It is not possible to acknowledge all the diagnostic
messages. The relevant message disappears if the event is no longer pending.
The messages are displayed in order of priority:
• Highest priority = first message displayed
• Lowest priority = last message displayed
Options • Min: Lower alarm current (≤3.6 mA)
• Max: Upper alarm current (≥21 mA)
Factory setting Max or as per order specifications
Switch point value / Upper value for pressure window, output 1 (SP1 / FH1)
Switchback point value / Lower value for pressure window, output 1 (RP1 / FL1)
Navigation Display: SP1 / FH1 / RP1 / FL1 → Switch point value.../Switchback point value...
IO-Link: Parameter → Application → Switch output (OU1) → Switch point value.../
Switchback point value...
Prerequisite The following functions are available only if a hysteresis function has been configured for
the switch output (output 1 (Ou1)).
Description of behavior of
SP1 / RP1
The hysteresis is implemented using the SP1 and RP1 parameters. Since the parameter
settings depend on one another, the parameters are described all together.
The switch point "SP1" and switchback point "RP1" can be defined with these functions (e.g.
for pump control). When the set switch point "SP1" is reached (with increasing pressure),
an electrical signal change takes place at the switch output. When the set switchback point
"RP1" is reached (with decreasing pressure), an electrical signal change takes place at the
switch output. The difference between the value of switch point "SP1" and the value of
switchback point "RP1" is known as the hysteresis. The configured value for the switch
point "SP1" must be greater than the switchback point "RP1"! A diagnostic message is
displayed if a switch point "SP1" is entered that is ≤ the switchback point "RP1". While it is
possible to make this entry, it does not take effect in the device. The entry must be
corrected!