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3.2 Function List
3.2.3 Disconnection state conversion setting function (Q68TD-G-H01 only)
3
SPECIFICATIONS
3.2.3 Disconnection state conversion setting function (Q68TD-G-H01
only)
This disconnection state conversion setting function stores specific values into measured
temperature values when disconnection is checked.
This function can identify the disconnection detection from measured temperature values.
This function is only available for channels enable temperature conversion.
(1) Overview of disconnection monitor
Figure 3.7 Overview of disconnection monitor
(a) It takes up to 11s from when line is disconnected till when disconnection is
monitored.
The measured temperature value decreases till when disconnection state is
checked.
When disconnection is checked, Disconnection state monitor flag (Un\G49) and
Disconnection state monitor signal (XC) turn on. Consequently, “ALM” LED blinks.
(b) When disconnection is checked, the value selected from “Up scale”, “Down scale”
or “Given value” in Disconnection state conversion setting (Un\G164,Un\G165) is
stored into the CH Measured temperature value (Un\G11 to Un\G18).
The values specified in Disconnection state conversion setting
(Un\G164,Un\G165) remains from when disconnection state is restored till when
normal measured temperature value is stored.
(c) After disconnection state is restored, the batch-update of measured temperature
value restarts automatically.
It takes up to 11s from when disconnection state is restored till when measured
temperature value is stored into CH Measured temperature value (Un\G11 to
Un\G18).
(d) The state of Disconnection state monitor flag (Un\G49), Disconnection state
signal (XC), and “ALM” LED remains, which means the state of disconnection
detection, remains even when disconnection state is restored. Turn on Error clear
request (YF).
(e) For operating the warning output function in disconnection and restoration, refer
to Section 3.2.4.
Normal Normal
Measured
temperature
value
Measured
temperature
value
Normal(0) Normal(0)Disconnected(1)
Disconnected
CH Measured temperature value
(Un\G11 to Un\G18)
Maximum 11s Maximum 11s
Conversion setting for
disconnection state value
Disconnection state
monitor signal (XC)
Disconnection state monitor
flag (Un\G49)
Measured
temperature value (in
a gradual decline)
Error clear request (YF)