Device functions
Version 2
RES-5012
Page 29
8.6.9
Standby active (SA)
This bit is active if the RS bit is set. It shows the PLC when the controller has accepted the RS bit or the MP bit,
so that these bits can be reset again (handshake).
8.6.10 Measurement interruption (MU)
This bit is available as from firmware version 303.
This bit is active as long as the controller does not perform a temperature measurement during the regulation
phase (ST = 1). This can occur when the actual value is larger than the setpoint value (setpoint exceeded). This
can be used, for example, to evaluate whether measurement interruptions occur during the heating impulse. This
would then be an indication of excessive temperature, which can result in a bad sealing seam.
As soon as a measurement is performed again, the MU bit goes back to 0.
8.6.11 Actual value
All 16 bits of the first word must be interpreted as a signed number (twos complement notation). The resolution is
1 °C. During the calibration procedure or if a fault occurs, the actual value is 0.
8.6.12 Start temperature
The controller returns another 16-bit output word with the last start temperature. This is the temperature which was
measured just before the start command was executed (ST bit = 1). This value allows you to evaluate the cooling
process. It is only valid during the heating phase (ST bit = 1). Outside of this phase the value "-99 °C"appears, so
that it is possible to distinguish between valid and invalid values. The normal value range is between -20 °C and
500 °C.
8.6.13 Error codes
If a fault is signaled (AL bit = 1), you can determine the exact cause with the help of the error code. The error code
is contained in the third word at bit positions 0…9 (
section 8.19 "Error messages" on page 50).
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