Ropex RESISTRON RES-5009, User Manual, Page: 36 / 98

Device functions
Page 36 RES-5009 Version 1
The TO bit can only be set via the parameter data in the CANopen/CAN master. Setting over the ROPEX visual-
isation software is not possible.
The tolerance limits can be set up to max. ±99 K.
9.3.7 Control active (RA)
The RESISTRON
®
Temperature Controller RES-5009 has successfully accepted the START request and is in the
control mode when RA bit = 1.
9.3.8 Information active (IA)
The IA bit is intended for later use and is currently not supported (always 0).
9.3.9 Standby active (SA)
The SA bit becomes active when a reset request is active. This allows the control to detect when the
RESISTRON
®
Temperature Controller RES-5009 has accepted the reset or measurement pause request and
subsequently delete the request again (“handshake” procedure).
9.3.10 Measurement interruption (MU)
The MU bit is active as long as the RESISTRON
®
Temperature Controller RES-5009 does not perform a temper-
ature measurement during the regulation phase (start request active). This can occur when the actual value is
larger than the setpoint value (setpoint exceeded). This can be used, for example, to evaluate whether measure-
ment interruptions occur during the heating impulse. This would then be an indication of excessive temperature,
which can result in a bad welding seam.
As soon as a measurement is performed again, the MU bit goes back to 0.
9.3.11 Actual value
The resolution of the actual value is 1 °C. In the event of an alarm or during calibration, the actual value is 0. The
representation of the value is protocol-specific.
Further information
• CANopen: Signed value as per CANopen specification
• ROPEX CAN:  section 11.5.5 "Querying ACTUAL temperature" on page 83
• ROPEX CAN:  section 11.6.2 "Acknowledgement message" on page 88
Setpoint
Set-
Δϑ
unten
Set-
Δϑ
oben
Actual value
Time
Time
0
1
START
Time
0
1
TO bit
a.) Temperature not OK
Setpoint
Set-
Δϑ
unten
Set-
Δϑ
oben
Actual value
Time
Time
0
1
START
Time
0
1
TO bit
b.) Temperature OK