Ropex RESISTRON RES-409, Руководство по эксплуатации, Страница: 48 / 63

Controller functions
Page 48 RES-409 Version 1
3. "Active if Tact = Tset" with latch function
The "Temperature OK" bit (bit 3) in the controller status (  section 10.4.1 "Controller status" on page 39) has
the value "1" if the actual value is inside the specified temperature tolerance band (CAN message address 7
or addresses D and E). If the actual temperature leaves the tolerance band even once while a "START"
command - or a "START" signal - is active, the value of the "Temperature OK" bit changes to "0". This value
applies until the next START command is received (or the next start signal is activated). The state of the
"Temperature OK" bit can thus also be interrogated by the higher-level PLC after a heatsealing process (latch
function, see graph below).
10.10 Temperature diagnosis (as of February 2007)
An additional temperature diagnosis can be activated in the ROPEX visualization software (  section 10.12
"Diagnostic interface / visualization software (as of February 2007)" on page 50). The RES-409 checks whether
the ACTUAL temperature is within a settable tolerance band ("OK" window) either side of the SET temperature.
The lower (
) and upper ( ) tolerance band limits are configured in the factory to -10K and +10K.
These values can be set independently of one another in the ROPEX visualization software.
If the ACTUAL temperature is inside the specified tolerance band when a START command is sent via the CAN
interface - or a 24VDC signal (START 0 or START 1) is activated - the temperature diagnosis is also activated. If
the ACTUAL temperature leaves the tolerance band, the corresponding error code (307 or 308) is indicated and
the fault output is switched (
 section 10.16 "Error messages" on page 52).
Set
"Temperature OK"
Set+ Δϑ
lower
Set+
Δϑ
upper
Actual value
Time
Time
0
1
in controller status
Set
"Temperature OK"
Set+
Δϑ
lower
Set+
Δϑ
upper
Actual value
Time
Time
0
1
in controller status
Δϑ
lowern
Δϑ
upper