Function
IP244
C79000–B8576–C861–02
5–18
Assignment within a message (numbers 0 to 12) in data block DB-A
For changes in the data words DW n to DW n + 6, it is sufficient to transfer the changes with the
command AS.
Changes in data words DW n + 7 to DW n + 15 must be transferred with the command AE
(or KS/PA). Data words DWn to DW n + 6 are also transferred.
When changing the following:
– bit 2, control byte 1
– bits 3 to 7, control byte 1 in pure Pt100 operation or
– bits 1 and 3, control byte 2
the command AE (or KS/PA) should be used.
Minimum jump (Message number) *)
SelfĆtuning parameters Heating/cooling parameters
Checkback signal for the selfĆtuning function
*) The message number (data byte DR n + 15) must be entered in the data block by the user
**) If the value for sampling time T
A
is greater than +32767, it must be converted to a hexadecimal number and given in
the format KH.
(C) Only required for cascaded control
(ST) Parameter need not be entered for selfĆtuning controllers
KF to T
A
= +32767
**)
KH to T
A
> +32767
Temperature setpoint
DW n+1
DW n
DW n+2
DW n+4
DW n+3
DW n+5
DW n+6
DW n+7
DW n+9
DW n+8
DW n+10
DW n+12
DW n+11
DW n+13
DW n+14
DW n+15
KY
KF
KF
KM
KY
KY
KF
KF
KF
KF
KM
KF
KY
KY
Command
Recommended
data format
1st positive tolerance 1st negative tolerance
2nd positive tolerance 2nd negative tolerance
Control byte 1 Control byte 2
Manual manipulated variable Limitation value (C)
Evaluation factor (C) -
Heating/cooling ratio (ST) Response value
Zone lower limit (ST)
Sampling time (ST)
Gain K
R
(St)
Integral action time T
N
(ST)
Lower setpoint
AS
AE
Derivative action time T
D
(ST)
Zone upper limit (ST) /setpoint ramping
KY
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