Data Exchange with the Central Controller
4–49
IP244
C79000–B8576–C860–02
Byte 27 Main control byte 1
Yes
No
Reading in of 30/60 measured values via
channel 13, measured value acquisition
and monitoring at channel 14 (special
function)
Yes
No
Yes
No
Yes
No
Reading in and out of the control
parameters also with selfĆtuning and
separate parameter sets for heating and
cooling
Value of the
control bits 2
n
Logical
state
Required function
Hot channel control
Filter for actual value indication off
Filter for actual value indication on
1
0
1
0
1
0
1
0
1
0
0
Actual
value
in BCD
binary
Yes
No
Heating current monitoring
2
0
2
1
2
2
2
3
2
4
2
6
2
7
Must be 0
1
0
1
0
2
5
Cascaded control
Bit 0 If the actual value indication is unsteady, a filter can be looped into the indication
processing. Bit 0 = 0 filter on (damped display)
Bit 1 Heating current monitoring (see Section 3.3)
Bit 2 If this bit is set, two parameter sets can be used for each controller, e.g. separate
parameters can be set for cooling.
and:
The controller parameters can be read in and out by the function block; i.e. the
parameters calculated by the self-tuning function can also be read into the CPU
and saved.
If Bit 2
2
= 0, the self-tuning function is started and stopped via byte 22, Bit 2
1
(self-tuning parameter). This corresponds to the functionality of the IP 244
version -3AA13 with the old FB 162 (32 messages).
If Bit 2
2
= 1, the self-tuning function is started and stopped via byte 22, Bit 2
7
using
upward and downward edges. These edges are generated by the new FB 162 (64
messages) for each controller separately via the command ”SE”.
Bit 3 Selection of the special function for reading in measured values.
The special function can only be selected when hot channel control or
Pt 100 operation or heating current monitoring have been selected.
Bit 4 If this bit is set, the hot channel control (see Section 3.1) is activated.
Bit 5 Enables cascaded control (see Section 3.2).
To Next Page
Loading...
