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PAR. DESCRIPTION
CYCLIC CONTROLLER (Folder cLc)
Con ON time for cyclic controller output
CoF OFF time for cyclic controller output
ALARMS (Folder ALAr)
Parameter HA1/2 and LA1/2 modes, as absolute temperature values or as differential
Att
compared with the Setpoint. (Abs = absolute value; reL = relative value).
Alarm activation differential. It works with parameters "HA1/2" and "LA1/2".
AFd
(see 'MAX/MIN Temperature Alarms' diagram)
PAO
Power-on Alarm Override. Alarm exclusion time (expressed in hours) after instru-
(!)
ment is switched on following a power failure.
Alarm exclusion time until the Setpoint is reached.
If "SAO" = 0 it is disabled.
SAO
- If "SAO">0, an alarm will be generated if the
Setpoint is not reached after the time (in hours) set by this parameter.
tAO Temperature Alarm Override. Temperature alarm signal delay time.
AOP Alarm output polarity. nC = normally closed; nO = normally open;
COMMUNICATION (Folder Add)
PtS Select communication protocol (t = Televis; d = Modbus)
dEA device address within the family (valid values from 0 to 14).
device family (valid values from 0 to 14).
FAA
The pair of values FAA and dEA are the network address of the device and are
given in the format "FF.DD" (where FF=FAA and DD=dEA).
Pty Modbus parity bit: n = none; E = Even; o = odd;
StP Modbus stop bit: 1b=1 bit; 2b=2 bit;
U.M.
RANGE
MODEL
ALL
min
0 ... 255
ALL
min
0 ... 255
flag
Abs/reL
ALL
ALL
°C/°F
1.0 ... 50.0
ALL
hours
0 ... 10
ALL
hours
0 ... 24
ALL
min
0 ... 255
ALL
flag
nC/nO
ALL
flag
t/d
ALL
num
0 ... 14
ALL
num
0 ... 14
ALL
flag
n/E/o
ALL
flag
1b/2b
DR4020 DR4022
0
0
0
0
Abs
Abs
2.0
2.0
0
0
0
0
0
0
nC
nC
0
0
0
1
0
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