Pixsys ATR 121 - Serial Communication Setup; Alarm Intervention Modes; Absolute or Threshold Alarm

13
10.7 Serial communication
Models ATR121-xT , ATR141-xT
RS485, protocol MODBUS-RTU
Do not use LT (line termination)
resistors
11 - ALARM INTERVENTION MODES
11.1 Absolute Alarm or Threshold Alarm (
selection)
On On
Off Off
Pv
> 0
Hysteresis
parameter
Time
Alarm
output
A
larm Spv
Absolute alarm with
controller in heating
functioning
(Par.11
selected
) and hysteresis
(absolute value
)
On On
Off Off
Pv
> 0
Hysteresis
parameter
Time
Alarm
output
A
larm Spv
Absolute alarm with
controller in cooling
functioning
(Par.11
selected
) and hysteresis
(absolute value
)