In a Modbus network, RTU Mode communication objects can be exchanged between individual devices. The "Receive timeout" defines the time period within which all communication objects requested from a device are received at least once. If a communication object is not received within this period, default value is used.

RTU Mode

Fixed time is specified as follows:

  • Receive timeout:  31 minutes
  • Send heartbeat:  15 minutes

Object

I/O

Minutes

Default value

Forced operating mode for Protection

Receive

31

Disable

Room temperature via bus

Receive

31

- *

Window contact

Receive

31

Closed

Presence detector

Receive

31

Absent

Keycard

Receive

31

Yes

* Temperature from internal or external room temperature sensor is used.