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5.2
RS485 Digital Interface
5.2.1.
Hardware Bus Termination
E+E room sensors with digital interface feature an internal 120 Ω resistor for bus termination TES201 which can
be activated using the jumper on the electronics board (see also chapter 3.3 Electrical Connection for details).
Jumper not mounted,
(right position = factory setup)
Bus is not terminated
Fig. 2
Jumper position for RS485 bus termination resistor
5.2.2.
Device Address
Address setting via PCS10 Product Configuration Software
Address setting via DIP switch
5.2.3.
BACnet Protocol Settings
Baud rate
Data bits
Parity
Stop bits
BACnet address
Tab. 1
BACnet protocol settings
PLEASE NOTE
The recommended settings for multiple devices in a BACnet MS/TP network are 38 400, 8, none, 1.
Jumper mounted,
(left position)
Bus is terminated
All DIP switches at position 0
Modbus (slave device): factory setting 45 (permitted values: 1...247).
BACnet (master device): factory setting 45 (permitted values: 0...127).
Example: Address is set via configuration software = factory setting.
Modbus (slave device): Setting the DIP switches to any other address than 0,
overrules the Modbus address set via PCS10
(permitted values: 1...247).
BACnet (master device): Setting the DIP switches to any other address than
0, overrules the BACnet address set via configuration software. BACnet note:
permitted values are 0...127. The 8th bit of the DIP switches is ignored
(ID 127 = 0111 111). To set address 0 via DIP switches, the 8th bit shall be set
to 1 (ID 0 = 1000 0000).
Example: Address set to 11 (= 0000 1011 binary).
Factory settings
As ordered via order code
8
None
1
45
address has to be set via PCS10
User selectable values (via PCS10)
9 600, 19 200, 38 400, 57 600, 76 800, 115 200
8
None
1
0...127
User Manual TES201
Room Sensor for Temperature | 11
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