Commissioning; Notes On Commissioning; Control Unit Settings; Setting The Control Unit Address - Bosch Control 8313 Service Instructions For Contractors

Commissioning

8 Commissioning
8.1

Notes on commissioning

▶ Ensure there is sufficient heat load available
(e.g. by the DHW heating).
Otherwise the heat source will switch off.
Different messages are displayed according to the application.
8.2

Control unit settings

With this control unit, a number of temperatures are specified by the
SAFe of the heat source.
The temperature values are set or modified via the touch screen.
Long burner run times can be ensured by optimising the settings at the
control. Rapid temperature fluctuations in the heat source are avoided.
Gentle temperature transitions extend the service life of the heating
system.
8.2.1

Setting the control unit address

Each connected control unit must be given a different address if several
control units are networked. A fault is indicated on the display of the user
interface if the same address is allocated more than once.
The address is set [5] at the control unit on the back of the user
interface.
▶ Remove the user interface.
▶ Set the control unit address (e.g. using a screwdriver).
11
LAN1
10
LAN2
9
- +
8
Fig. 13 Back of the user interface
[1] Slide type insert for SD card
[2] CAN-BUS connection
(no function, provided for subsequent functions)
[3] Modbus-RTU connection for CHP module
[4] EMS connection (connection for EMS heat source
with its own basic control (control panel))
[5] Address setting of control unit
[6] Jumper for activating the Modbus-RTU terminating resistance
[7] Jumper for activating the CAN-BUS terminating resistance
[8] Battery CR2032
[9] Network connection 2 (CBC-BUS)
[10] Network connection 1 (Internet, Modbus TCP/IP, CBC-BUS)
[11] USB connection
16
1
2
J1
3
J2
4
7 6 5
0010005508-001
Address Description
0 Stand-alone control unit (default setting):
• The controller operates alone.
Master (lead control unit):
• The master activates the heat source.
• Always connect the outside temperature sensor to the
master.
• The master recognises if an address has been allocated
more than once. A fault is indicated on the display of the
user interface.
• All networked controllers transfer their set values to the
master. The master uses them to generate the overall set
value.
• Only 1 master is permitted in each network!
1...15 Slave (control units subordinate to the master):
• The address 0 must never be assigned to a slave.
• Each address is only allocated once.
Table 4 Control unit addresses
8.2.2

Terminating resistors

The terminating resistors J1 and J2 ( Fig. 13, [6], [7], page 16) are
closed in the delivered condition (activated = inserted). If a network is
established via the BUS connections ( Fig. 13, [2], [3], page 16), the
jumpers must be opened here and closed at the last BUS node.
Control 8313 – 6720859567 (2017/03)