CIRCUTOR CMBUS series - Manual (Page 6)

1�- VERIFICATION UPON RECEPTION
Check the following points when you receive the unit:
a) The unit meets the specifications described in your order.
b) The unit has not suffered any damage during transport.
c) Perform an external visual inspection of the unit prior to switching it on.
d) Check that it has been delivered with the following:
- An installation guide.
If any problem is noticed upon reception, immediately contact the transport
company and/or CIRCUTOR's after-sales service.
2�- PRODUCT DESCRIPTION
CMBUS protocol transducers enable devices with RS-485 Modbus Master communications to
communicate with different M-BUS slave units.
There are two unit models:
 The CMBUS-8 model can communicate with 8 slave units (100 parameters).
 The CMBUS-24 model can communicate with 24 slave units (500 parameters).
MiniDips
LEDs
Terminals
Terminals
Figure 1: Description of the CMBUS
The unit features:
 4 MiniDips for configuration,
 3 LEDs that indicate the converter status and the M-BUS and Modbus traffic,
 An RS-232 connection for the initial configuration of the unit.
M-BUS slave units are integrated into the transducer using programming software.
6
CMBUS
Instruction Manual