Rainbow Electronics RC1180-MBUS - Manual (Page 3)

RC1180-MBUS
 2008 Radiocrafts AS RC1180-MBUS Data Sheet (rev. 1.0) Page 3 of 28
Wireless M-Bus modem
The standard RC1180-MBUS module acts like a wireless M-Bus modem with a UART
interface. The embedded protocol transmits and receives the wireless M-Bus data packets
based on application messages from an external source (the meter or the concentrator). The
module automatically adds the Command field, the Manufacturer ID and the unique Address
based on parameters configured in the module.
Timing and application layer protocol is to be handled externally. The UART data can easily
be converted to USB or RS485/232 to interface external equipment.
The module is configured through its UART interface using a simple command set. Configur-
ation parameters are stored in non-volatile memory.
The module can be set in Sleep mode with very low current consumption, and wake up on
UART activity. The protocol for UART application messages is as follows:
From meter to module:
1 byte 1 byte n bytes
Length CI APP_LAYER
From module to other (with meter address):
1 byte 1 byte 2 bytes 6 bytes 1 byte n bytes 1 byte
Length C ManID Address CI APP_LAYER RSSI (opt)
From module to other (without meter address):
1 byte 1 byte n bytes 1 byte
Length CI APP_LAYER RSSI (opt)
Similar commands are available for configuration via the UART interface.