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©
2019 Radiocrafts AS
MBUS User Manual (ver 2.01)
MBUS USER MANUAL
header). When using more than 64 bytes for one message, the following mailbox cannot be used. That is, if four
mailboxes of 255 bytes are to be used, they should be addressed as number 1, 5, 9 and 13.
Mailboxes can be written and read using the
‘W’-command, and the ‘R’-command.
The Mailbox number should be 1-15. There is no restriction on the C-field value, but do note that OMS specify only
a set of allowable C-fields. The Length byte shall be the number of bytes following, not including the Length byte
itself.
Long mailbox messages must be pre-encrypted in order to meet the time constraints in T mode. This is done by
using the E-command. If the message holds a valid address, the Configuration Word is set for encryption, and the
Encryption flag is disabled, the message will be encrypted and re-stored in the Mailbox.
Caution!!
The binding (
‘B’-command) and Encryption Key entry (‘K’-command) will erase the Mailbox (due
to memory constraints in the module).
Note!
If the message (including C and Length) is more than 64 bytes, the following mailbox cannot be used.
Note!
If the Encryption flag is not disabled, the message will be encrypted (again!) when transmitted.
7.4 Automatically reply with a standard message
The table below show what slave messages and replies that can be set up using standard message autoreply.
Other replies needs to be set up using mailbox.
Table 10
– Standard message autoreply codes
Slave
Master
C
Name
CI
Name
Automessage register, part: SSSSSSSS
0x46
SND-IR
0x06
CNF-IR
0b1000 0000 / 0x80
0x48
ACC-DMD 0x00
ACK
0b0100 0000 / 0x40
0x44
SND-NR
-
No reply
0b0000 0000 / 0x00
0x5A
0x7A*)
REQ-UD1
0b0010 0000 / 0x20
0x5B
0x7B*)
REQ-UD2
0b0001 0000 / 0x10
-
Reserved
0b0000 1000 / 0x08
0x08
0x28
0x18
0x38**)
RSP-UD
-
No reply
0b0000 0000 / 0x00
0x5A
0x7A*)
REQ-UD1
0b0000 0100 / 0x04
0x5B
0x7B*)
REQ-UD2
0b0000 0010 / 0x02
-
SND-NKE
0b0000 0001 / 0x01
0x00
0x02
0x10
0x30**)
ACK
-
No reply
0b0000 0000 / 0x00
0x5A
0x7A*)
REQ-UD1
0b0000 0100 / 0x04
0x5B
0x7B*)
REQ-UD2
0b0000 0010 / 0x02
-
SND-NKE
0b0000 0001 / 0x01
*) Note!
The module will automatically set the Frame Count Bit in the C-field depending on the last
transmitted FCB bit (as stored in the Flag Register). The FCB bit is automatically alternated.
**) Note!
A reply is only sent if the DFC bit in the MAILBOX configuration parameter is cleared
The Status byte will automatically be set to the incoming packet RSSI value,
