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Technical Documentation 09-01-16
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NLB-60E communication protocol - Revision 2 DRFT 2A.doc
5 Message reference
5.1 Error replies
If an error occurs the bridge responds with ‘ERROR!
[Message]
’ where the message part is a
more detailed description of the error.
The following errors may occur:
1.
‘ERROR! Unable to parse – [
additional information about parsing error
]’
a.
There was an error when parsing the command
2.
‘ERROR! VDN does not exist’
a.
The VDN that was referred to does not exist
3.
‘ERROR! Device not found’
a.
The physical device linked to the VDN does not exist on the network
4.
‘ERROR! Device Control is connected’
a.
Device control is currently connected (i.e. not accepting 3
rd
party messages)
5.
‘ERROR! Channel number is out of range’
a.
The channel that was referred to was outside the range for that device
6.
‘ERROR! Internal error [
internal error code
]’
a.
Internal error, please note code for further assistance and troubleshooting
5.2 Subnet messages
The following messages affect all devices in a subnet.
5.2.1 Subnet Power
Use to set / get power status for all devices in a subnet. After changing status the result of the
subnet power command is usually “In transition” meaning that the changes are taking place
but are not yet completed.
Address
Op.
Value
0 – Turn off all devices
1 – Turn all devices on
=
Reply
Subnet.Power
?
0 – All devices are off
1 – All devices are on
2 – Mixed, some are on and some are off
3 – In transition, one or more devices are changing their
power status
