Vaisala WMT52 - Manual (Page 67)

Chapter 7 __________________________________________________ Getting the Data Messages
VAISALA_______________________________________________________________________ 65
The response:
b
Example:
?
0
If more than one sensor is connected to the bus, see Appendix A,
Networking, on page 121 . If you need to change the device address, see
Changing the Communication Settings (aXU) on page 59 .
Acknowledge Active Command (a)
This command is used to ensure that a device is responding to a data
recorder or another device. It asks a device to acknowledge its presence
on the bus.
Command format: a
The response:
a
Example:
0
0
where
b
= Device address (default = 0)
= Response terminator.
where
a
= Device address
= Command terminator
where
a
= Device address
= Response terminator