Programming
11
AXB-PCCOM Communications Port Interface
Response Mask
If the AXB-PCCOM receives a change, it sends data automatically. Disable this feature if the data
is not used. Bits in the response mask will turn off the data.
1 = ON Data sent
0 = OFF Data not sent.
Axcess Master Mode
When an Axcess device is placed in "Master Mode", the Central Controller’s
PROGRAM
port is
moved to the Axcess device’s RS-232 port.
Press the escape key, then type either
MC
or
MD
:
<esc>
MC
- connects the device in Master Mode
<esc>
MD
- disconnects the device
where <esc> means "press the Esc key".
Return/Requests sent to the AXB-PCCOM
Command
Packet Structure and Example
Receive String
Syntax:
'&' <3> <DEVICE> <# BYTES> <STRING> <CHECKSUM>
Example:
"'&',3,0,9,'AXB-PCCOM',172"
AXCESS sent the string 'AXB-PCCOM' to device 0 (AXlink device 128).
Response Mask for the AXB-PCCOM
Byte
Bit
Data Controlled
Default
First byte (mask 1)
7 (msb)
Receive String
1
6
Receive Channel
1
5
Channel Change
1
4
Level Change
1
3
Bus LED
0
2
(Reserved for Future use)
0
1
(Reserved for Future use)
0
0 (lsb)
(Reserved for Future use)
0
Second byte (mask 2)
7 (msb)
(Reserved for Future use)
0
6
(Reserved for Future use)
0
5
(Reserved for Future use)
0
4
(Reserved for Future use)
0
3
(Reserved for Future use)
0
2
(Reserved for Future use)
0
1
(Reserved for Future use)
0
0 (lsb)
(Reserved for Future use)
0
Master Mode can be very useful in situations where physical access to the Central
Controller’s
PROGRAM
port is not practical (for example, in installations where the
Central Controller is located a long distance from the bus device(s)).
