Contemporary
Research
17
ICC-STA/ICA-FT6
iC-Net Responses
The ICC-STA will send a response over the network whenever there is there is a change in status or command
from a panel.
Response String Structure
Characters in response strings are expressed in a combination of hex and ASCII characters. For clarity, the
following protocol examples use the following conventions:
•
ASCII characters or strings are shown enclosed in single quotes
•
Numbers shown that are not in single quotes are a single decimal byte
•
Parameters shown in < > brackets are single byte
•
A series of multiple commands or parameters are set apart by [ ] brackets
•
Commas separate the bytes, but are not part of the protocol
•
Double quotes enclose the command string, but are not part of the protocol
Command format:
“ ‘<’,<dh>,<dl>,<nrb>,<rb1>, <para1> [<rbN>]"
‘>’
Starts the response
<dh>
The zone or high order byte of the device
<dl>
The unit or low order byte of the device (0 for global zone)
<nrb>
The number of response bytes to follow
<rb1>
The first response byte
<para1>
Associated parameters, if any
[<rbN>]
Multiple responses may be included
Response
Code Description
New Channel T
“ ‘<’,<dh>,<dl>,2,'T',<new channel>" (6 bytes)
Sent in response to T? command.
Key K
“ ‘<’,<dh>,<dl>,2,'K',<Key>" (6 bytes)
Sent when unit receives a KK command from the ICA-FT6. In ICC-STA applications,
the Key character will be sent from the Head End Controller to the control system,
triggering a programmed activity.
The Channel Up/Down functions (22 = Channel Up, 23 = Channel Down) are sent
only if enabled in the TM command (Bit 2 = 1). The Channel Up/Down responses will
also be sent if the Tune Ring contains no channels – see Ex2 in the Tune Ring
command section. In most case, you’ll want to turn the Channel Up/Down Key
operation off.
Tip: In our ICC-STA applications, we send Key characters 1-128 to trigger various
control functions in a control system, such as attendant call or light on/off. We’ll use
characters 129-134 to indicate a release of a specific button. For example, a “130”
indicates the release of button 2 (130-128=2).
