AML M2500 Decoder - Manual (Page 13)

9
DAISY CHAIN INSTRUCTIONS
Daisy Chaining Using SOFTCOM Keyboard Emulation Software to Poll M2500's
1. Set SOFTCOM keyboard emulation software for daisy chaining.
2. Program each M2500 decoder with a unique daisy chain ID.
Daisy Chaining Using SOFTCOM Keyboard Emulation Software and a Master
M2500 to Poll the Other M2500's in the Daisy Chain
1. Do not set SOFTCOM for daisy chaining.
2. Program the 1st M2500 (MASTER) to be the daisy chain Master Controller.
3. Program each daisy chained M2500 decoder with a unique daisy chain ID.
NOTE: The MASTER M2500 cannot be used for data entry.
Daisy Chaining Using an M2000/M2002 to Poll the M2500's in the Daisy Chain
1. Program the M2000/M2002 to be the Daisy Chain Master Controller.
2. Program each M2500 decoder with a unique daisy chain ID.
NOTE: Under most circumstances the M2000/M2002 should have the
serial port programmed for 'PASS THROUGH' mode.
Daisy Chaining Using Your Own Polling Software
1. Each transmitted ID must be followed with a CARRIAGE RETURN <CR>.
2. If the decoder that is being polled has any data, it begins transmitting data
within 2 characters time at the current baud rate.
EXAMPLE: Using 9600,N,8,1 as the Serial Port Parameters.
The decoder has an ID of '1', so the polling software
sends a '1' + <CR> and waits for at least (104 * 11 *2)=
2288 microseconds for the decoder box to start sending
data. If the decoder box does not start sending data,
then start the polling sequence for the next decoder. If
data is received, allow a delay of 50 milliseconds
following the last data character before polling again.