Specifications

Quintech Electronics and Communications Inc. Protocol Version 2.15 15

SRX Series Protocol

Q: Check Queue

This command will read the change queue. The change queue contains up to 8 crosspoint

changes executed since the last Q command. All crosspoint changes are put in the queue

regardless of the source. If more than one change is executed for a given output, only the

last change will be stored in the queue. The ASCII number after Q in the response is the

number of changes that the queue contains and ranges from 0 to 8. If no crosspoint changes

are stored in the queue this number will be zero (30h). If more than 8 changes occurred since

the last Q command, this number will not be valid and bit 3 of the queue change flag will be

set to signal that an overflow has occurred. After the queue is checked the queue and the

queue change flag are cleared.

Command sent:

02 XX XX 51 03 XX

STX ADR ADR Q ETX CHK

Example positive responses:

06 XX XX 51 30 03 XX

ACK ADR ADR Q 0 ETX CHK

(No changes have occurred)

06 XX XX 51 32 30 30 35 30 31 35 30 31 36 30 30 31 03 XX

ACKADRADR Q 2 0 0 5 0 1 5 0 1 6 0 0 1ETXCHK

(Two changes have occurred: output 5 was connected to input 15, and output

16 was connected to input 1)