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Command "a": interconnection digital input 2 to digital output 1
Description: Via the command a the RCM tells the RCS of class m to switch the signal of the second
input (
DIGITAL IN 2) to the first digital output DIGITAL OUT 1.
The
RCS executes the command and sends the acknowledge which informs via the status
register about the auto switch status (enabled or disabled) and if there is a sync signal on
DIGITAL IN 2 or not.
These conditions together determine the behavior of the
RCS.
Example: The command a is sent to the second RCS.
Message <STX> <TYPE> <ADDRH> <ADDRL> <Body> <STATH> <STATL <CHKH> <CHKL> <ETX>
m0 2 a 30
Let's assume the second input is provided with a signal, so the actual routing will be the
target routing, no matter of the autoswitch status. For calculating purposes, the bits refer-
ing to autoswitch, the first input and the second output will be set to 1. Thus the status
register looks like this:
Status Auto Switch Out2
true
Out1
true
Reserved Out2
target
Out1
target
Prsnt2 Prsnt1
11101 111
Thus the acknowledge sent from the second RCS to the master reads:
Acknowledge <STX> <TYPE> <ADDRH> <ADDRL> <Body> <STATH> <STATL <CHKH> <CHKL> <ETX>
m0 2 a e ffb
Result: The actual routing of
DIGITAL OUT 1 is the target routing, and the signal present on
DIGITAL INPUT 2 is displayed on the projection module connected to DIGITAL OUT 1.