Comtech EF Data CSAT-6070 - Manual (Page 69)

50 Watt C-Band Transceiver Revision 0
Remote Control MN/CSAT607050.IOM
2. From Slave to Master, the only permitted values are:
= (ASCII code 61)
? (ASCII code 63)
! (ASCII code 33)
* (ASCII code 42)
# (ASCII code 35)
They have these meanings:
The = code (slave to master) is used in two ways:
• First, if the master has sent a query code to a slave (for example UAT?,
meaning what’s the Transmit Attenuation?), the slave would respond with
UAT=xx.xx, where xx.xx represents the attenuation in question.
• Second, if the master sends an instruction to set a parameter to a particular
value, then, providing the value sent in the argument is valid, the slave
will acknowledge the message by replying with UAT= (with no message
arguments).
The ? code (slave to master) is only used as follows:
• If the master sends an instruction to set a parameter to a particular value,
then, if the value sent in the argument is not valid, the slave will
acknowledge the message by replying with (for example) with UAT?
(with no message arguments).
• This indicates that there was an error in the message sent by the master.
The * code (slave to master) is only used as follows:
• If the master sends an instruction to set a parameter to a particular value,
then, if the value sent in the argument is valid, but the CSAT will not
permit that particular parameter to be changed at that time, the slave will
acknowledge the message by replying with (for example) with UAT*
(with no message arguments).
The ! code (slave to master) is only used as follows:
A-5