Message available (mav), Standard event status summary (esb), Master summary status (mss) – AMETEK XG Family Programmable DC User Manual
Page 165: Request service (rqs)

Remote Operation
M370430-01 Rev E
5-33
5
Message Available (MAV)
This bit is TRUE whenever the power supply is ready to accept a request
by the Digital Programming Interface to output data bytes. This
message is FALSE when the output queue is empty.
Standard Event Status Summary (ESB)
This bit is TRUE when a bit is set in the Standard Event Status Register.
Master Summary Status (MSS)
This is caused by one of the following:
•
Status Byte bit 0 AND Service Request Enable Register bit 0
•
Status Byte bit 1 AND Service Request Enable Register bit 1
•
Status Byte bit 2 AND Service Request Enable Register bit 2
•
Status Byte bit 3 AND Service Request Enable Register bit 3
•
Status Byte bit 4 AND Service Request Enable Register bit 4
•
Status Byte bit 5 AND Service Request Enable Register bit 5
•
Status Byte bit 7 AND Service Request Enable Register bit 7.
Request Service (RQS)
RQS is TRUE if the Service Request Enable Register has a bit set and
there is a corresponding bit within the Status Byte.