ms/monitor is a SAP Parameter attribute which is used to control Enable/disable external monitor information. This is available within R/3 SAP systems depending on the version and release level.
Below is the standard documentation available and a few details of the attributes values .
With this parameter you can allow or forbid an external monitor for the
message server.
The following values are permitted:
0: Only application servers can execute monitor functions
1: External monitors can also do this (for example, msmon)
Using the
See SAP Parameter Documentation for full SAP documentation for this profile parameter.