E.6 Mailbox Functionu Mailbox Function Pointsn Reading a Drive ParameterTwo points are defined for reading any drive parameter:• Point 70 specifies the parameter to be read from• Point 71 reports the value of the parameter specified in Point 70When this point is read, it retrieves data from the parameter and sends it to the controller.Example:Writing a value of 387 (183 hex) to Point 70 specifies drive parameter b1-04. Reading Point 71 returns the current setting ofparameter b1-04 to the controller.n Writing to a Drive ParameterTwo points are defined for writing to any drive parameter:• Point 72 specifies the parameter to be written to• Point 73 is the entry location of the value to be written to the parameter specified in Point 72When this point is written to, it will write the value to the drive. An enter or accept command does not need to be sent for thedata to be taken by the drive. The behavior of the write is the same as with the HOA keypad. If the drive is running, there area limited number of drive parameters that can be written to.Example:Writing a value of 387 (183 hex) to Point 72 specifies drive parameter b1-04. Writing a value of 1 to Point 73 enables thedrive for reverse run.E.6 Mailbox FunctionYASKAWA ELECTRIC SIEP YAIZ1B 01E YASKAWA AC Drive – Z1000 Bypass Technical Manual 419E Apogee FLN NetworkProtocol
