Title: 36 Siemens GDB181-MO.pdf.pdf
à Register 2 The actuator can be operated in override control for checking / maintenance purposes or system-wide functions (e.g. night-cooling).10.2.4.1 Local overrideThe actuator enters this state when a service tool is connected by the service interface (PPS2). Available commands:Open / Close (depends on opening direction)GoToMin / GoToMax (depends on Min/Max settings)StopIf the actuator is in backup mode, it will be controllable in local override but resume the backup modewhen the service tool is disconnected ,when the local override timeout is exceeded, orwhen the override control is set to “off”.Timeout is 10s after the last read or write access.10.2.4.2 Remote overrideThe actuator enters this state when an override command is sent over the bus. The override control is available in Modbus register 2 with the following enumeration:Open / Close (depends on opening direction)GoToMin / GoToMax (depends on Min/Max settings)Stop35 / 40VAV Compact Controller Modbus RTU