105U-G Wireless Gateway
User Manual
Page 89
© September 2004
4.10.4
Message Interface
In addition to cyclic data exchange with slave devices, the 105G Profibus Master also
supports a number of acyclcic services that may be triggered via a special
Message Interface
.
The message interface is by default disabled, but will become enabled by also enabling a
“Status Location” via the
fieldbus configuration
tab in configuration software.
The message interface is used to instruct the 105G to perform a specific task, to request data,
to indicate certain events (alarms), or to respond to requests. The message interface can be
controlled via a host or other smart device by constructing the appropriate message in the
Message Interface Area of the 105G I/O Registers (radio interface). Since the message
interface is part of the radio interface, it may be controlled either remotely via appropriate
block mappings (i.e. remote 105G), or locally via a device on the profibus network (i.e.
configuration tool, PLC, or other smart device).
The supported messages are listed in the table below.
Message
Description
SET_SLAVE_MODE
Send control command to slave(s) (Sync/Freeze)
GET_SLAVE_DIAG
Get diagnostic information from a slave
GET_SLAVE_CONFIG
Get slave configuration
SET_SLAVE_ADDRESS
Set node address of a slave (If supported by slave)
MSAC1_READ
acyclic read (class 1)
MSAC1_WRITE
acyclic write (class 1)
GET_LIVE_LIST
Get information from all nodes on the network
MSAC1_PROFIDRIVE_V3_PARAM_
WRITE
PROFIdrive v.3 acyclic parameter access
MSAL1_ALARM_IND
Alarm indication from DPV1 slave
MSAL1_ALARM_CON
Confirmation to FB_MSAL1_ALARM_IND