Specifications

48 GX Configurator-PN
(c) 2013 MITSUBISHI ELECTRIC CORPORATION
From CPU to PROFINET IO-Controller
Global Variable Identifier
IO-Device
Number
Values
0
1
vPN_MGMT_OUTPUTS.IOD_MGT_ALARM[0]
…
vPN_MGMT_OUTPUTS.IOD_MGT_ALARM[15]
0
..
15
Automatic
..
Automatic
Manual
..
Manual
vPN_MGMT_OUTPUTS.IOD_MGT_ALARM[16]
…
vPN_MGMT_OUTPUTS.IOD_MGT_ALARM[31]
16
..
31
Automatic
..
Automatic
Manual
..
Manual
…
…
….
….
vPN_MGMT_OUTPUTS.IOD_MGT_ALARM[116]
…
vPN_MGMT_OUTPUTS.IOD_MGT_ALARM[127]
116
..
127
Automatic
..
Automatic
Manual
..
Manual
For an IO-device in automatic mode the IO-controller automatically acknowledges each alarm recei-
ved from an IO-device (IOD_ALARM_IND bits are not used). For an IO-device in manual mode an
alarm indication is signalled to the PLC program via the IOD_ALARM_IND registers.
From IO-Controller to CPU
Register
Function
vPN_MGMT_INPUTS.IOD_ALARM_IND[0]
Alarm has been received from the device 0
…
Alarm has been received from the device n
vPN_MGMT_INPUTS.IOD_ALARM_IND[127]
Alarm has been received from the device 127
Note: the stack can store internally both high and low priority alarms. When the CPU requests
alarms, the high priority alarm will be returned first. The IOD_ALARM_IND bit for the corresponding
device will be reset only after the management of both alarms.
The following diagram demonstrates an alarm cycle (when alarm management is activated by the
PLC program).