Contents
38
PAC8000* IO PROFINET Scanner
User’s Manual–September 2017
GFK-2839B
Chapter 4.
Diagnostics
This chapter describes:
■
PNS Status and Control Data
o
Output Control Register
o
Input Status Registers
o
PNS Status register
o
PNS Network port status register
o
PNS Power status register
o
PNS Module health status register
■
Error Handling
o
Fatal Error Handling
o
PROFINET Alarms
o
PROFINET Module Loss, Add & Mismatch Faults
4.1
PNS Status and Control Data
The PAC8000 PROFINET Scanner provides 64 bits of input status data and receives 16 bits
of output control data. The application program in the IO-Controller system can monitor the
input status bits and can perform some control operations using the output control bits. This
data is associated with slot 0 submodule 1 in the configuration.
4.1.1
Output Control Register
The PNS
’s 16 bits of output control data can be used to trigger module actions.
Output
Bits
Name
Description
1 (LSB)
Reset
0 to 1 transition resets the PNS.
1 to 0 transition has no effect.
2
Set Failsafe
0 to 1 transition sets the PNS to failsafe state.
1 to 0 transition has no effect.
3
Clear Failsafe
0 to 1 transition commands the PNS to clear failsafe state
1 to 0 transition has no effect.
4
Heartbeat Enable
1 = Enable Heartbeat feature.
0 = Disable Heartbeat feature.
5
Heartbeat
Remote application (host) should toggle this bit to indicate it is
alive. When there is no update to this bit for more than
configured communication timeout, the PNS treats it as a
communication/application failure and goes to failsafe state.
Applicable only when
“Heartbeat Enable” in output control
register is ‘1’.
6
– 16
Reserved
