Index
GFK-2839B PAC8000* IO PROFINET Scanner User’s Manual–September 2017 39
4.1.2 Input Status Registers
PNS Status Register (PSR)
PNS Network Port Status Register (PNSR)
PNS Power Status Register (PPSR)
Module Health Status Register (MHSR)
4.1.2.1 PNS Status Register (PSR)
The PSR provides 16 bits of information about the PNS module. All status bits are active
high.
1 = PAC8000 PNS is up and running
0 = Unrecoverable fault detected during power up
1 = Alarm generated by PNS
0 = All alarms are cleared.
1 = PNS is in failsafe state
0 = PNS is not in failsafe state
IO-Controller sets “Heartbeat” in output control register and
when PNS receives it, it echoes back that value in
“Heartbeat Echo”. Echoing before the configured
communication timeout confirms communication between
IO-Controller and PNS is healthy.
1 = Heartbeat failure
0 = Heartbeat OK
4.1.2.2 PNS Network Port Status Register (PNSR)
The PNSR provides 8 bits of information about the network. All status bits are active high.
1 = Link detected at port 1 of PNS
0 = Link failure at port 1 of PNS
1 = Link detected at port 2 of PNS
0 = Link failure at port 2 of PNS