Specifications

49PROFINET Controller ME1PN1FW-Q

Note: a ring buffer exists for each device. This ring buffer stores up to seven alarms for each IO-devi-

ce. Each incoming alarm is logged in this ring log buffer, from which the PLC can read using acyclic

requests.

2.1.4 Network Diagnostics

PROFINET IO Controller Status

The bits in these two words provide information on the IO-controller stack state.

From PROFINET IO-Controller to CPU

Global Variable Identifier

Values

vPN_MGMT_INPUTS.IOC_STS_CON

FIG_OK

No configuration.

Configuration OK.

vPN_MGMT_INPUTS.IOC_STS_CON

FIG_DOWNLOADING

A new configuration is dow-

nloading

vPN_MGMT_INPUTS.IOC_STS_KEY

FILE_ERROR

Missing or wrong keyfile

vPN_MGMT_INPUTS.IOC_STS_STA

RTED

Not Started

Started

vPN_MGMT_INPUTS.IOC_STS_ERR

OR_DIAG_SET

No error

Error occured (see Diagno-

stic area)

vPN_MGMT_INPUTS.IOC_STS_PLC

_WD_ERR

Watchdog ok or watchdog

mechanism disabled

Watchdog mechanism de-

tects that PLC is not run-