Acknowledgment of diagnostics in I/O modules on right hand side

PLCnext Engineer
1

Hi,

We have previously used safety I/O modules AXL F PSDI8 and PSDO8 alongwith a bus coupler in some Profisafe projects with RFC470S/480S. To acknowledge diagnostic alarms we had to use PNFD/PNDD/PN_Info function blocks from PN_Dev_Diag and AsynCom libraries.

For a small project we have now used AXC F 2152 with SPLC 1000 on left side and PSDI8 and PSDO8 on right side. The problem I am facing is that these function blocks seem to require a Profinet Node ID that I am unable to locate in PLCnext Engineer. The provided examples are only valid for I/O modules used with a bus coupler, and not directly connected to PLC. PN_Info is not available for PLCnext either, so cannot use it to retrieve Node IDs either.

Does someone have any experience with this kind of setup?
2

In the PLCnext store there is a new library - PN_ALARM_DIAG.

PN_ALARM_DIAG is the recommended alternative to the PN_DEV_DIAG library.

Unfortunately this library does not yet support AXC local bus diagnostics - this feature is currently under development.

Instead, Axioline PDI services can be used to read the diagnostics via the "DiagState object 0x0018" (using the PDI_READ FB) and to acknowledge the diagnostics with the "ResetDiag object 0x0019" object (using PDI_WRITE).

See the Axioline PROFIsafe module data sheets for details of the PDI data that can be read and written in this way.