Start-up behavior with unplugged or damaged I/O module on hot swap terminal unit TU5xx-H

System and I/O modules attached to the processor module are starting (except unplugged or damaged module when plugged on hot swap terminal unit).

As soon as the correct and operational I/O module is plugged on the terminal unit, the module is configured and ready to start.

No specific setting needed.

Start-up behavior with wrong I/O module type on any terminal unit

System and I/O modules are not starting

Diagnosis of presence of hot swap terminal unit

Diagnosis using PLC browser command "io-bus desc" in Automation Builder.

The PLC browser then provides an overview of the modules on the I/O bus including the position of hot swap terminal units in the I/O bus.

In the application program this can be detected with a function block "IoModuleHotSwapInfo" (Library: AC500_Io/Function Blocks/I/O-Bus).

One instance of function block is needed per terminal unit on the I/O bus. The function block provides five outputs delivering information about slut number, hot swap capability and plugged/unplugged state of the I/O module

Diagnosis while hot swap module is pulled or module (mounted on hot swap terminal unit) has stopped working

If module is pulled then diagnosis Err 9480 "Module removed from Hot Swap Terminal Unit" is generated

Diagnosis after plugging the I/O module on the hot swap terminal unit

Diagnosis Err 9480 is automatically acknowledged