HEIDENHAIN iTNC 530 HSCI - PLC Inputs;Outputs; 24 V - Switching Input;Outputs

1526 HEIDENHAIN Technical Manual iTNC 530 HSCI
8.9 PLC inputs/outputs
The following PLC modules are no longer supported in HSCI systems. The
modules return error code 2 in W1022 when they are called in HSCI systems:
 PLC Module 9002
 PLC Module 9003 (returns error code 3 in W1022)
 PLC Module 9005
 PLC Module 9007
 PLC Module 9008
 PLC Module 9009
 PLC Module 9030
 PLC Module 9137
 PLC Module 9138
 PLC Module 9139
8.9.1 24 V– switching input/outputs
In PLC addresses you can find the current states of the switching inputs and
outputs. In a system with HSCI, the PLC inputs and outputs are configured in
the IOconfig software tool for PCs.
With Module 9004 you can evaluate the rising or falling edge of the PLC
inputs.
If all PLC outputs are switched off (e.g., during PLC program compilation or
due to a PLC run-time error), the outputs that can not be switched off by an
emergency stop can be switched off with a delay.
If all PLC outputs are switched off (e.g., during PLC program compilation or
due to a PLC run-time error), correspondingly configured outputs can be
switched off with a delay.
In a system with HSCI, the settings for the delay times are configured in the
IOconfig software tool for PCs.
The delay only affects outputs that cannot be switched off by an emergency
stop, since for the outputs that can be shut off by an emergency stop, the 24 V
supply is shut off immediately. The outputs that are to be switched off via an
emergency stop are defined via an appropriate wiring of the 24 V supply of
these outputs (see the basic circuit diagram). Please refer to the
documentation for IOconfig.
Note
Before the PLC program is converted, the PLC outputs are reset. In
addition, the memory of the PLC outputs is reset.
During a loss of power (power fail), the control tries to reset the PLC
outputs.